| Listed in parts books | Not catalogued by year yet |
1966 ONLY TAPPET USED
A 1966-only tappet, part number 70-6490U.
This is a tappet, part number 70-6490U, and the catalog notes it saw use only in the 1966 model year. If your parts book calls out this exact number, that's the year it was fitted, so it's worth double-checking your engine's tappets against this before you order.
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A tappet rides between the cam and the pushrod, following the cam lobe profile and passing that motion up the line to open and close the valve. It's a wear part, and getting the right one matters for how the valve train sounds and behaves.
We don't have more detail on this one beyond the year callout, so if you're not certain your engine takes this specific tappet, call the shop and we'll help confirm fitment before you order.
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