Low tension rings only gain you about 8 HP. Engine Masters tested this and that's what they found. Not worth the oil consumption and ring coking issues. Remember Audi with their 2.0 Turbo engines needing their pistons and rings changed after about 20K miles? They used low tension rings in those engines. Funny how the oil consumption went away after they installed new pistons and standard tension rings. You can pick up 8 HP by advancing the timing, a cam change, roller rockers if it didn't already have them, or installing a good set of headers. The rocker arm change they are doing probably freed up 8 HP. That engine won't last with a power adder on top of it. They'll be tearing it down for a ring job after 25K miles.
My engine builder built my 427 in 1983 and he was against nitrous or anything else and said “You want power available all the time so it’s always there” he also had me use lower compression pistons at 10.25:1 so I could use pump gas and it’s still running great 40 years later. It’s got a lot of power and surprised everyone including a policeman who I outran in 83. The builder made everything work together and was a master in tuning. It’s in a 1966 Chevelle which was my first car.
Excellent work guys ! I’ve always wanted a 427 and love working on performance engines, this video gives me some confidence that I can learn what’s needed
I have the factory medium-duty version of that engine sitting in my 1974 c65 Chevy truck except for 8 years and all I did was pull the carburetor off clean the carb and put electric fuel pump from a gas can to the carburetor in it fired right up and drove home
Great video. Precision multi angle valve job has to be the most complicated way of saying. 3 degree valve grind ever. Just having a little fun guys. Keep up the awesome content.
Hey I defended you guys the other day I was talking about liking your show and he said well yea but they have all the tools in the world I explained to him that it takes years of experience and you must be very smart to use all those tools
i been getting the 450 hp 454 with the 02xx trans for free from 6,000 to 58,000 miles on them that is with a stock carb and intake with high flow heads they come with steel crank heavy rods 10.5 to 1 compression but if u change the intake and put a 850 it really comes alive
I'm currently trying to build a low-budget 454 bbc from an early 90's 1 ton Chevy dually. I have found that it's a factory roller cam motor which is a plus. I'm going to try to do most of it myself seeing we no longer have a local machine shop around. I'd like to get between at least 350-375 to possibly 425 hp out of it. What would you suggest for a good cam choice and intake? I'm certain you would say 1st thing to change the pistons. Small dome? Thanks! I love your channel!
I have a 427 in my 66 Chevelle that an expert mechanic built for me in 1983 and it still runs great 40 years later. I outran a policeman and all but 2 street racers. One had a pro bracket car with slicks and I was catching him. I never have traction when I take off with skinny street tires. Did you rebuild your 427?
I had a L 88 back in 1975, it was balanced and blueprinted. I could turn that engine to 7500 every time I wanted. Even missed 3rd gear once and the tach went to 8000. It was the best rat I ever had. It lasted 4 years, and when I sold it the guy ran it a couple qts low on oil, and ruined it
How's come no matter how many swap meets I go to There is no way in hell I could EVER find a GM Crate 427 like that one in that good of shape for 3500.00 bucks ! sheesh.
Dont know if you answer such. How often does a head need resurfacing when dismantled when otherwise properly working? So when before dismantling it shows no signs of warping.
I got a really interesting question and it's not as dumb as it sounds. I noticed you polished the top of those Pistons which is a good idea. I'm curious about smoothing the edges of the dome. Instead of having sharp edges is most of those don't have rounding the edges a little bit. Would there be any advantage to that? The main reason I ask is I'm not a big fan of those domes in the piston. I prefer a flat top piston but with that 24° valve angle that's a little hard to do to get compression ratios of 10 or more to :1
Can you educate me on the advantage of building a 427BBC compared to an LS of the same displacement please? I'm always surprised when I hear anyone building the old style engines these days. Seems to my ignorant mind that the reliability and affordability combined with tremendous horsepower potential of the LS would render the older engine format obsolete. Curious to hear your side. Thank you in advance!
