Dyno Testing Our Mondello 455 Olds Big Block - HorsePower S13, E8
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- เผยแพร่เมื่อ 25 ธ.ค. 2020
- After launching their classic Olds 455 engine build at the homebase of "Dr. Olds", Joe Mondello - Joe and Mike finish their buildup and test results on the engine dyno. Plus, another budget-friendly tech tip.
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R.I.P. Joe Mondello.. a true master.
I remember a couple of cars back in the early 70's that had nothing else added but a set of Mondello Heads. One was an SS Chevelle that smoked everything on the street. Mondello Heads were the top of the food chain in those days...
I rem when AFR came onto the scene and they had a competition between Mondello and afr...and afr heads absolutely smoked mondollar...and that's when he saw the light and got a flow bench ... he butchered a lot of olds heads before he got smarter
Joe Mondello total OG Legend.
I've got a '75 MrEd jet boat with a Mondello Olds in it. Brutal torque at any RPM .
I wouldn't have it any other way.
When you installed the cam you said it was a hyd roller then later installed hyd flat tappets
Saw an episode of "Nicks Garage" where the Performer intake was holding up the show. Put a stock on on it and gained substantial power.
Terry Petty, those huge cast iron intakes make great boat anchors too. lol
I saw the same episode, i saw very different results
@@baddonkey6876 which episode was it
You should pay attention. Because you are wrong Nick thought the stock one could make more power but he was wrong the performer made more power. That was also on a small block olds.
The Performer intake on "Nick's Garage" was NOT "holding up the show", and he ended up putting it back on after he tried the stock intake. Watch the episode again, and you'll see...
Favorite engine ever. Great job guys!
The only problem with that 455 is it supposed to be metallic blue and not gold, the gold was reserved for the 350 rocket.
Depends what year.
@@patrickstearns7958 No Olds big blocks were ever factory painted gold. Only small blocks. Some early big blocks were Bronze, but never gold.
Wasn't the Hurst Olds motor red?
'68, '69 Hurst Olds 455s were red. '70 - '76 455s were blue metallic. I've seen several pre-'70 Toronado 455s painted bronze.
@@davelowets pre '70 the motors were red. Not gold in the '70's they went blue the small blocks were gold...
You still didn't reach 1 h.p. per cubic inch.... A .030 overbored Olds 455 is 461 cubic inches. 456 h.p. isn't 1h.p. per cube. 🤔
My .060 over 455. with steel heads made 525hp. MSD ign, Crower valve train, heavily modified heads, Willys carb, homemade intake.
Engine dyno or Chassis?
@@superkillr chassis. Pro built Th400. Cannot for the life of me remember ratios though. Had a lot of help from Mondello back then.
I had a 1966 425 punched 40 over with the W-30 stick grind camshaft custom ground becouse of the bank angle all aligned honed, balanced, and squared up with Edelbrock Torker intake, Coles true roller timing chain 11:1 forged pistons, and "C" heads that we're totally reworked and I was putting out 525 HP as well had 400 Turbo manual valve body with 2-speed jet-away transmission from small block 330CI. Tork converter installed into the 400 turbo transmission rewired the switch onto the shifter down for low stall & up for high stall on the converter high stall was 3800 rpm low stall was 2000 rpm with the 5:56:1 posi shifting into second Bourke loose and fish tailed sideways shifting third was about seven feet of rubber with 30" tall street tires...
Import guys might laugh at those horsepower numbers but they are ignoring the torque numbers
RPM cylinder heads and you're using a performer intake instead of the RPM intake you would have made more power
My Olds 400 engine currently 442 ci, 9.6 to 1 compression, custom lunati roller cam, stock heads, and a tri power intake makes 469 hp and 531 ft-lbs of torque. I wish they would have included the compression ratio. I doubt it was less than 10.
Olds does make a great engine.
This was an awesome build!!!
The legend in action
Needs more carb plus a 1" spacer, 2 1/8th" headers and collector extensions.
Cam must be pretty mild. When the camera zooms in at the end you see it's only at 4700. You'd think with the hassle they went to they be aiming more like 5500. Needs a different cam and then carbie and headers to suit.
But pretty impressive to get 1:1 at that low revs.
