THIS CLEVELAND ROCKS! 1970 M-CODE 351C
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- เผยแพร่เมื่อ 3 ก.ค. 2024
- M-CODE MONSTER-FULL RESULTS-1970 SMALL BLOCK HP CHAMP? Rated at just 300 (gross) hp, this little know 351 Cleveland actually made more power than (almost) any of the other Muscle Car small blocks up to 1970. Despite the mild cam, the Cleveland offered massive head flow not available from GM or Dodge. Only two other small blocks made more power, and both sported Cleveland heads.
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The Cleveland is an "Other Guy" here in the states, but in Australia it's a Regular Guy.
Ever see any 3v heads I think they were Australian.
@Johnny Wishbone Yeah I always heard that the 3v and marine heads were the best. But 4v's are awesome.
I had a 4V 351 in my falcon. What a beast of a car that was
Rub it in...
They were the only Aussie made motor for years that made real power.
In NHRA pro stock in the 70s and early 80s. The Clevelands were untouchable. In order to give the competition a chance, NHRA put weight brakes on pro stock cars. The Cleveland cars had to run way heavier than anyone else. Heavier than Chevy small blocks and big blocks. Even the Chrysler Hemi could run lighter.
Bob said he had to sand bag because NHRA kept adding weight to the Clevelands.
Bob's 1978 Fairmont is in the NHRA museum. It is the only pro stock car to NEVER lose a round of competition.
@shane: your logic makes no sense, In 1976 Bob ran a Chevrolet and in 1979 he ran a Dodge. Neither of these manufacturers were ever penalized. The ONLY time in history that they put weight brakes on Pro Stock was to penalize the Clevelands.
@@daleostrom3613 Your logic makes no sense, he watched a documentary that implied he was being targeted... It wasn't even his logic.
@@BrendanCBreen: Well, Bob was the NHRA Pro Stock Chanpion in 1979 with a Dodge. NHRA did not penalize Dodge with Bob driving, so your argument doesn't hold water. You better checkout that documentary again.
@@BrendanCBreen; I wonder if that documentary was edited by Adam Schiff ??
@@daleostrom3613 Glidden ran the Monza ONLY once at Indy '76 and didn't even qualify, they went back to Ford and that's when NHRA started added weight to his Car, the Fairmont was his twist on NHRA's rules, they were adding weight to his Cubic Inches, then NHRA gave weight breaks based on Wheel Base so Bob came up with small block with the longest Wheel base in Pro Stock...there's NUMEROUS Documentaries here about Bob.
I'm not a Ford guy but I've always said the 351 Cleveland had more potential to make big power with factory heads than anything from anyone else in the 350ish c.i.d. range. Thanks Rich for proving it
Actually has more GM dna than Ford in this motor.
🤫🤐🤡
@@grandcrappyhow?
@@mikeadams42 Ford lured Bunkie Knudson, Larry Shinoda (creator of the venerable Boss 302) from GM. 1968. There are some Oldsmobile similarities in the 351C.
All right my favorite engine of all time have one in my Torino
Had 1 in my 85 stang
I had the 351 Windsor, the torque was nice, but I wanted the Cleveland. Ended up selling my 71 about 8 years ago after a possum crawled into the window while she was in storage and destroyed the interior, it was perfect save for a missing window handle knob.
I had a Cleveland out of a Torino in a '68 F100. It was a torque monster and was starving for fuel around 4K RPM. I left it stock because the torque was plenty for me. A blast to drive.
Building a cleaveland for my 71 Toronto GT edelbrock aluminum heads yeah cant wait. Miss my old 70 cougar but the torino will do!
Had one in my 70 Mustang Grande
Yessss more Cleveland content!! Keep all the odd balls coming Richard! Really like the wealthy mountain of knowledge and combos you bring us!
If you haven't seen it there is a real good Cleveland Dyno test at Nicks Garage here--> th-cam.com/video/ggaoKDn7KDI/w-d-xo.html ... it's stock, iron intake/exhaust . just a holly carb added ... very impressive power.
nick does good job over there
I'm currently building a 1972 351 Cleveland Cobra Jet I want to know what I can vote on to make the most power with a 4-speed Toploader
Hey... Dan Gurney is not an oddball!!!