Not enough to warrant oil burning and coking issues. Audi used low tension rings in their 2.0 turbo engines. Every one of them are smoke machines. They finally fixed that problem because they got tired of paying for customers to have their pistons and rings changed. You can get 8 HP by simply advancing the timing.
Hey guys I'm putting my bigblock 427 60 over in my 88 monte carlo SS what headers was it that were used on the monte carlo you guys built I am also going to use your trick on notching the a/c box on the firewall if you could give me the brand and part number for the headers I would really appreciate it thank you Rick427.
Does it make much difference to polish the ports to a mirror finish vs. just smoothing them out? Wow I miss working on a rebuild, almost 30 years, that's what happens when you have children.
Umm, there is a faster easier way to get these numbers. Since CC is the only measurement we care about, then just do that everywhere, all the time. You can calculate the head gasket from pie, but everything else is a simple physical liquid measurement and there's your answer. Take that numerical value any way you like, but food color and alcohol is the best way to CC measure anything that requires a specific measurement at ambient temperature at your current level of specific gravity! Cheers 🍻
Get yourself a diesel engine for that task. Nothing's more enjoyable to tow with than a diesel. So much grunt right down low, it doesn't need to rev and scream like a gas engine.
@@Warrior_Resisting_Colonialism I hear ya but this motor would pull the fck out of a trailer aswell and a diesel doesn’t sound nearly as good as a screaming V8
@@hillybillysillysally5086let's not forget the joys of diesels having DEF crap. $300+ oil changes. I'll stick with a gasser over a modern diesel anyday
@17:04 It's not motor oil! Show me a single "motor" that requires oil, and then show me where it goes! These are ENGINES, not motors...... Engine is internal or external combustion. Motor is electrical, always! Don't believe me? Go find me a power window engine! How about a windshield wiper engine? Oh, I need a new engine for my ceiling fan in my kitchen. They are not all motors despite the fact that they all create a motive force! Engines are defined by what they are, same as motors, but they are NOTHING alike! I do expect you to know better by now. Enough of my noise. Cheers 🍻.
Larger electric motors certainly require oil. Also, why is detroit called the motor city? Why are motorcycles called what they are? Relax, the English language is not consistant.
@@crissd8283: Oh yes, I knew how badly I screwed up right when I hit that reply button. Normally I write a draft, I proof read and then submit. This one I'm passionate about and I went a bit hot and fast. But I want to say here so that I don't have to say it a million times more: I did not create the English language. I simply do my best to use it correctly every day, even when I intentionally use it wrong! Cheers 🍻.
You are professionals, there'sno doubt about that! But.. there's also one big but here. 99 percent of mechanics lovers can neither understand nor apply in reality what you teach. So this whole program is one huge sales channel...
That depends on how well the oil and filters are changed. You could have military grade bearings ( I'm being sarcastic. ) and if you don't change the oil regularly, it'll start knocking before too long.
Wtf is the point of buying a hopped up crate engine if you’re just going to change half the shit that makes it a special crate model? Why not just start with a factory stock block at that point if you’re just going to upgrade all the upgrades shit already in it 🤷♂️
I wonder about itemized price to buy the "keeper" parts individually. Could it be it's actually cheaper to start with a complete engine? I also wonder why anyone would go to the expense to build a BBC or SBC when the LS engine family is so readily available and makes so doggone much reliable horsepower.
It's always good practice to do a tear down of any used engine you buy that you don't know its history. At most, all I would have done was install new bearings, reassemble it and stab it in to whatever project was going to receive it.
@@drewt3210 People who are restoring a classic car that had a 427 would do this. This engine drops right in versus the more expense of buying LS swap parts, and or custom fabrication. Ideally, you want a numbers matching car for the most value but a period correct car is the next best thing. I mean LS swapping a 67 Corvette would be cool, but ultimately more expensive than stabbing in another 427, and removing value at the same time. Now if you're doing a rat rod or restomod then the LS swap can come into play.
