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Old 09-22-2011, 09:11 AM's Avatar is online now
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The later integral head engines will accept the early cylinder heads. But they are not usually compatible with unlead gas. (need hard exhaust seats)

I have done several of these swaps for customers. As uncracked integral heads are unavailable from the local bone yards. My rebuilder suppliers are very proud $$$ of these heads as usable cores are hard to obtain.

The linkages and exhaust have to be changed. If used in an originally integral chassis.
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