Quote:
Originally Posted by Jay S
I should have looked at those part numbers closer. Those are pin oiled. I”ll look into those closer.
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I looked it up and Johnson still does not appear to have pin oiling for a Pontiac. That link that says they are pin oiled appears to be wrong. The 3rd number in the part number should be a 2 or a 3 for pin oiling. All the Pontiac offering the 3rd number is a 1.
The 21160 is .3” taller than the 21120. I recalled that was what it was but I wanted to make sure. That is usually a feature for aftermarket blocks and higher lift cams. I would have to double check what the oil band position is.