@@TwentytenS4B8 the wear and failure items aren’t what I’m talking about. But the cam, rollers and lifters are part of why that engine was worth anything to begin with being upgraded from the crate already. Again why buy a hopped up motor if every part that makes it hopped up over a base factory motor is going to be taken out snd replaced. That’s like buying a brand new home just to tear it all down and build a new one. Instead of just building it how you wanted it from the get go instead of buying already built plans or buying s junk fixer upper
Thanks for telling people to wait to change their oil, keeps us in business. Please tell people more stupid things, like they only have to do it once a year and don't need antifreeze in the summer
@@2aminitials yes, you did hear that right. I was really just busting their balls a little is all. But, at 480 some horse that's all it really needs. It's kind of funny they put a 950 cfm carb on a 250 horse 305.
Lololol they flow tested the heads then let pen pocket loose with a die grinder and now they need to get SAM to fix the heads. No wonder amish mike left this shit show.
Watching Pat twirl a speeder handle never gets old
That was cool to see. 👍
Low tension rings only gain you about 8 HP. Engine Masters tested this and that's what they found. Not worth the oil consumption and ring coking issues. Remember Audi with their 2.0 Turbo engines needing their pistons and rings changed after about 20K miles? They used low tension rings in those engines. Funny how the oil consumption went away after they installed new pistons and standard tension rings. You can pick up 8 HP by advancing the timing, a cam change, roller rockers if it didn't already have them, or installing a good set of headers. The rocker arm change they are doing probably freed up 8 HP. That engine won't last with a power adder on top of it. They'll be tearing it down for a ring job after 25K miles.
My engine builder built my 427 in 1983 and he was against nitrous or anything else and said “You want power available all the time so it’s always there” he also had me use lower compression pistons at 10.25:1 so I could use pump gas and it’s still running great 40 years later. It’s got a lot of power and surprised everyone including a policeman who I outran in 83. The builder made everything work together and was a master in tuning. It’s in a 1966 Chevelle which was my first car.
Dude that idle chop that thing had when first fired was crazy, almost like a top fuel
You guys just went next level with the compression ratio calculation .. loved it.
Has to be one of the best explanations I have ever seen outside of a classroom.
Excellent work guys ! I’ve always wanted a 427 and love working on performance engines, this video gives me some confidence that I can learn what’s needed
Same here Rick!
i never become weary of this show.thanks power nation.
dynamic duo is back
Man I really do love big block engines
That 427 Big Block Chevy is going to be a beast when its all done.
Ain't that the truth.bur is it worth it all.little ol LS cheaper more horsepower for the dollar.
Those two guys always put on a great show. Thanks Pat and Mike.
Every time he says “now”, take a drink.
Fuckn wasted bro!!
Dead in just under 19 minutes
8:34 My brain hurts. I kept up with more of that than I thought I would. 🤯
I JUST HAD A BIRTHDAY AND THAT ENGINE WOULD MAKE A ABSOFREEKINGLUTELY AWESOME BIRTHDAY GIFT
I just had a great BM & yeah, same.
$3500? Dang I need to find that type of deal
My 427 cost 3000 to build but that was in 1983 with good deals using the mechanic’s account. It would probably be 3 times that now.
I watch them all!
How?
I have the factory medium-duty version of that engine sitting in my 1974 c65 Chevy truck except for 8 years and all I did was pull the carburetor off clean the carb and put electric fuel pump from a gas can to the carburetor in it fired right up and drove home
Guys that is like a doctor taking a perfectly healthy patient and saying you need to have an operation lol 😂
Hi bro,amazing Piston look so special , thanks of video so great.
Great video. Precision multi angle valve job has to be the most complicated way of saying. 3 degree valve grind ever. Just having a little fun guys. Keep up the awesome content.
Great vid, really enjoyed...................... 👍👍👍👍👍👍
Great info and vids, Doesn't light piston ring tensions mean more oil consumption.