2 1/8 headers is WAY overkill for this engine, and would do nothing for horsepower, but would kill torque. My Olds 468 runs in the 9s in the quarter with a set of 2" primary tube headers.
A 1" spacer wont do much on a dual plane intake either.
Good stuff
455 is a massive engine..my 73 Sidewinder jetboat has a 70 olds 455 in it... Berkeley 12jg jetpump..AA impeller..
It runs around 75mph...it does aight
Best channel 💪😎👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍
hammering engines together at its finest .... :D come on guys
I made more HP. from my 1966. 425 punched out 40 over used mostly factory parts gouged pistons, Coles True Roller Timing Chain,
Custom Ground '70 W-30 Stick Grind Camshaft 328 degrees, Reworked the 'C' heads totally blocking off the heat under the intake manifold and filling in the siammized center exhaust ports, I used Oldsmobile HIE Distributor that was Reworked as well, Edelbrock Torker intake manifold, block was squared up, aligned honed, and balanced, as well as oil restrictions and rods ground for oil relief and crank cross drilling and chamfered, the block was also debuted and oil gallies all smooth out so oil would drain back into the pan faster, also used '70 Oldsmobile Tornado 5 quart oil pan.
I put out 525 HP
Back in the day I saw a Olds build that used ported stock heads and an Offy port-O-Sonic single plane intake that made 455 hp, without a ton of cam. I’d lean towards that intake, but keep the Edelbrock heads and bigger carb.
Yep. The Offenhauser Port-O-Sonic is a good intake for a fairly stout Olds big block. If you build an engine for more h.p., the Port-O-Sonics bigger brother, the Super-Sonic is a pretty good intake as well if you are running a Dominator carb. My 468 with extremely worked over Edelbrock heads, and a port matched, worked over Super-Sonic with a 1050 Dominator runs 9s in the quarter mile.
I HAVE BUICK PARK AVENUE ULTRA. IT HAS A SUPERCHARGE BUICK V6. ENGINE. HAS ANYONE DONE A REBUILD ON THIS ENGINE. ARE THEIR ANY PERFORMANCE PARTS FAR IT.
What cam are they running ?
YesSiRr!!😎😁😊👌👊🔥💯💯!! Made it!!
They never used to make a performer RPM for the Olds. Just the Performer. Good news is they do now. I think it would pick up 20-25 hp and lose just a bit of torque down low
I would use a Torker intake on that engine all day. It would help the top-end for sure, and who cares if you lose a little bit of that huge torque.
@@davelowets I’ll give you that. Last Olds I built I think I used a Holley single plane? I could be wrong. I’m old and it was a long time ago
@@canabox7112 Holley made the "Street Dominator" single plane intake for an Olds a long time ago. Perhaps you had this intake.
I'm an old Olds guy also.
You didn't mention machining the top of the rocker stud FLAT to ensure the poly-locks don't loosen during operation.
Not needed... I've run my engines for 25 years without doing that, and never had one come loose.
@@davelowets My 403 build had the crane cool nuts along with comp roller tip rockers and the cool nuts backed off on it.
Honestly, I was underwhelmed by the build especially with the aftermarket aluminum heads used. From personal experience, the standard Performer series really aren't much better if at all better than stock. Using a RPM Airgap would have been much better. Also, I'm thinking the wrong cam was chosen for this. You should have been able to easily get 500 HP+ out of it and still be streetable.
Im thinking the same thing brother lol
I'm really surprised that they didn't try the usual thick carb spacer to increase plenum volume.
It would have helped for sure. Thing is they now make a performer rpm for the Olds. It’s a way better intake
Wouldn't have helped much on a dual plane intake.
Hahaha that painted seat looks horrific!
Hows the Buick 455 differ from the olds?
The Olds, Buick and Pontiac 455s are all different designs from each other.
Completely different and Buick is the lightest of them. With an aluminum intake and heads the Buick is in sbc weight range.
About the only part that will interchange is the distributor cap
@@mattrodgers4878 and maybe the alternator...
is this motor a nail head?
Wrong motor . That's Buick
Repost, but I'll take it.
