A better top speed?speeded
Go with a ls2 flywheel and ls7 clutch or aftermark clutch if you dont prefer a stock feel

 

i want to get the pull off the line and then a good top speed. i am going to put a godspeed twin turbo kit on it for everything in between.

 

Gearing will have an effect on that not clutch and flywheel choice. 373 or 410 gears max.

 

Please don't put a God Speed Turbo kit on your car. Its an eBay kit so it will have terrible quality, fitment issues, etc. If you really want to go Turbo check out the Forced Induction Section and look at the Truck Manifold Stickies at the top of the page.

 

Your ls1 block might be reusable. Ive torn down two different 98 ls1 engines that had little to no cylinder wear after 106k and 141k miles. The factory rings are easy on the sleeves so if the engine was properly maintained the cylinders may still clean up. As mentioned earlier the 97-98 ls1's had a thinner sleeve so 3.903 is about as far as you can safely hone. A 4" stroke in your ls1 with a specd cam will make 400whp easy.

 

Another vote here for rebuilding the stocker. And if you need some bolt on stuff I got stuff PM me. Headers, k-member lids TB.

 

I got plans for the ls1, But what twin turbo kit should I use.

 

CBR twin kit from Modular turbo. Nothing fits better without losing anything like A/C swaybar or anything. Keep everything.

 

Where can I buy one and how much. Also what horsepower do they get consistently.

 

Modularturbo.com

Power will be determined by turbo size. Anywhere from 500-1400 is possible.