Sure can
I figured the ZZ427 BB would make more power than that the ZZ4 SB makes that same kinda HP the older ZZ3 SB was nearly as strong
Hey I defended you guys the other day I was talking about liking your show and he said well yea but they have all the tools in the world I explained to him that it takes years of experience and you must be very smart to use all those tools
Gotta see this build!!! Big block S10, this will be a hoot.✌️😎
My k10 and I are drooling
I love the information and like watching someone else do the work but it sounds like one long commercial. We all got bills to pay! LOL
i been getting the 450 hp 454 with the 02xx trans for free from 6,000 to 58,000 miles on them that is with a stock carb and intake with high flow heads they come with steel crank heavy rods 10.5 to 1 compression but if u change the intake and put a 850 it really comes alive
Always a great show, but disappointed that a perfectly good motor was torn down.
There is just something magical about 7.0l big blocks
BBC is magical 😅
Where is the next episode?
was there not a part 2 to this?
Matt is the man.
Miss you Mike
I know yall have to pay the bills but that royal purple is not what I would put in a sweet motor like that
First! I love this show
I'm currently trying to build a low-budget 454 bbc from an early 90's 1 ton Chevy dually. I have found that it's a factory roller cam motor which is a plus. I'm going to try to do most of it myself seeing we no longer have a local machine shop around. I'd like to get between at least 350-375 to possibly 425 hp out of it. What would you suggest for a good cam choice and intake? I'm certain you would say 1st thing to change the pistons. Small dome? Thanks! I love your channel!
Support the RPM act...
Very interesting, especially as I am fixing to rebuild my 1969 Chevy 427. Looking for all the pointers and help I can get! :)
if you have a true 69 427 there won't be much from this video that will help you with old school parts
I have a 427 in my 66 Chevelle that an expert mechanic built for me in 1983 and it still runs great 40 years later. I outran a policeman and all but 2 street racers. One had a pro bracket car with slicks and I was catching him. I never have traction when I take off with skinny street tires. Did you rebuild your 427?
I had a L 88 back in 1975, it was balanced and blueprinted. I could turn that engine to 7500 every time I wanted. Even missed 3rd gear once and the tach went to 8000. It was the best rat I ever had. It lasted 4 years, and when I sold it the guy ran it a couple qts low on oil, and ruined it
How's come no matter how many swap meets I go to There is no way in hell I could EVER find a GM Crate 427 like that one in that good of shape for 3500.00 bucks ! sheesh.
I HEARD PAT GOT THE GOOD COKE and I don't mean Coca Cola KNEW EL CHAPO HES THE MAN
Can you PLEASE do the old reliable 3.0 vulcan out of a ranger i wanna see you guys make a lil 3.0 scoooot
They won't, but I might 😁
I'm at work I'm going to watch this video about eight times
i need it for my camaro
Dont know if you answer such. How often does a head need resurfacing when dismantled when otherwise properly working? So when before dismantling it shows no signs of warping.
This cannot be a recent video. Pat looks about 10 years younger
1st aired in 2014.
I got a really interesting question and it's not as dumb as it sounds. I noticed you polished the top of those Pistons which is a good idea. I'm curious about smoothing the edges of the dome. Instead of having sharp edges is most of those don't have rounding the edges a little bit. Would there be any advantage to that? The main reason I ask is I'm not a big fan of those domes in the piston. I prefer a flat top piston but with that 24° valve angle that's a little hard to do to get compression ratios of 10 or more to :1
Saludos desde España
Love to see the 427 cammer Hemi !
Damn they don't have them at my swap meet F me running
I can't wait either
This would be so much more watchable than knife shows on tv…
Pistons are .027" in the hole with a .039" head gasket? That's a lot of quench height.
So are these actually new videos? Or are they old re-runs
Old from 2014.
Old reruns.
Old reruns
Nice, I’m in process of building a tall deck 427.
Can you educate me on the advantage of building a 427BBC compared to an LS of the same displacement please? I'm always surprised when I hear anyone building the old style engines these days. Seems to my ignorant mind that the reliability and affordability combined with tremendous horsepower potential of the LS would render the older engine format obsolete. Curious to hear your side. Thank you in advance!
How much power do you free up approximately from changing stock piston rings to low tension rings?
Engine masters tested this an found 8hp. Not much...
