Damn, did the math on a blueprint 9.60 deck block and those 399's will only be .128 out of the hole (dome only) on a 4.00 stroke crank..Really? Can someone confirm that? Skirts would be more of an issue unless the stroker crank has shorter counterweights. Bore notching for the rod nuts is a gives as even the 4.00 needed a little kiss with stock rods and a 4.00. Check your piston height with those pistons in your 318 and tell us how deep in the hole they actually sit with a caliper to the top of the dome. Interesting......
6.123 rod
1.655 stroke off cl (half of 3.31)
1.810 compression height
0.140 dome
- 0.060 head gasket
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9.668
-9.600 deck
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+ .068 out of the gasket. if the dome fit the chamber.....Get some big cc 360 heads...
