LT 4 Difference?
Melting Slicks
Joined: Nov 2003
Posts: 3,375
Likes: 1
From: Northern CA
I'll start so I get to just give you some background instead of answer the difficult part 
LT-4 stock has about 50 actual hp more than the LT-1. It is only rated 30 hp higher. They didn't want to embarass the LS-1 that was due to come out in 1997.
Most LT-4s were coupes. LT-4 is the engine that came with all 6-spd Corvettes in 1996 and wasn't available on the automatics.
LT-4 stock has about 50 actual hp more than the LT-1. It is only rated 30 hp higher. They didn't want to embarass the LS-1 that was due to come out in 1997.
Most LT-4s were coupes. LT-4 is the engine that came with all 6-spd Corvettes in 1996 and wasn't available on the automatics.
Team Owner
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
The main difference between LT1 and LT4 is the heads, cam, and intake manifold.
Its easier to make more power with the LT4 because the ports are larger.
Its easier to make more power with the LT4 because the ports are larger.
Pro
Joined: Jun 2004
Posts: 520
Likes: 2
From: Mandeville, LA / Clemson, SC
I had the same question a little while ago and I found this site and it was very informative to me. http://www.grandsportregistry.com/lt1vslt4.htm
