Ok heres my problem I ordered a turbo system with GTS76 turbo and I am only runing 8psi but I want to run from 12-13 or more psi so I'll be running about 600hp but I know it will kill my stock engine I have big enough injectors and fuel pump and I have a nelson performance pcm but I dont know how much I can slow the timing but I need to know like what crank,cam,pistons,heads.ect to use so I can run that much boost and If you could tell me what ones and where to buy them it would be a big help cuz I have been unsucessful in finding them and also how much horsepower is a stock crank good for its 450 isn't it? and how much will my six speed handle?
so if someone could help me out I would be very thankful

 

crank will be good to over 550 with if you have the right parts.

 

You'll definitely need forged dish pistons and good rings. You'll need forged rods if you plan on spinning it above 6400. The stock crank is fine in the LT1. You will need to get your compression ratio down to about 8.5 to 1. LT1 heads have small combustion chambers (Even smaller if you resurface)and must be heavily bowl ported. Trickflow and AFR heads have much larger combustion chambers and are more suited to forced induction. I chose ported LT1 heads due to the low end torque they make and also due to the price.

 

I've always liked the idea of buying a balanced forged, rotating assembly rather than mixing pieces/parts.

 

Can you please use punctuation. The question is very hard to decipher.

 

Pistons play the biggest factor, as far as running more than a mild amount of boost, and you motor holding up to the power.

 

I'm running 11.5 psi on my stock impala bottom end LT1 right now. It's not going to last long though. When it blows, I'm just going to go with some ported GM LT1 heads, forged pistons, stock rods, and a cast 3.75" stroke crank. It should be strong enough to handle my goal of ~525rwhp at around 6200 RPM.

 

Thats the longest runon sentence I've ever seen. Welcome to the text message era.