I bought a 5.3 ls motor a few months ago that I'm looking to put in to my 79 chevy k10 it came with 317 heads, 6.0 intake and cam I need some advice I'm looking to push equal or close to the same horse power as torque I know the way the motor sits now there's hardly any power to it what would y'all recommend I'm shooting for 600+

 

317 heads? A ton of boost...

 

Welcome, forced Induction.

 

317 heads aren't ideal for 5.3, but throwing boost at it will get you where you need to be

 

I have a 5.3 bored to 346 with 317's. It is designed for a turbo or blower. The 317 is a modified LS6 head with bigger combustion chambers. I run them to get the compression ratio down a bit. Be sure to use LS6 head gaskets with them.

 

If the plan is to stay NA, I would look for a cam that optimizes the dynamic compression ratio (low overlap).

Andrew