Some say its like 8.2:1, I believe it's like 8.7:1. When I am not in boost It doesn't have alot of torque. That is probably why I am having launching issues. Its great in boost though. LOL! Its a stock 5.3 with stock 317 heads (3 angle valve job), stock GM gasket, 02' Z06 cam.

 

i dont want to do a stroker ive thought and thought more about it, and im just not wanting to do it . i kow its not more expensive but id like an almost stock cu inches motor that can handle some power. besides im not looking to upgrade my 65e to an 80e .so thats the main reason stopping me. but thanks for the advice im going to start on this build in early october.

 

You will be happy with the 370 + boost. I did a f-body years ago, 347ci, 815rwhp!

 

This is just my 2 pennies, but I would bore the 6.0 0.030 over, put some nice forged pistons in it, use stock 4.8L rods with upgraded bolts and the stock crank. That way you could have a long 370 that would be able to handle some boost. This is the direction I'm going when the 4.8 gives up the ghost.

 

a 370 is exaclty that a 6.0 .03 over, why would i use 4.8 rods??

 

For 600 more you have forged rods, well worth the added insurance, especially at 15psi plus like in the original post We're talking 700+ hp!!

 

You dont need a forged crank, stock has been proven to hold 1000hp.

 

i know the stock one will do i was just seeing if there was a chaepaer one for weight loss. but im going to most likely use the stock crank

 

If you want weight loss, put a Aluminum 6L LS2 block. This block will hold 1000+ hp and also drop 110-120lbs off

 

I thought there was a knock-sensor compatibility issue with the ls2 blocks, do they need to go on the side or something like that? Aluminum is cool though