I just recently bought a 93 z28 that has a 97 lt1 engine in it . Motor already has headers on it and the stock aluminum heads on it . I'm going to rebuild the engine but need so help on some good combination . Was thinking about a 355 at first but now I'm thinking more like a 383 with a 200 wet shot . I'm aiming towards 7.0 or 6.80 in the 8th mile on 93 octane . If anybody has all ready reach these goals or no exactly what it will take to get my car to such a achievement please feel free to send me some info . Or if any parts for sale I'm interested in gears , engine parts and many more . Thanks

 

To achieve 6.8 in the 1/8th with a full weight car you're going to need about 650 flywheel horsepower. And then you'll need all the supporting chassis upgrades to get that power to the ground. Start by doing a search to see what folks are already doing and also consider giving Llyod Elliot a call for a heads/cam package that will set you up for your goals. Here's a link: http://elliottsportworks.com/

Good luck!

 

A 383 with 200 shot will easily do 6.8-7.0 if the rest of the car is sorted. The key that level is more about traction than raw power.

Auto or manual? If auto, you'll need a new converter at minimum. If manual you'll need a good clutch and 12 bolt rear axle at minimum.

200 shot, you could probably get away with a cast stroker crank, but I'd certainly do forged rods and pistons. A heads and cam package to take advantage of the extra cubes is also smart. And dont forget about the machine shop costs (2 bolt or splayed 4 bolt, clearancing for stroker, recip. assembly balancing, hone, align hone, etc).

And you'll need an upgraded torque arm, sticky tires, and any number of suspension upgrades if you want it consistent.