@@dannywilder3275 Aftermarket heads. Or pop up pistons with the open chamber heads. Compression is power.
Explains why my 455 GTO got walked by a stock 70 Mach 1...
Not my 455.
Cleveland's are impressive.
Not in same league as big poncho.
Are you under geared?
😂😂😂😂
John Tempest dang stop trying to brag
@@johntempest267 With a 3:55 rear axle? I don't think so...
that mach 1 probably had the 302
For the longest time it was the most powerful Factory small block period.
AAA STILL IS
@@sorshiaemms5959 no it's not, many factory LS engine's make more power with more reliability because of newer technology. Ford 5.0 liter with all accessories and emissions equipment is rated @460 hp. Not even a close comparison with factory built supercharged V-8's.
@@kevind3185 Yawn.Here we go again.As usual the Ls rhetoric creeps in.A pro stock Cleveland was running 750 hp na back then and kicking Chevy Butt with Production block and heads too.Bob Glidden proved that and many others racing these engines and that was with old technologyThe full potential of these engines is being realized with more modern heads etc.I'm not interested in Ls engines.
@@petergiannaros9037 Yawn it's not rhetoric it's fact. Put a factory cast iron Cleveland head on a flow bench and put a modern factory cast aluminium LS head on the flow bench. The Numbers don't lie. That being said I'd rather see a Cleveland because I've seen about every LS .
@@kevind3185 Yeah .right.It seems that the ls engine is the first Gm engine to use even port head design.intake and exhaust..In fact Robert Yates had a hand in the design of the ls heads.What i find annoying is you get on these sites and have to criticise these Ford engines.I liove tbe Ford Cleveland engine.I should know .I own 5 of them.The Cleveland was ahead of it's time.
Dang, 450hp came pretty easy with a cam and intake swap. Impressive!
Warren Stephens : zaps 85 rebuilt his 1977 Aussie block just like Richards only with 2V heads and got the same kind of power vb.foureyedpride.com/showthread.php?147861-351-Cleveland
Kaase said long ago that the easiest way to get a 400hp Cleveland is to start pulling spark plugs wires until you get it down there! 🤣
Warren Stephens : Sorry dude, Zaps 85GT used a custom COMP Cam 614/612 lift with 234/242 duration at 50 thou, but actually used with 4v heads and made 360 hp at 6500 rpm at the wheels. That 460 net flywheel horsepower based on the dyno offset I use. See two pager at vb.foureyedpride.com/showthread.php?176600-351c-engine-build-in-my-73-Mach-1
Popular hotrod mag made 441 hp with a 351 Cleveland 4v way back in 1970 with the same set up. The power the Cleveland made was no secret to the ford guys back in the day!
Those Clevelands are no joke, want to get humbled, race an early 70's Cougar with a 351C!!!
Lmao i got a 71 that came out of a cougar that needs a rebuild. Piston rings are shot.
I have a 71 CJ Cleveland needs rebuild also
Build them up boys, then go have some fun!!!
i'll tell ya what the 70 351c from a torino, moves my 76 f250 :)
@@offroad4x4nhlife45 I have a 70 Cleveland n a 77 short bed f 150 runs great
Well you have just made some aussies very happy.. we love the Cleveland here!!
Enjoy!
The Clevo king also has some great video's from Australia. Got some good tips from him for my 70 cougar 351C car.
I’m back here watching again after I bought my very own 70’ 4V Cleveland over the weekend! It has an old school Eldrbrock 351 torker single plane aluminum intake, it still spun free! Got it for $700 in great shape from an old guy who bought it for his Fairlaine and never swap it 30 years ago 👍
I'm lucky to have a fully worked 500 fwhp 3v alloy headed Aussie Clevo in my 1971 xy ford Gt rep. Awesome engine! Thanks Richard . Still need to do a Barra 6 turbo segment lol!
