[Doohickey]

There was never a GTO SS (That was Chevy's performance package). Plus, the 350/389/400 were smallblocks; the 396 was a big block.

The smallblock 400 was introduced in the 1967 model year, which was a bored out 389. You could perhaps bore out a 400 an additional .030 over before the cylinder wall be came too thin in the area of the water jackets.

[MarkL]

There was never a GTO SS (That was Chevy's performance package). Plus, the 350/389/400 were smallblocks; the 396 was a big block.

Sorry, but the Pontiac V8s were all big block.

Mark

[doodad]

I know there wasn't, I was just thinking that perhaps the hybrid part was that it was a different engine. He did not say the car was all original, but called it a hybrid and did spec an engine. That was one way I could think to do it.

I think you can reach a 396 somehow with a smallblock. Weren't some of the 409s generated from SB?