May 21, 201213 yr Did Valves on DesertFind today. I'll let the numbers speak for themselves. Spec is .010 intake, .014 exhaust. Pass side #1 and 3. #1 intake .029 #1 Exhaust .030 #3 intake .031 #3 exhaust .029 Drivers 2-4 2 intake .030 2 exhaust...040 4 intake .026 4 exhaust .029 1980 EA71 motor. 121K. I can safely assume they have NEVER been done. It IS much quieter and actually has some power now.
May 22, 201213 yr My '84 was the same way, couldn't believe it. Those EA's just want to go, to hell with specifications!
May 22, 201213 yr Author My '84 was the same way, couldn't believe it. Those EA's just want to go, to hell with specifications! Even with valves that far out, I made a 320 mile trip this weekend, over some 6K ft climbs and knocked down 34.8MPG @70ish.
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