I ran the numbers through the diamondracing.net's calculator. I also looked up the CC of those 8-VR pistons.
Bore: 4.160 (40 over 400 bore)
Stroke: 3.75
.020 deck clearance (typical for rebuilder pistons)
14CC dish for the 8VR pistons (per several online sources)
100CC for 6X-8 heads
.039 gasket thickness
Compression Ratio: 7.5:1. as it sits
__________________
I could explain all this to the girl at the parts store, but she'd probably call the asylum.
White '67 LeMans 407/TH350/Ford 3.89... RIP
Red '67 LeMans. 407/TH400/Ford 3.25
|