We never got the Barra here in the States. We did get the GM 4.2l Atlas straight six though and he got some impressive numbers from that considering it started life in a soccer mom SUV.
The Cleveland head is probably why Woo sprint car engines must run in line valve heads. It is also the reason all NASCAR Cup and Xfinity engines are now running canted valve heads. You can thank Robert Yates for making the Ford Cleveland heads the most dominant heads in NASCAR and forcing the competition to make their own canted valve head.
Chevy released the big block Chevy in 1965 that had canted valve heads. The Cleveland came out in 1969. Who is copying whom?
@@andyharman3022 No argument there and the reason Ford came out with the Cleveland head is because Ford brought over GM engineers to Ford and the Canted valve heads found their way to the sb Ford. The reason Chevy did not go with canted valves in their sb is because thousands of GM racers and vendors have invested many millions in the Chevy sb. The RO NASCAR Chevy engine finally brought canted valves to GM's lineup and they still use some version of that today. You can't argue that the canted valve engine is not a better high speed racing engine but the sanctioning bodies will not allow a better engine to compete against the original sb Chevy design. Too much money invested. Many will argue that the LS is the latest and greatest engine from GM but that engine is a Y block with cross bolted mains just like the Ford Fe engines from the early 60's so who is copying who?
I think Bud Moore and Ernie Elliot had a bit to do with making Cleveland power as well.
Anybody who really knows anything, knows who copies who with damn near everything... One manufacturer has kept the other 2 stocked with fresh new, tested and proven, ideas to poach. Since they're often ahead of their time, and those other 2 always whine and get them banned from everything, which kills aftermarket support. And it's easy to throw tons of crap out there, when you don't have to do ALL the r&d...does the c8 remind you of anything? First one I saw, thought it was this car for like a minute.
There was gm sbc canted valve heads in 69. All ford did was copy stuff.
Don't forget the 2v Closed Chamber head Richard 😁 302c Version in Australia used them right through to 1982. There's also port tongues available for the 4v heads to help airspeed without reducing flow numbers. My absolute favorite engine and have built a ton over the years.
I scored a set of the Aussie 2v heads at a swap meet for $290 complete. I rebuilt them and they are still on my 362C with a Comp 282s cam and Weiand Axcellerator 2v intake.
@@nova467spanker the Weiand Xcelerator was a great manifold in its day, there are some fantastic alternatives now like the manifold RH tested, but also the Funnelweb and TFC manifolds that are made down here. AFD have one too I used on a4v build that was really nice.
Yeah! The Ford Motorsport catalog in the 80's offered port plates!😁
I believe this is the engine Bob Gloddon run through the late 70s and thru the 80s when he was winning all those NHRA championships in the pro stock division. He really knew those engines and how to get every bit of power out of them. Those motors dominated!
I needed this today. Love the "other guys".... Especially the Ford fun!
Very keen for more Cleveland action...
same here
Love all this Ford stuff keep it coming.
Great Video, I have a 351M in my 1975 Ford F100 and it runs so sweet.
STOP LETTING THESE PEOPLE KNOW I'M SANDBAGGING !! LS GUY'S ARE WATCHING THIS !!
Don’t worry lol A lot of one track minds typical heads lol All new to engines all they care lol.
What are all the best ideas of the Ford Cleveland engine? The Chevy LS. Thanks Ford!
Brings back the memory of Bob Glidden. Great stuff, Richard. I love the Cleveland engine and everything Ford was doing in 69-71. The architecture of that engine lasted for many decades even though the factory was forced to abandon it so early. Thank You
we were lucky enough to get the Cleveland here in Australia. they came in a wide variety of specs and configurations. bottom end of the series was a low compression 302 with open chamber 2v heads. at the top end we got the legendary (well in Australia at least) GTHO motors. these were 351 with high comp 4v heads an alloy intake manifold and a 780 cfm Holley. 4 bolt mains, 4ma-b crank and very aggressive cams. ford Australia had the Holley, the cam and many other bits made especially to their specs. they ran custom a custom sump, and extractors. ford rated them at 320 hp but where closer to 400 - 420 hp. usually mated to the good old indestructible top loader and a 9" diff. in 1971 ford went bonkers and built the Falcon 351 GTHO Phase 3, at the time it was the fastest and quickest 4 door sedan in the world and now are so rare that originals in good condition go as high as $1 million AUD ( so about $80 USD. lol). the race teams would pick them up from the dealership and drive them to Bathurst to run them in! then win first, 2nd, 3rd and 4th in a 500 mile race. it was 1300kg and 400 hp on old school rubber and suspension so they were a handful to say the least.