@@mikeg4163 Seems worth it considering the price. Also I assume it extends the engine lifespan? I may be wrong though.
Not enough to warrant oil burning and coking issues. Audi used low tension rings in their 2.0 turbo engines. Every one of them are smoke machines. They finally fixed that problem because they got tired of paying for customers to have their pistons and rings changed. You can get 8 HP by simply advancing the timing.
I never understood the cylinder head and piston polishing on a street engine. How long does it take to carbon all that work away?
Easy to remove with premium fuel and an Italian Tune Up. Drive it like you stole it = carbon removed.
(Question to self) What swap meet were they at?🤔😁
Why only a 427 that's small block ci
Why have all that extra weight
Hey guys I'm putting my bigblock 427 60 over in my 88 monte carlo SS what headers was it that were used on the monte carlo you guys built I am also going to use your trick on notching the a/c box on the firewall if you could give me the brand and part number for the headers I would really appreciate it thank you Rick427.
What type of tape was used to protect the cylinder heads?
AMAZING
I agree!!!!!!!!!!
Can you men please do a video of a 427 tall deck bbc build! NA and boosted?
ever notice that barrel faced top rings dont leave a nasty ridge
How can I get an engine built by y'all for my s10? 😜👍
Wished I could find these give aways!
Where are these swap meets I need to find directions
Does it make much difference to polish the ports to a mirror finish vs. just smoothing them out? Wow I miss working on a rebuild, almost 30 years, that's what happens when you have children.
no difference
Look how Young they both look 🤣
“Stealth” 427 big block Chevy?!?
You’re not fooling us. Anyone who sees or hears that it is a 427 will know that it makes power.
I’ve seen a big block identical to a L-88 dyno at 560hp with headers
Wind it up to 7500. Those 427s will turn that easy
It has a hydraulic cam. Never understood why they didnt stick a solid like the originals did.
How could I get the parts they take off and don't use
$3500 and it's a full roller? Dang, where on earth did you find that??
Umm, there is a faster easier way to get these numbers. Since CC is the only measurement we care about, then just do that everywhere, all the time. You can calculate the head gasket from pie, but everything else is a simple physical liquid measurement and there's your answer. Take that numerical value any way you like, but food color and alcohol is the best way to CC measure anything that requires a specific measurement at ambient temperature at your current level of specific gravity!
Cheers 🍻
Road signs are all that's holding back the U.S. adopting the metric system.
😎
I see the block is stamped with 7.4 so wouldn’t that be a 454 block ?
OK, is this an old episode re-released? I thought Mike had left Engine Power last year some time?
i heard that he works behind the scenes, writing and stuff.
Yes this is season one. This show is currently in season 8, these episodes are from 2014
Who makes the teardown trays you are using?
Goodson
I am interested on what the power adder is going to be
This is from season 1, which was seven years ago. So, we'd have to dig back a ways to find out what they did ;-)
Probably nitrous like on all their builds.
Excellent... when will ep 18 be out
I'd like that I my 1ton truck to pull my trailer
Get yourself a diesel engine for that task. Nothing's more enjoyable to tow with than a diesel. So much grunt right down low, it doesn't need to rev and scream like a gas engine.
@@Warrior_Resisting_Colonialism I hear ya but this motor would pull the fck out of a trailer aswell and a diesel doesn’t sound nearly as good as a screaming V8
@@hillybillysillysally5086let's not forget the joys of diesels having DEF crap. $300+ oil changes. I'll stick with a gasser over a modern diesel anyday
Pat looks so young lol
@17:04 It's not motor oil! Show me a single "motor" that requires oil, and then show me where it goes! These are ENGINES, not motors...... Engine is internal or external combustion. Motor is electrical, always!
Don't believe me?
Go find me a power window engine!
How about a windshield wiper engine?
Oh, I need a new engine for my ceiling fan in my kitchen.
They are not all motors despite the fact that they all create a motive force! Engines are defined by what they are, same as motors, but they are NOTHING alike! I do expect you to know better by now.
