318 with 360 crank-another peeing contest

64physhy said
Wouldn't the piston be like .210 out of the hole if you used stock rods and pistons with a 360 crank? There's a .270" difference in the cranks, and the pistons are usually about .060 in the hole on a stock engine. I don't see how you could possibly use stock pistons.

I've been considering making a mild stroker with the 318 block, 360 crank, and 302 heads that I have in my garage for a while now, but I really don't think stock pistons would work unless the rods were shortened, but it would be way cheaper to get the right pistons than to shorten the rods.

If I got this figured right the difference is .27"/2= .135..Don't forget to halve the difference in the stroke. The full arc the bigger crank is .27" different. Thats .135 at the top of the arc and.135 at the bottom of the arc. With the piston .09 in the hole and a .058" head gasket you would have about .001 in the hole. I measured a 78 318 I have here and got the 90 thou number from that. It doesn't look like you could run much of a cam..LOL A thicker head gasket might do the trick, just bench racing...