That M code was indeed a beast. Not even listed as a high perf version from Ford. I had 3 sets of these heads and a complete M code from a totaled 70 Mach 1. 300 hp rated lol. Long tubes really make a Diff on these as the stock exhaust ports were average with cast iron manifolds. If you machined the heads for screw in studs and guideplates(basicly making it a Boss 351 head) you could run a real cam in these with a single plane intake. Then you would see the real power potential when you can run it to 7000+ rpm.
I’m a Chevy guy and this was my favorite Ford engine. Basically a small block Ford with bbc heads. Even the 2v heads made good power with the right 4v aftermarket intake.
You are pumping out the jams today. Thank you!
There not the other guy here in Australia,In 1971 we in Australia could order a USA version of the 351 Clevland fitted our version of your Falcon (GTHO Phase 111), it was factory fitted with 4 bolt mains, large port heads , good rods, 780 holley , headers , it was rev limited to 6150 rpm but we reved to 7000 and over 150mph in "susposedly" standard production car racing, they were underated at 300hp however most agree it made around 380hp , Ford Australia produced there own version of the 351 Cleavland as well as a 302 version until 1979, our versions all had small port heads however the 302's had small combustion chambers making for cheap compression increase if fitted to a 351
That's GTHO Phase 3
I had a 71 Mach 1 4 speed with the 351C in it -- Made almost these same changes to except went to 12 to 1 pistons and a roller cam shaft -- Had all my Chevy friends skeered of me LOL -- They all had to go to Nitrous to beat me... But I had a glorious run for over a year .. My Mustang ran a best of a 10:48 at OCIR.....
Love the abundance of information you have and share ,,,, glad to see fords again!!!!
Hell yeah I love 351 Clevelands
I'd heard rumours that these engines (all V8s of this era) were under stated, but very much surprised by your actual tenacity to find out first-hand. Kudos and Bravo!
Built one of these as the boss version but spicier with all forged internals and every trick in the book.
With a four speed top loader and 4:10 gears it was a beastly combination.
These things can rev to the moon while maintaining a reasonable amount of grunt.
I’d like to see one under boost.
we're still holding our breath waiting on our BIG BUICK 455 EFI AND TORQUE STORM BUILD!!!
Oh, Hell Ya
Nothing like a 1970-71 Stage one 😎
I'm in love with my 1970 Mach1 with her 351C 4v engine set up. She is all stock and pure American Muscle. Amazing how you can change the cam and intake and see such AMAZING gains.
th-cam.com/users/thclevoking also has some good content if u want more Clevo stuff.
After a bunch of Ford motor research I chose the 351-C4v has my first motor build and of course it's still very close to my heart. I was 14 years old.
Mr..Richard!!!!
Let's see how this setup does with low compression pistons and BOOST!!!
Nah, keep the compression high and run E85 or methanol!
Hard to keep the headgaskets sealed.
I'm in the generator field , and I get to see turbo 460s all the time.
Slick little mill,it's not just a 460 with a turbo it's got low comp forged pistons and good stuff like that.
160hp at 1800rpms is the rating on them.
Industrial stuff turns slow , up to 2100 maybe.
I think 160hp at 1800 is pretty damn stout.
@@1magnit add head studs, O-rings and some good copper or MLS gaskets and it'll hold fine. Folks have been boosting Clevelands forever. And usually it's the tune that pops things...running too much timing. Pull back the timing, add boost.
