Pistons

[3.8Turbo]

I bought a rebuilt TTA engine a few years ago. Its got a roller cam, ported heads, etc. The pistons are stamped L2471, which is a Buick 350 piston. Any idea why the builder would choose this piston?

 

[charlief1]

It's also the same piston used in the Buick V6. It will give a little more compression in the V8 but it is the same piston made by the after market.

 

[bison]

TTA engine had different piston dish than earlier lc2 engines.