lowflying90
Registered User
what is the difference between 1990 heads and 1994/95 heads? anything?
Thanks,
Jeff
Thanks,
Jeff
A further update - I can't see or measure any difference in springs, but on looking closely at the two types of heads, I may have found something. It looks like the cooling jacket on the early ones is just a bit bigger than the later ones. So maybe Ford decided on thicker decks during the 94 redesign because of the HG reliability issues. I have maintained that the problem is with the blocks, there, anyway. So I don't think there is any issue with a mix and match of valvecover gaskets, springs, or later head/early block. But I would NOT equip an engine with one late head and one early head. The year is on the foundry stamp at the right of the exhaust side.