10:25 very interesting sound
The 351 clev closed chamber with bbchevy sized valves. Horsepower potental is unlimited incompitition with todays motors. A work of art.
THEY FLOW 275 CFM STOCK-WHICH IS GOOD
I ported a 305 58cc 194 int and flowed. 228 at half inch an 233 at 600 lift. They could support a 350 at 425 hp. 275 wow loads of hp thanks rich you cured my curiosity .
These videos are just brilliant!!!
Very very cool.....thanks for taking the time to share 👍
Hey Richard Thanks for at last showcasing my faverite motor,keep going with solid roller cams and alloy heads
I had a '70 351 4V built to similar specs in a '70 fastback. With a close ratio 4 speed, what a beast!
Wow. Awesome interview. Great info. Thank you gentleman very well spoken. Please continue.
The 351 Cleveland actually came out in late 1969. I used to think it was 1970, but someone showed my a 351 C 4V with C9 casting numbers on the intake manifold.
This would have made a great Rhoades Fast bleed down Lifter test subject. Yes?
Thank you, thank you, thank you, for all of your super hard work Rich. I really appreciate what you’re doing.
Great vids. It is really amazing how few people understand the power made by unsung Ford & Mopar "grocery getter" engines. Really cool to see how much you have put into this series.
That is amazing with just a cam and intake! I never knew the heads flowed that much. Thanks for the video
Good valves and valve job will get you 290+ bowl job 300’s
A turbo with Cleveland 4V heads would be really interesting
I would make sure your block is machined for 4 bolt main caps, a steel crank and some good rods. And yes, look out
72 cobra jet 351c is better suited for this.
4 bilt main caps, lower compression...9.5;1
I got to help my dad with his drag race 351C in mid 70’s. We were running a Boss 351 engine with 12.5:1 pistons, Comp Cams solid lifter cam, tunnel ram intake with a pair of 660 Holleys with center squirters . 1 7/8 long tube headers. We were able to run up to Detroit and scrounge some “good” pieces from Gapp & Roush race shop like light weight valves and needle bearing fulcrum for the old stamped rocker arms. This was in a 65 Mustang ( car was Bob Corn’s “Cobra II” former Winternationals winner) with 4 speed.
I remember he was turning 8,500 rpm with it and running low 11 second times with the tires of the day.
My bad they were 2 1/8 in. tube headers
I had an H-code in a 71 Cougar. The only things I did were no name dual exhaust and no name open element air cleaner with BBC paper element. I think I also had to rebuild the factory 2V carb. It was by no means a “muscle” car, but even the 2V heads on pump gas would pull higher-than-healthy RPMs (and power) with simple breathing enhancement. I’ve read a lot of articles and more recently watched quite a few videos on building SBFs for HP. I have concluded that many of the “journalists” were biased to start. I’ve never driven a 4V 351C, but might have to make it part of my bucket list to build one and something to put it in. Great video!
What a great video. I love the Cleveland, but was actually pleasantly surprised at how easy it was to gain so much power... The Boss 351 had 11.7:1 compression. Much thanks to you. I look forward to seeing the results of your Boss 351 experiment.
Gr8 video Richard, have always liked the 351C. Very interesting finds about old school engines.
👍👍 thanx for sharing your knowledge.
It is greatly appreciated.
The Cleveland is the bad boy in the FoMoCo line-up. They finally went to a great head design and a stouter bottom end. A big camshaft and proper induction produces super power in a light package.
I’ve heard the name ford Cleveland before, but had no idea it was so awesome. Thanks for sharing.
I'd love to see how a 351 windsor runs before and after turning it into a clevor, and maybe a lil k-code 289 action on the side
Amazing how many people believe that a Ford cannot make 1 hp per cid on an engine dyno even with good heads.
Back in the day I built and raced a couple of 351C engines. They were awesome
If anyone cares, the flowbench numbers Richard is talking about should raise a few eyebrows. The Cleveland head is flowing more air than a stock LS1 that would come 30 years later. The LS1 achieved it's numbers with smaller valves but it also had the benefit of decades more experience and technology. The Cleveland is an impressive beast.