Enough of my noise.
Cheers 🍻.
Larger electric motors certainly require oil.
Also, why is detroit called the motor city? Why are motorcycles called what they are?
Relax, the English language is not consistant.
@@crissd8283:
Oh yes, I knew how badly I screwed up right when I hit that reply button. Normally I write a draft, I proof read and then submit. This one I'm passionate about and I went a bit hot and fast.
But I want to say here so that I don't have to say it a million times more: I did not create the English language. I simply do my best to use it correctly every day, even when I intentionally use it wrong!
Cheers 🍻.
You are professionals, there'sno doubt about that! But.. there's also one big but here. 99 percent of mechanics lovers can neither understand nor apply in reality what you teach. So this whole program is one huge sales channel...
How much time will the clevite tri armors give? Is this a lifetime of protection?
That depends on how well the oil and filters are changed. You could have military grade bearings ( I'm being sarcastic. ) and if you don't change the oil regularly, it'll start knocking before too long.
I think was like 5 years ago.
Wtf is the point of buying a hopped up crate engine if you’re just going to change half the shit that makes it a special crate model? Why not just start with a factory stock block at that point if you’re just going to upgrade all the upgrades shit already in it 🤷♂️
It's because the manufacturers give them free parts to showcase, think of the show as an infomercial and it'll make sense....
I wonder about itemized price to buy the "keeper" parts individually. Could it be it's actually cheaper to start with a complete engine? I also wonder why anyone would go to the expense to build a BBC or SBC when the LS engine family is so readily available and makes so doggone much reliable horsepower.
It's always good practice to do a tear down of any used engine you buy that you don't know its history. At most, all I would have done was install new bearings, reassemble it and stab it in to whatever project was going to receive it.
@@drewt3210 People who are restoring a classic car that had a 427 would do this. This engine drops right in versus the more expense of buying LS swap parts, and or custom fabrication. Ideally, you want a numbers matching car for the most value but a period correct car is the next best thing. I mean LS swapping a 67 Corvette would be cool, but ultimately more expensive than stabbing in another 427, and removing value at the same time. Now if you're doing a rat rod or restomod then the LS swap can come into play.
@@TwentytenS4B8 the wear and failure items aren’t what I’m talking about. But the cam, rollers and lifters are part of why that engine was worth anything to begin with being upgraded from the crate already.
Again why buy a hopped up motor if every part that makes it hopped up over a base factory motor is going to be taken out snd replaced.
That’s like buying a brand new home just to tear it all down and build a new one. Instead of just building it how you wanted it from the get go instead of buying already built plans or buying s junk fixer upper
A 427 at a swap meet for 3500 bucks ????? I’m calling bs.
This aired 2014. So proly picked up in 2013.
$22000 here in australia new just long engine ..wow gr8 deal ?????
You completely lost me on the math thing I've been a working on car's for a living for 40 years now that is y I use a machine shop lol 😅
What is pig mat?
Basically It's a liquid absorbing mat.
Thanks for telling people to wait to change their oil, keeps us in business. Please tell people more stupid things, like they only have to do it once a year and don't need antifreeze in the summer
6.535?
@@bigboreracing356 That's what I thought. Thanks!
They put a 770 cfm on a 427 bbc and a 950 on a wore out 305🤦♂️ what in the world lol.
If I heard correctly the 770 was what Chevy used for testing the engine (at 1:22).
@@2aminitials yes, you did hear that right. I was really just busting their balls a little is all. But, at 480 some horse that's all it really needs. It's kind of funny they put a 950 cfm carb on a 250 horse 305.
@@andy347495 Yeah they do some odd things sometimes.
Power...Nation. "EV Power Nation". Think on it. Can you beat 1600 hp in a fiberglass Edsel? EV gasser...hmm
0:28 nope you're in my bedroom homie. No homo
Lololol they flow tested the heads then let pen pocket loose with a die grinder and now they need to get SAM to fix the heads.
No wonder amish mike left this shit show.
I miss Mike
$3.500 to begin a refit.