valve size
#2
- GoldOlds
#4
Valves
I believe the W31 had a 2.00" intake, not sure about the exhaust size. It makes sense that you could cut the valve seats out and install the larger valves. But the chances of finding a factory set of W31 heads is pretty low. John
#5
Correct. The #5 heads used on the 68-69 W-31 were cut for big-block sized 2.000 intakes and 1.625 exhausts. Pretty much any SBO heads can be cut for the same. The #5s do not have hardened seats, so cutting for larger valves is easy.
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December 9th, 2012 10:35 AM