I need to see the one on the Boss. I just picked up a 71 351c 4 bolt main, quenched 4 bbl heads. Was told it was a cobra jet out of a 71 Mach 1. Funny I'm putting it in my 71 Mach 1 clone (original fast back car). Need to find someone to build it right in AZ. Have a 74 Gran Torino Sport with a 351c with 2 bbl heads and installed Edelbrock 4 bbl intake with an Edelbrock 650, tried to match my 74 Torino I had in 78 in High school. Fun cars and great motors!
The 351C M-code is my all-time favorite muscle car engine!
Man, seeing all of these old school muscle car stories and comments really makes me miss my old 74 Camaro with a 400 that I put a Edelbrock dual tunnel ram with two Holley 750 double pumpers up top and velocity stacks out the hood, a Muncie M-22 Rock Crusher 4 speed, 4.11 rear end, and 19" Mickey Thompson drag radials. That thing would stand up on the rear wheels. I called it Fatal Attraction. I had it air brushed onto the rear panel along with the old school Chevy block and the Heartbeat of America. I have always wanted to build a 67 Camaro SS with a high compression DZ302, or an all original 70 Boss 302 both with a 4 speed of course, and make those legendary small blocks outperform big blocks. Man, if I wasn't stuck with a high horsepower, high dollar value Honda that I could NEVER sell for what I have into it, I'd go after that dream.
Yes Finally! I've Been Waiting For A Video Like This On TH-cam!! I Have A 1970 Mach1 M CODE 4V 300HP As Well!! Completely Stock & In Its Original Condition.!! Cant Wait To Build It!! Thanks Richard 👌💯
We had a 1070 Torino with the optional 351C thanks to dad. It was the family 4 door hauler, but it sure hauled A$$!😊
I absolutely love your videos and the "truth" of all the ratings that were put out back then. I ran a flow bench back in the 90s at a shop (we were making something else for Fords mainly but flowed some heads here and there) we saw a set of cleaned up 2v heads that killed all the Trick Flow, Dart, GT40 etc... and after seeing the Windsor 351 eat up bearings (at consistent high rpm usage) because the crank has too large a journal diameter I couldn't understand why the Windsor not the Cleveland was produced so much more.
Good work Richard. We love the 351c in australia. Strong engine.
Love, love, love this video!
The NHRA uses factory HP ratings to identify specs for certain engine combinations, years of availability, and body styles. It has nothing to do with actual HP on a dyno. Great video.
Good job as always 🤘
Very interesting clip, Richard look forward to watching more now I've seen that one.
That engine was no secret to a friend of mine. He ran Clevelands in his semi late dirt track car and cleaned up for years. Great engine. One of the few engines ford mass produced that made very respectable power. Until the awesome coyote of course
The design criteria behind the Cleveland was a mass produced engine that could make 500 hp at 7000 rpm when prepped for NASCAR. The rule changes favored smaller engines, and Ford didn't want to make a special engine like the Tunnel Port 427 or Boss 429 engine anymore.
We ran an 1971 351c in high school. Nobody could touch us as I recall, we blew the doors off corvettes even. Still have my 73 2bbl 351c mustang convertible in the barn waiting for some love.
@Richard Holdener: Your summary and salient points are spot-on. Im lucky enough to have read all your LT1/Boss 351 and 289 Hi Po and DZ 302 vs Boss 302 tests. THIS IS THE BEST VIDEO OF 2020.
thnx
Yessss! We love Cleveland’s in our household!
Had a '73 Gran Torino Sport with 351C 2V back in the mid 70's. Engine always ran great, but later on decided to rebuild it with 4 bolt main block, closed chamber 4V heads, cast iron intake with Autolite 4V carb, building it to 1970 351C 4V specs. Added Hooker headers, and enjoyed this combo very much. Great mid range and top end. Wish I still had this car!
