1971 Torino 500 2 door hardtop

[Rose Racing]

Originally Posted by Mike Graham

Don't pay any attention to anything but the blueprint spec that NHRA has. They list 2 different valve sizes for the 302 1.79 1.46 1.78 1.45. Remember you have +.005 and -.015 tolerances. If you are careful you can run the same valve in either engine. You can get a Torino to 3410 with driver. We did it.

I did not know of the tolerance rule. I cant find any 1.79 intake valves except for a 4.6 ford