stock 400 small block - how much dish?
I thought about 'reviving' my 400 small block. It's a 511 casting with 997 heads. I would like to leave the bottom end alone for now and only add better heads and a new cam, probably a Comp XE272H. I don't think I'll need the performance of those fancy aluminum heads and that's why I thought about a pair of RHS ProTorker Vortecs (170cc/64cc).
The only reason why I still might consider aluminum is the increased compression - which is a good thing but maybe a tad too much for those iron heads. I know that these 70s 400s have dished pistons but I'm not sure exactly how much. This info is probably somewhere out there but I'm unable to find it.
Thanks for your help.