Ls1 or Ls2
Thread Starter
Burning Brakes
Joined: Nov 2005
Posts: 871
Likes: 4
From: Pembroke Pines Fl.
Ls1 or Ls2
Need your opinion: I am thinking about replacing my hurt LS1 "broke the ring lands" on #7 cylinder, with a Stock LS2 . Or should I rebuild my LS1 with forged rotating parts . I have a A&A V2 supercharger . Was boosting 10 psi .
Team Owner
Joined: Jan 2007
Posts: 29,063
Likes: 1,839
From: cookeville tennessee
If you are going small ci go with your block, If you want 402 are bigger do the ls2 block and be done with it..
Thread Starter
Burning Brakes
Joined: Nov 2005
Posts: 871
Likes: 4
From: Pembroke Pines Fl.
Est cost to rebuild LS1 would be about 3k but it would be forged.. ls2 average price is around 2,500 plus relacating knock sensor harness and replacing reluctor prob around same cost .
Melting Slicks
Joined: Nov 2011
Posts: 2,789
Likes: 3
From: Jacksonville FL
Tough one. Guess it depends on your goals. If you want a max NA build then I guess the new block but the forged rebuild would be my lean. Keep us posted on what you decide.
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
If cost is about the same, Id say go with larger displacement. If you do rebuild the LS1 with forged internals, would you be planning on upping the boost? Both would make for a good gain in power.. depends on what you have planned.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
The stock LS2 is a fantastic bottom end - "BUT"
A forged LS1 is way better and especially since you are already FI - that is the only way to go!
make sure you are running Meth injection or really ramp up your fuel system to handle the Boost - #7 is the one that always goes first and it gets lean, thus breaking your rings!
It won't matter what you put in there if your fuel system is not up to par!
Thanks,Matt
A forged LS1 is way better and especially since you are already FI - that is the only way to go!
make sure you are running Meth injection or really ramp up your fuel system to handle the Boost - #7 is the one that always goes first and it gets lean, thus breaking your rings!
It won't matter what you put in there if your fuel system is not up to par!
Thanks,Matt
Thread Starter
Burning Brakes
Joined: Nov 2005
Posts: 871
Likes: 4
From: Pembroke Pines Fl.
thanks for the replies. I just purchased a low miles stock 02 ls-1 to get me back in the game . going to install a blower cam and springs and start to overhaul the original engine with forged componets and go from there . thanks everyone for your input>
Melting Slicks
Joined: Nov 2011
Posts: 2,789
Likes: 3
From: Jacksonville FL