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200 or 250 are all the same head so it wouldn't matter as long as the year is right..

I doubt you'll find a 170 any year after 1970.. so just watch the casting numbers on the head..

C = 1960...

I have a 74 maverick 200 head with hardend seats.. But I'm pretty sure that car was from California, so maybe Ca cars went lead free first??

Any later year head would be an improvement over the...

A 1966 200 block would be drilled for both bellhousings..

My 68 170 block is drilled for both bellhousings and it has 3 freeze plugs which would still make it a 4 main block.. Weird huh??
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Don't forget Clifford performance as another source for speed parts..

Classic inlines makes an aftermarket aluminum cylinder head for the small sixes.. very cool and a little pricey.. $1500..
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