427's
Drifting
Joined: Oct 2005
Posts: 1,527
Likes: 148
From: East London/SW Essex UK
Racer
Joined: Jan 2013
Posts: 302
Likes: 2
From: Sayville New york
That's all that dude from Georgia did everyday. You give him the exact numbers and he made it perfect. Use a belt sander on front pad match GM exact then stamped block with OEM punches. And if you wanted right side under exhaust date stamp or back of block top block casting you sent block and he returned in short time.sport fishing boats like Bertram use 427 in there boats,a few year later discarded and replaced with 454 mercruiser .just about every 1967 big block is a 427" 435 hp I wonder how every 435 hp car survive and the 390 hp perished?
Safety Car
Joined: Sep 2011
Posts: 4,098
Likes: 1,221
From: Madeira Beach, FL
2024 C8 of the Year Finalist - Unmodified
2024 C2 of the Year Finalist - Unmodified
2023 C2 of the Year Finalist - Unmodified
2020 C3 of the Year Finalist - Unmodified
When I advertise mine shortly before death it will read:
68 BB coupe,427 replacement engine, blown up many owners ago.
Tank sticker confirms orig. 427 car, block replaced.
Purists need not respond.
Those wishing miles of smiles inquire away.
It's a blast to drive!!!
Marshal
68 BB coupe,427 replacement engine, blown up many owners ago.
Tank sticker confirms orig. 427 car, block replaced.
Purists need not respond.
Those wishing miles of smiles inquire away.
It's a blast to drive!!!
Marshal
Instructor
Joined: Oct 2007
Posts: 167
Likes: 1
From: Escondido CA
I built a 427 because I had all the parts. Basically a blueprinted L-36 with a big solid cam and RPM intake. I think it'll be a great street runner. To me if you only have a block and you're not shopping for used parts go 496, if you have a complete engine then build it. There's lots of weak 496's and screaming 402's out there.
Drifting
Joined: Jun 2007
Posts: 1,404
Likes: 1
From: Ansonia/NYC CT
The Chevy 427 is a part of automotive history. Pound for pound, it made more power in its day than just about anything I can think of, off the top of my head. And it was a screamer. From the factory, you could wind a 427 out to 7,500 all day. Try doing that with a basic 454.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Melting Slicks
Joined: Apr 2007
Posts: 3,189
Likes: 111
From: Tolland CT
Unfortunately a block with date codes within accepted range can be obtained, new numbers stamped. Some businesses advertise this service. An unethical owner could use epoxy mixed with metal filings as well... There's quite a lot of incentive for this, done quite often unfortunately, requiring owners of true original performance Corvettes supply further proof of authenticity.
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
I made the "mistake" of swapping in the other direction and gained ~5 MPG over the L82 350 originally in my '78, at least whenever I managed to keep my foot out of those Tri-Power secondaries.
Drifting
Joined: Oct 2005
Posts: 1,527
Likes: 148
From: East London/SW Essex UK
Big isn't always bad in terms of fuel economy - it would be interesting to have a large cube stroker, (say 540 cu in and larger) built-up specifically mild and perhaps injected for best economy and see what 'actual' performance can be achieved over and above a 427/454 (or hot small block for that matter!)