1974 roadrunner frankencar HELP!!!
03-27-2011, 11:14 AM
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1974 roadrunner frankencar HELP!!!
I've got a 1974 plymouth roadrunner that I bought when I was 18. Done nothing but research so far. Found out the car was a 318 car but now has a 360 underneath. After discovering no compression I pulled and disassembled motor. I've checked my casting numbers and here goes... its a 1977 block with the original crank and one original head. But the other head is a 1975 of of god knows what. Found the compression ratios for both and want to know if I can make the work maybe with porting milling and valves? One is a 4027596 (original to motor) 66.0-72.5cc and the mismatch is a 3769974 with 65.0-73.0 cc. Any help is great! If I sound stupid sorry I'm 22 and this is my first classic build but I have a great passion for cars and an open mind to any suggestions.
03-29-2011, 07:30 PM
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Well we will see
I've sent the heads to a machine shop today to be cc'd, tested, cleaned and have a valve job. So if you are interested in finding out if this can work keep checking back. Guess I'll be the test subject lol.
I've sent the heads to a machine shop today to be cc'd, tested, cleaned and have a valve job. So if you are interested in finding out if this can work keep checking back. Guess I'll be the test subject lol.
oh well found a motorhome 440 with 727 for $200 bucks!!!!
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