How to proof engine is LS6 ?
if block then look at the back driverside and there is a casting number '12561168' is the ls6 casting number, anything else is an ls1 block.
if motor, check casting number on block and it should have ls6 heads which have a 243 casting number on them.
also will have an ls6 intake.
You can have an LS1 with an LS6 block
You can have a modified LS1 with an LS6 block and the LS6 intake (241 heads)
You can have a modified LS1 with an LS6 block, LS6 intake, and 243 heads (but not the sodium filled valves or LS6 cam)
So I guess the question is how much of an LS6 do you want?



