l92 vs lt4
Thread Starter
Joined: Jun 2005
Posts: 4,641
Likes: 392
From: cookeville, TN
l92 vs lt4 Trying to make some decisions on my 71 Camaro build and when Im considering true cost instead of a power for power check. yeah I can chip away at the l92 and throw some money at internals, but in the end would the lt4 be simpler and near the same money in the end?
I have a chassis works boxed front half for this so fitment Isnt really a concern its a choice of buying motor mounts and tranny crossmember that I haven't purchased yet anyway. This will be a resto-mod, so no issues making changes to the body if needed, but will be a 6 speed car and my understanding at the moment is the tunnel can handle the swap with no modifications.
So I have a l92 with 75k on it that I picked up for 3k. Plan was to shoot for a 500hp build I currently have no accessories and just have a bare ls3 intake manifold. So by the time I get all the things I dont have and build it and pay for the work and a tune...... Am I better off finding a LT4 pullout that I have seen from 10-12k in current market.
Lt4 is essentially turn key in this case no need to tune other than disabling things in the ECM which I can do compared to dyno time. Would have accessories injectors and all the things Id still have to purchase.
It seems to be a potential break even for me by the time I purchase all the stuff/pay for engine work
I have a chassis works boxed front half for this so fitment Isnt really a concern its a choice of buying motor mounts and tranny crossmember that I haven't purchased yet anyway. This will be a resto-mod, so no issues making changes to the body if needed, but will be a 6 speed car and my understanding at the moment is the tunnel can handle the swap with no modifications.
So I have a l92 with 75k on it that I picked up for 3k. Plan was to shoot for a 500hp build I currently have no accessories and just have a bare ls3 intake manifold. So by the time I get all the things I dont have and build it and pay for the work and a tune...... Am I better off finding a LT4 pullout that I have seen from 10-12k in current market.
Lt4 is essentially turn key in this case no need to tune other than disabling things in the ECM which I can do compared to dyno time. Would have accessories injectors and all the things Id still have to purchase.
It seems to be a potential break even for me by the time I purchase all the stuff/pay for engine work
TECH Fanatic
Joined: Sep 2008
Posts: 1,650
Likes: 529
I've done a couple L92's dressed as LS3's. 225I/230E cams/headers. Used 2002 Camaro FEA. The first was a 2010 L92 on the chassis dyno did 420 RWHP. So just shy of 500 at the crank. Super easy to tune. Maybe 6K in the engine 6 years ago. My current 80 Camaro project is a 2012 L92 and again dressed as a LS3. Same cam. Built 4L60E. Just did a drive tine. Per my tuner guy a chassis dyno tune was not needed unless I just wanted to see the numbers. I could care less. Runs super. Maybe $6500 in the used 25K L92 with the upgrades.
Just my .02.
Just my .02.