Hmmm, IDK about this build. Lots of questions
Find yourself a quad barrel carburetor my 455 loved it but hey it was a every day diver
Both those carburetors they used where 4 barrel carbs. It's about the cfm it can flow they started with a 750 and it wasn't enough so they had to step up to a bigger cfm carb.
@nobrakes425 the summit 750 is just not a performance carb...a 455 olds turning 5200 rpm is barely using 650cfm..
why use vac advance. mechanical advance would let you shoot total time.
510 ft lbs, 1970, 455 olds. This engine held the factory torque record untill Dodge released the Cummins diesel pic up. Also 510 ft lbs.
Sorry but that was a Buick 455 not Olds I love all 3 455 makes but Olds is my favorite
Well if you’re happy then we’re happy
With that much displacement you guys should have used at least 1 7/8 primaries if not 2 incher's
with alloy heads and modern combustion chambers you can run 11.5;1 comp,, i would have put a $1500 scat crank and rods in it. it would run 500= easy. Hyd Roller cams are useless.
13:00 MIKE MUST BE SMOKING SOMETHING . NEWBI PROBLEMS FROM ASSEMBLY.
9:12... wipe out the cam and then the plug wires and it’s running like shit , you line up your distributor with the slash you made on disassembly, if it’s not factory marked
@@dennisford2000 Huh? 🤔 You should NEVER "line up a distributor with a mark made during disassembly". That's what a timing light is made for, and is the proper way to time the engine.
Looks like they could've ported the heads alot better.
How not to break in a cam. Don’t double check that it’s ready to run then shut it off after a few seconds of running after the cam lube has washed off of lobes.
I laugh with their commentary. The same carb used on the 460 but this one is more performance oriented. Lol
A Joe Olds....
A friend had 455 Old in a 1971 Nova. The highway patrol clock him at 120 in the corners and 140 straight aways . The quarter horse could not run him down!!!!! Had about 500 lbs!!!!
Liar.
Hydraulic roller cam with flat tapit lifts why would you do that
Not possible, and they didn't.
He lied. Must be a mild cam too, Not a Comp fan here.
@@sandyshoremann7524 He probably just misspoke.
Im tellin you that distributor is junk, we did a simular build but used an msd 6al box with a msd distributor and got between 485-490 hp
Yeah definitely needs a proper curve with complete rebuild
Or just lock the distributor out, and use an MSD 6AL-2 programmable. Best thing I ever did on my Olds.
Wiped that cam out ....
There's no way to tell from the episode if the cam was wiped or not.
When I purchased a 455 from mondello they told me I was going to get 550 horses, not only that it leaked oil had nothing but problems
Oil
Leaks
Distributor
Sticks
Motors
Obviously
Broken
It
Leaks
Excessively
Sorry but that engine is bored out so you came up a horsepower short. LOL
Actually, 5 h.p. short. A .030 over 455 would be a 461.
Ok
Those factory W-30 Olds big blocks were rated at 510 ft lbs of torque. You didn't do much with torque but match the 455 Buick. HP is up, were really missing out on seeing the comparison between a Factory W-30 matching your build in the same car on the same track. Wonder what the 70 more HP in your build vs. a Factory W-30 would produce in the same car on the same track far as ET under similar conditions? Good results with your build but I expected more. You should have put one of those 4.5'' stroker Olds cranks in it and had a skilled porter re-work the heads. That's what would have impressed me. I'd give your build a C+, an average accomplishment. Think the Stock W-30 was equipped with an 810 CFM Quadra-Jet, I don't remember right off the secondary metering rod factory code, WW/WT maybe? Knew right off, the 750 wouldn't get it. When PSI developed their SCREW-BLOWER many years ago they used a Big Block Olds to drive it on an outdoor test stand to study and develop the PSI's maximum output performance. The 80's.
Are you saying Joe Mondello is not a skilled head porter? I thought I saw him porting heads in the previous video.
@@marcmo7138 You're replying 11 Months after my post, who would imply any such a thing? appears you're just making an effort to put words in someone elses mouth.
@@Nobody-ld7mkWho cares when I reply. I read your comment and replied. If you don’t want a comment, keep your thoughts to yourself.You said they should have had a skilled porter rework the heads. So I’m not putting words into anyone’s mouth. Just replied to someone who clearly knows absolutely everything and loves attention. Good day Professor.