Over 25 years ago when I first started to get into technical specs of engines, I noticed the 351C appeared to really stand out and I was always baffled by the fact it wasn't more popular and the horsepower rating didn't seem to reflect the advantages. Awesome to see this video after all this time!
It wasn’t more popular in the US only because it wasn’t around very long in the US. Ford dumped the Cleveland engine after 1974 (in the US) in favor of the more truck based 351 Windsor. Ford only used the Cleveland in the US from 1970 to 1974.
Great job thanks
The "M" code for this engine meant "Michigan Casting Center" as seen in the block cast stamp on the rear block near the oil pressure gauge take-off. The increased demand for the magic "351 ci" displacement at the time (1972) required Ford step up production using it's Detroit facility. The 351M was meant as a supplement to the 351C, modified from a 400ci engine using the taller block and rods, and a lowered pin location to fit the 351M piston design. And of course, a Windsor crank.
Incidentally, the 351-400M engine design as it was referred to was a strong engine, with minor oil delivery problems to the mains. But with minimal oiling mods the 400M gave outstanding low range torque, perfect for 4x4's of the time. Especially with the no-extra-work-needed massive 2.05 intakes and cut to fit intake tunnels requiring little head work for proper mating. A strong and highly under rated engine built for low end torque. A real brute. Leaving the 351Mto fade into obscurity.
i had one of these 1970 M-codes in a 1969 mustang for awhile. bone stock with a small holley it was quite strong. a friend had one in a '70 mach 1 stock except for 750 holley dp, mild hyd cam, long tubes, electric water pump, C6 trans, mild converter, shift kit, junkyard 4.11 chunk and slicks. ran 13.07 @ 107 mph at the Bracket Nationals in gainsville, fla in circa 1979. not fast by today's standards, but at the time it was respectively strong.
thank you Richard
Hey Richard, the methods you employ for testing are the best around. The “before” test is done as close to OEM specifications as the current availability of stock parts will allow. The modified test uses a well balanced combination of parts that are readily available to anyone wanting to duplicate your results. You obviously realize that bigger isn’t necessarily better when selecting induction and cam components for practical builds. Unfortunately there are millions of clueless online builders that still don’t have a clue.
It’s a welcome change to see something other than all Chevy ALL THE TIME. Especially in the selection of a “M” code Cleveland. I’ve had possession of my 1970 M code Mach 1 for 37 great years. I don’t even try to explain what a M code is to the guys with a brand X mentality. As they watch my concours correct tail light bezels disappear into the night, they get the message loud and clear. The first clue should have been the Ram Air Shaker Scoop shaking excessively to the tune of a radical solid roller cam. 😉🏁
You’re doing a helluva job Richard. I sincerely appreciate it. And the beat goes on....
Back in the day I had heard that the Cleveland had really big ports and I was told that they were to big to have good throttle response on the turns but I never seen a down side from good cylinder heads . My experience was you can run smaller cam and still make good power . I build a 302 back in the day lol with a set of heads that was used in the car that set the record in G Gas and my motor although did not make that kind of power was every bit as good as expected and that showed me that money on a NA motor cylinder heads is on very important part. After watching Richard I now believe a turbo motor is a great way to make power.
no arguement on this end about 351C potential. A neighbor purloined 1 from his new Ranchero. Then built it to 400 hp level with parts spected in a FOMOCO 'Power Manual' available at the time. Then stuffed it into fairly new looking 65, 289 4spd Fastback Mustang. Ya, the shock towers had to be cut down , etc. I went on many ride alongs as he destroyed and fixed the rest of the driveline one by one. Top Loader replaced the broken OE 4spd. Then a stronger driveshaft replaced the pretzeled one. Broken teeth forced a 9in locker to replace the 8in OE axle. He named his 1st son Zebulon Mustang in tribute. And still has the car today.
While stock cars with this motor were lackluster on roadtests after repairs I'd made as a dealer Tech , 429 T-birds were veritable rockets in comparison. Probably a better match of Hi Flo heads to displacement. As Prof H's mastery of the Combo shows us in this vid pulling 450+ hp basicly from a cam change.
