Help me pick the right engine
Thread Starter
Drifting
Joined: Apr 1999
Posts: 1,667
Likes: 54
From: Brisbane CA
Help me pick the right engine
I have a 105K on my engine with a P1SC Procharger. I want to give the drive train a refresh. Should I do a refresh and put forged components in it or install a LS3 and modification to get it into a 99 C5 with auto. I am looking into getting around 600 RWHP safely with no major drive train issues. Pro and cons on each method?
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
600 is well within the capability of your ls1, there is no reason to change engines imo unless yours is totally shot and can't be fixed
Drifting
Joined: May 2007
Posts: 1,550
Likes: 324
From: Mid Ohio
My theory is to put the least amount of stress on parts as is possible. Out of those two I'd go LS3 w/a small cam and just enough boost to make the 600rwhp. (less boost = less IAT heat = less chance of detonation)
Racer
Joined: Apr 2021
Posts: 289
Likes: 102
From: Texas
A forged setup on your LS1 might be cheaper...but more and more it looks like an LS3 is the better bang for the buck in the long run.
https://www.lsxperformanceparts.com....orged-package/
https://www.lsxperformanceparts.com....orged-package/
Race Director
Joined: Apr 2007
Posts: 11,150
Likes: 890
From: South Western Ontario
Damn, some people like adding a Corvette tax. The Summit Pro LS Piston and Rod kits are $1500 less than that and by all accounts they are good pieces. For the Summit price, I'd go forged with the LS1 but I wouldn't do it at that LSX Performance Parts price.
Last edited by lionelhutz; Jul 20, 2021 at 01:09 PM.
