Cylinder head secrets by Pro Stock engine guru Pat Topolinski unlock the potential of a big block Chevy crate motor.
Follow POWERNATION Everywhere:
https://www.powernationtv.com
https://instagram.com/powernationtv
https://facebook.com/powernationtv
https://tiktok.com/@powernationtv
PARTS USED IN THIS EPISODE:
ARP: Engine Accessory Bolts, 12-point, Stainless, Polished, Chevy, LS Small Block, Carburetor Fuel Delivery, Kit
More Info: https://pntv.us/pn_pt_883
Chevrolet Performance: Engine Assembly, Crate Engine, Chevy 427, 480 hp, 444 lbs./ft Torque, ZZ427/430 , Each
More Info: https://pntv.us/pn_pt_877
Clevite: Main Bearings, H Series, 1/2 Groove, Standard Size, Tri Metal, Chevy, Small Block, Set of 5
More Info: https://pntv.us/pn_pt_880
Demon Fuel Systems: Carburetor, Street Demon, 625 cfm, 4-Barrel, Square Bore/Spread Bore, Electric Choke, Composite Bowl, Each
More Info: https://pntv.us/pn_pt_884
Lunati: Rocker Arms, Voodoo, Full Roller, Aluminum, Black, 7/16 in. Stud Size, 1.7 Ratio, Chevy, Big Block, Set of 16
More Info: https://pntv.us/pn_pt_878
Royal Purple: Motor Oil, Multi-Grade, Synthetic, 0W40, Quart, Each
More Info: https://pntv.us/pn_pt_882
Summit Racing: Porting and Polishing Kit, Deluxe Porting, 56 Pieces, Clear Plastic Case, Kit
More Info: https://pntv.us/pn_pt_879
Summit Racing: Summit Racing Compression Calculator
More Info: https://pntv.us/pn_pt_881
Kimberly-Clark Professional: Scott Pro-Shop Towel, Blue Roll
The Industrial Depot: Fasteners, Hardware and Shop Supplies
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
Man I really do love big block engines
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 😅
Guys that is like a doctor taking a perfectly healthy patient and saying you need to have an operation lol 😂
I see the block is stamped with 7.4 so wouldn’t that be a 454 block ?
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
Pats a top nhra engine builder lots of ignorance here. Go back to your forums
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!
Why won't the mfrs go back to engines with 1 center cam, push rods and hyd lifters, and 2 valve rocker arms instead of all this multiple chain drive massive heads, twin cams, multiple valves, engines of today ? What was wrong with the simplicity from the past ? Can the computer module not run that type of engine ?
You guys are like brain surgeons it's crazy what goes to build a good race track engines ….
$3500 unreal and in australia $22.000 new or more
$3500 and it's a full roller? Dang, where on earth did you find that??
Where are these swap meets I need to find directions
3500 sounds a little far fetched. why cant the rest of us get deals like that.
Hopefully the younger guy got rid of the toupee
Wind it up to 7500. Those 427s will turn that easy
These two get it ass wrong everytime they mention a build wasting a Big block in a S10 they got their taste in there ass.
You jackoffs didn't buy the motor at a swap meet for thirty five hundred bucks.
Couple of jarheads.
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.
This would be so much more watchable than knife shows on tv…
Want to make real power don't use that carburetor
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
That's pathetic
America 🇺🇸💪🏼🤙🏼🔧🔩
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
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
You make a mistake, GM says it's 10:1 compression.
The UNPOWER IDIOTS STRIKE AGAIN!!!!!
What type of tape was used to protect the cylinder heads?
The cooperative sled hypothetically learn because grade oceanographically carve beyond a fascinated wednesday. gifted, womanly stove
Power…Nation. "EV Power Nation". Think on it. Can you beat 1600 hp in a fiberglass Edsel? EV gasser…hmm
Lol stealth
In the next episode….. nope. Incompetence.
Very interesting, especially as I am fixing to rebuild my 1969 Chevy 427. Looking for all the pointers and help I can get! 🙂
Professional , I wouldn't trust Chevy with my Chevy
I HEARD PAT GOT THE GOOD COKE and I don't mean Coca Cola KNEW EL CHAPO HES THE MAN
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 is pig mat?