Engine build plan

[yepes281]

So guys my mechanic told me to give him a budget, and an idea of what i want, and he'll work with me to build my engine. I'm looking for 400 whp on my 20g, i dont wanna switch turbos, and i wanna be able to run pump gas. So give me an idea of what to do parts wise, and internally wise, my motor does have 190,000 miles. The rest of my mods are in my profile.

So:
I wanna keep the 20g
I wanna run pump gas
I do have arp head studs and cometic headgasket (not installed yet though)
and im looking for 400 whp

 

[biker_joe89]

Lower compression pistons the more boost you can through at it. Higher compression pistons you will see more power out of your engine but will be more limited on boost. And some cams thats my 2 cents.

 

[mike96]

cams
get rid of that SAFC and get yourself an OP2.0 adapter
maybe get some bigger injectors just to be on the safe side 750 - 850
shooting for 400 WHP you might want to upgrade the internals (pistons/rods)
shouldn’t need them but always good to have ARP main studs.
balance shaft elimination...

 

[yepes281]

So you dont think i could push 660s to 400 whp? i plan on upgrading to dsmlink but funds are limited right now due to getting the gasket/studs installed, and you cant tune 750/850s with an afc.