lt1 or ls1 head fit?
Joined: Mar 2003
Posts: 1,149
Likes: 1
From: Gladstone, Missouri
Car: 91 Camaro RS
Engine: 5.0L TBI (ebl inside)
Transmission: T-5
Axle/Gears: 3.42 lsd 10 bolt
I saw some where on TGO where LT1 heads would fit gen one block with extensive modification and then use of lt1 would be preferred and practical. But anything close to direct, NO, not at all.
Supreme Member
iTrader: (1)
Joined: Jun 2002
Posts: 1,843
Likes: 2
From: Chicago, IL
Car: 91 Camaro RS Convertible
Engine: 305 TBI
Transmission: 5-Speed
Axle/Gears: 3.42
LT1's have reverse flow cooling. They won't match up to your block right and aren't worth any modification to fit. LS1 heads are completely different.
Junior Member
Joined: Aug 2004
Posts: 13
Likes: 1
From: WI
Car: 91 Camaro RS
Engine: 305
Transmission: 700R4
Axle/Gears: 2.73
LT1's have reverse flow cooling. They won't match up to your block right and aren't worth any modification to fit. LS1 heads are completely different
Do you think LS1 heads would fit on my 89 350 (carb)?
-dusty89camaro
Joined: Mar 2003
Posts: 1,149
Likes: 1
From: Gladstone, Missouri
Car: 91 Camaro RS
Engine: 5.0L TBI (ebl inside)
Transmission: T-5
Axle/Gears: 3.42 lsd 10 bolt
Alright Lt1 heads and Ls1 heads are not the same. LS1 heads have never been put on a gen 1 block. With a bunch of work Lt1 heads have been put on a gen 1 block. Stock heads are gen 1. Vortec heads are gen 2, however will bolt-on relatively easy except you have to use vortec style intake. A lot of Gen 1 block and Gen 2 block are the same except when it comes to reverse cooling.
Joined: Feb 2001
Posts: 13,758
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
LS1 heads are a whole other animal and will not work at all.
LT1 heads can be made to work with extensive work to them but it is not worth it on a 305 TBI.
416, 081 or vortecs are your best bet.
LT1 heads can be made to work with extensive work to them but it is not worth it on a 305 TBI.
416, 081 or vortecs are your best bet.
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