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by Mal Marsden - 06/16/22 7:00 pm
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Allan G, JER.Hill, StephenM
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Original Post (Thread Starter)
#876334 04/01/2022 3:43 AM
by StephenM
Does anybody know the standard valve seat dimensions for a 68 thunderbolt head?
Or where to purchase valve seats??
I'm not having any luck finding the dimensions..
Liked Replies
by DMadigan
Another option is '71-'74 2.0L Vin X Ford Pinto valves, intake 1.654", 0.3163" stem, 4.376" long. That would eliminate replacing the guide, you just have to shorten it. "Racing" Pinto valves are far cheaper than Kibblewhite.
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by NickL
PM do oversize valves, saves replacing seats.
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by KC in S.B.
KC in S.B.
Originally Posted by DMadigan
I have not replaced A65 seats but if they are cast in like the triples they have a reverse taper. You could leave part of the seat in and press in a narrow new seat.

+1. Yes, cast in the head with a larger tapered shape at bottom.
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