W2 intake manifolds pics

Scampin said

I'm curious what designates the cast iron manifold as w2 if it uses standard la for runners? That being said, all cast iron stuff excites me. I'm interested in all odd ball small block stuff.

Click to expand...

It only bolts to W2 heads. W2 intake bolts are spaced differently. If the factory LA bolt pattern was used, the intake bolts would protrude into the area where the intake pushrods live with the offset rockers. T/A heads had a lot less rocker offset, so the production pattern didn't present a problem.