@@marcmo7138 My reply was in reference to an available skilled porter of the time, Mondello is deceased. Put two and two together for Christ's sake. You're just somebody looking to start some c*ap. Jerk !
Olds w30 came with a 750 Rochester.. the only motors that got a 800 cfm Rochester was a very small number of pontiac 455 super duty. All Rochesters are 750cfm..including the ones on the 305..they just adjust the airwrap on the 2nds... the 70w30 made 440hp with headers..and barely 400hp with the W log manifolds.
Out of interest, why are American v8s over-head valve engines instead of the European trend of Quad over-head cam V8 engines?
Because keep it simple stupid
@@jasonhooey5677 fair enough.
Ford has been using OHC V8 ( Modular 2, 3 & 4V and later the 5.0 Coyote) since the mid 90s.
@@fishsquishguy1833 nice, I was just fascinated as a Brit everything over here and in Europe has been over head cam for years.
Pluses and minuses for both I’m sure.
@@shaunsummers2762 There are pros and cons to both. Pushrod 2V motors favor low end power while DOHC motors favor high end power. Pushrod motors are very compact for their displacement so if you want low end power for towing and smoking tires they are the way to go. Ford for example just released a 7.3L Pushrod motor just for their heavy duty trucks.
or you could pick up a junkyard 6.0, throw in a "stage 2" cam & springs & make just as much power (if not more) for 1/3 the cost. I do love the "retro" big blocks, but it's just so easy to make power with the new motors (Gen 3 Hemi, Coyote, LS/LT).
You simply can't compare the torque of an lq4 with a 455 cubic inch big block. Some guys just want torque.
I have to admit, Coyote & LS engines have spoiled us to the point I think a lot of us were disappointed with "only" 456hp. My how times have changed!
That's exactly what I did sold the 68 olds and got 2 c10s 65 and 70
Not true at all..i bought set of elderbrock heads from Mondello and they was to have been stage 5...but they was just plan heads no port or polished at all...and besides the china or ebay parts the sell you....straight garbage
You dont polish anything in the intake runners or valve bowls . Yall should know this . Also no catalytic converters ,,, no mufflers ,,,,,,,,,,,,,,,,,,,
What is this, amateur hour? I knew the 750 was too small right away and 456hp from a full build on a big block is schitt.
?.hmm
Stock stage one is 500 ft lbs....what gives...?....
Because when you add a big lift cam torque usually always goes down but horsepower increases
Do all that to Chevy 454, you wouod see 500 HP and 550 ft lbs easily.
Want to debate wasted money ,? Aluminum heads ? Porting ? Degreeing cam ? Aluminum intake that is a copy of stock ? No air gap ? Unmassaged aftermarket distrib, weights ,noizy aluminum rockers , no bathtub intake gasket ? ( Cools Intake from bottom essential when air gap style Mani , not used ! ) Rebuilt short block , bigger pistons . Not impressed with it for money spent $$$ . I be seen this trend with Pontiac builds as well . That much spent and little difference from stock 455 with 9 to 1 and a camshaft of 500 lift & ,290° D, throw in wrong headers for a 350 cube model and get SAME RESULTS EVERYTIME ...MANY OTHERS KNOW THE SAME THING ! DOES THE PERFORMANCE OIL PUMP ROB THAT ENG, OF MISSING 75 H.P. YOUR NUMBERS ARE MISSING ? WHAT WAS THE V/ E RATIO OF THIS SET UP THAT THING SHOULD DO ALOT MORE FOR THE INVESTMENT MADE...
Yeah seems like something is still off. 1 hp per cube with all those parts isn't great.
Spot on! My 76' block ,70' "C" cast heads , 70' W-30 stock stick shift cam w/ w-30 alum intake + 1"wooden spacer, recurved HEI, module , H/O coil, 850 spread bore holley DP . 11.57 w/ 4spd n 4:56 spool @ IRP in the late 80's Oops almost forgot ,11.00/1 + .040 alloy pistons/ ceramic rings.
The cam, intake, and headers were the killers of power on that engine.
Every engine built by these guys is a turd.