Looking for some info on big block 902 series heads. Searched google to little luck. Thanks in advance
Similar flows and port shapes to the 346 and 452, but more prone to cracking in the exhaust seat and between the intake and exhaust seats. Pass on them for that reason if you have other options.
I would follow Jim's advice as he has a lot of experience in the area.....BUT FWIW, I figured I'd throw this out there. Those are the heads my friend has on his car nicknamed "5300". It's a 76 Grand Fury wagon that weighs 5300 pounds and runs 12.80s with a stock bore and stroke 440. They are unported. I was not aware they were more prone to cracking. But then I have not seen that many, either. They can be made to work obviously, if that's what you have.
Oh yeah for sure. I will take his advice. I'm kind of collecting big block heads for some reason. I've got 452s 516s and now 902...all free. They all need work so if I decide to run any of them, I'd probably go 516s based on what I've read so far.
Yeah, guess if I ever need a boat anchor, I'll have a couple....You're doin the opposite of what I did a few summers ago. I scrapped some 452s, 346s, 906s and some 915s. Had to have the money. Tried to GIVE them away here but nobody wanted um.