Indy 440-1 345cc build

[dvw]

I’ve built several stock block 493s with ported 440-1 heads and dominators that went mid 9’s in full weight b-bodies. That’s been a great cylinder head for years.

Agreed the heads work well. My 64 has been 9.0 with -1s. It’s the block at that power level that’s a crap shoot. Agree here with what others have said, a large port-1 on the street is probably on the edge of comfortable drivability.
Doug