Difference between L92 and LS3

[Danksta14]

What are the main differeces between a L92 and LS3? Swapping out old for new. Engine is for a 69 Camaro.

[RodDawg]

What are the main differeces between a L92 and LS3? Swapping out old for new. Engine is for a 69 Camaro.

L92 - VVT (variable valve timing) and big ugly truck intake
LS3 - No VVT and has better looking car intake


I have the L92 myself. I wanted to take advantage of the VVT, so I kept it and put the LS3 car intake on it.

[holschen]

i have the l92 myself. I wanted to take advantage of the vvt, so i kept it and put the ls3 car intake on it.

= l99

[RodDawg]

= l99

Yeah. They weren't available when I bought mine, and you still probably would want to do away with the DOD (displacement on demand) that comes on the L99. I bought a L92 crate and went to Mast for parts.

[neki67]

LS3 valves are hollow and thus lighter than the L92 solid valves.

[RodDawg]

LS3 valves are hollow and thus lighter than the L92 solid valves.

You're right. I forgot about that being different too.

[Oz69camaro]

I have a motor that i have been told is an ls3, how can i tell that its an ls3 not an l99 or l92?

[RodDawg]

I have a motor that i have been told is an ls3, how can i tell that its an ls3 not an l99 or l92?

I know the VVT engines have different water pumps, and the L92 has the huge intake.

If it has not been modified, it should look like the first pic.

LS3



L92 (Should be the easiest to spot with the intake and VVT truck water pump)


L99 (underneath should be the same looking intake as the LS3)

[Oz69camaro]

I know the VVT engines have different water pumps, and the L92 has the huge intake.

If it has not been modified, it should look like the first pic.

LS3



L92 (Should be the easiest to spot with the intake and VVT truck water pump)


L99 (underneath should be the same looking intake as the LS3)

Cheers for the info, looks like i have an L99. Might have to take advantage of the vvt.