I've read the Ausie 351c block eliminated the 7-8k rpm cracking domestic castings occasionally suffered.
I'm a Ford guy loves these videos!
Love the content! Especially the Ford stuff. Would like to see more comparisons between the Windsor and the Cleveland. Would also like to see a modern 400 cubic inch Clevor street/strip type build and how it would perform. Thanks for all the great content!
11.0 to 1 compression, intake valves the diameter of beer cans and the largest port sizes of the era. Simple but powerful, and which is why they were so well regarded in drag racing, where maximum power at maximum RPM is crucial.
I have a stock 71' 351C 2V with a four speed on the floor dropped into a 1953 F-100 P.U. Truck. I suspect one of the previous owners was drag racing with the truck, because getting out of 1st gear the clutch shattered really bad, unless you feathered the clutch peddle just right. That engine gets that Truck across the 1/4 mile pretty quick. Fun but crazy, with a bad clutch, worn out 60's for tires, 1953 standard steering with 6 inches of play in the steering wheel in both directions and standard brakes. I have since replaced the clutch, the king pins and put some 70's on the front for tires. Now to do something with the steering for safer driving. I'm lucky I didn't kill myself with that engine and Truck when I was 20 years old.
Ford guy here. I'm building Streetable (ish) endurance racer and will be using a 351C 4V CJ, with a
rare Bud Moore engineering intake.
Will be fun project.
Doing my research and checking all Cleveland related content on YT.
Great video and keep them coming.
Very cool! Bud Moore FTW
you nail. many heads mate! keep doing these videos!!!!
Perfect timing, The 1970 351C M code shortblock is on the engine stand now. New valves, beehive springs, standard bore forged pistons, pocket ported heads with adjustable valve train, several intake choices but have not chosen a camshaft yet, looking at upward to 7000 RPM so can't wait for your solid cam selections!
Great video!!!!
Nice work!
I had one of these engines in my Torino. That car would really haul ass. My buddy had a '69 Camaro and always wanted to race me until the night I took him for a ride. He never mentioned racing again.
I wish my friend understood this when we where young men I beat him every race we raced between my 1970 cougar 351 Cleveland c6 tranny against his 1971 Camaro sbc 350 the Cleveland numbers were hard to beat with any motor it came against, boy I miss that car so much.
Loved my cyclone 1971. 4bl,4sp.posi rear. Awsome
Great work
I would love to see a 340 mopar pushed hard
love to test a 6-pack 340
Luv it Richard! I always wanted to do a stroker clevor as the windsor has more stroke capability and blocks are easier to find. Even a set of aftermarket heads from Tfs or chi or an old set of svo aluminum’s would be righteous
And just think about different headers?
O'brien truckers make a truckers series piping which use a larger i.d. tubing from the exhaust port about 6" down transitioning to the original dia. Tube
For example 2" down to 1 7/8 ".
Used with fact. Cleve 4 bbl. Heads, you could add a greater vacuum outbound
Greater scavening with a large overlap cam could add better horse pressure.
That's a tip for Richard to think about.
Thanks, Rich.
Good mill in good trim.
BRIAN.
351 Boss was the boss..I had a buddy in HS that had a '71 Torino GT Drag pak..That 351 Boss was a screamer. I can remember in the mid 80's porting and welding these heads for some of my NASCAR friends...Wish I still had them...Keep posting up the good stuff!
In 1988 I bought a Candyapple Red 1969 Fairlane Cobra that originally came with a Ram Air 428SCJ, 4-speed with a 4.30:1 Drag Pack. But all that was missing and someone stuffed in a 1970 M-code 351-4v with a FMX automatic. I pulled the 351C rebuilt it and still got it. It will eventually make its way into my 1970 Boss 302
CJ Fairlane is very cool-even with a 4V C
Great vids, you definitely know your stuff. I'm hooked
Hot dang I love this stuff!
I installed a set of Rhodes lifters and the comp 284 cam. Great part throttle response for normal driving and 400+ horsepower when the throttle is floored.