Will a 360 bored .060" over run hot??

[HfJeff]

I have ended up with 2 360's now. My mechanic tore apart the first one (1977 with factory 4bbl)and it has already been rebuilt once. Pistons are .030" over and are in good shape but the cylinders need honing/rings at minimum (1 rusty cylinder). He is asking me if it is necessary to bore it again, do I want to go through with it. He had a 350 chevy in his nova that was .060" over and it always ran hot. I know they are completely different animals, but would the same concerns apply? I see fastengineparts has a rebuild kit that is .040" also, so I wouldn't necessarily have to go the full .060" over.

My other 360 (1990 with 2bbl) has 125,000 miles and was running when pulled a few weeks ago. I don't think this one has been overhauled. I was going to just drop it in and run it, but I hate to put an old grungy motor in my fresh restoration. So if I'm going to rebuild one of them I may want to do this one .030" over instead.

Any suggestions or recommendations from the motor gurus?

[fuzz401]

have him ck the cyl. and see if .040 will work before going to .060 over

[Rogue Racer]

Will a .060" over 360 run hot? Depends more on the condition and quality of the cooling system than the overbore. Check the .040" over possibility mentioned above first. That will make it possible to continue to use that block in the future.

[HfJeff]

I am going with the Taurus electric fan (high/low/man override), so air flow should not be an issue. The radiator is 1 year old and the motor will get a new water pump. Was just wondering if cylinder wall thickness would become an issue.

Speaking of which, does everyone run a FlowKooler water pump or just a $30 stock replacement? Also, how can tell if I have a 2-core or 3-core rad? (I know it's the newbie question, but I couldn't find any info on it)

[grimgaunt]

along with those run a aluminium radiator (cross flow ) - they are now available from 3 sources for the AMC (dont know if Bulltear sells them)

- Summit
- ZMJeeps (Zack Hiesey's company)
- BJ's offroad

[Goose]

My 360 is .060 over and I have no heating issues, But I would agree that the heating has more to do with condition/capacity of cooling system.. Mine is in a J-10 with a 3 core 6cyl Radiator (was originally a 6cyl truck).