They came most commonly with 200", 250" six cylinders and 302" V8. Less commonly, some of the early ones had 170" six cylinder engines. How much? Depends on who you talk to. I sold mine to scrap metal yard for $22. It was a 250 that ran perfect. Had a little oil leak but it ran perfect.

check the classifieds on Ford Maverick Information Site - The largest Ford Maverick/Mercury Comet community. Lots of times they are doing 6 cyl. to V8 swaps, and they either GIVE the old 6 away or trade it for something they might need....like...say 2.3 motor mounts

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record breaking '75 Maverick bracket car 2 time track champion, '84 Mustang LX bracket car, '78 Fairmont Futura, '86 Merkur XR4Ti, '95 F250 PSD, 00 F150, '03 SVT Lightning (DSG) #888