1975 Corvette performance upgrades?
Le Mans Master
Joined: May 2002
Posts: 5,084
Likes: 786
From: Lebanon Township New Jersey
I have the original 2 bolt 350 block in my car. Also using a cast, stroker 383 crank and original, reconditioned rods. I do have forged pistons. I have about 10,000 street miles on it and over 250 quarter mile runs, currently running low 12s at 109/110 mph. This setup can be duplicated far cheaper than an LS conversion would cost and is far easier to do. Just my experience.
Le Mans Master
Joined: Oct 2010
Posts: 6,903
Likes: 834
From: melbourne florida
2023 C3 of the Year Finalist - Modified
I've built several pretty potent small block drag engines based on a 2 bolt block.a set of splayed caps work very well. The cast crank is probably ok to about 350 horsepower which is more than an ls1 makes.
The small block chevy is an excellent foundation for a performance build. The LS series engines are a fine engine without a doubt, but they aren't that cheap .the small block chevy has won alot of races and powered alot of pretty fast street cars in its 60 years, and it's not done yet.
The small block chevy is an excellent foundation for a performance build. The LS series engines are a fine engine without a doubt, but they aren't that cheap .the small block chevy has won alot of races and powered alot of pretty fast street cars in its 60 years, and it's not done yet.
Melting Slicks
Joined: Dec 2015
Posts: 3,181
Likes: 732
From: Texas City, TX Texas
The main reason it's a dog is the low compression ratio. Rebuild it with the right carb, intake, cam, and headers, and 10:1 compression, you'll be happy.
Last edited by Richard Daugird; Sep 5, 2016 at 08:11 PM.
Racer
Joined: Jul 2013
Posts: 257
Likes: 36
Thanks,
Mike
Last edited by hpxt; Sep 6, 2016 at 05:09 PM.
