Exhaust bolts amc 360

[sethdowd]

What is suggested for exhaust bolts on an early 70's 72-73 360. The ones I had before were pretty hard to get on and rusted pretty bad, not to mention came loose. Also, what is the correct size bolt for this motor?

[sethdowd]

hello (crikets)

[tufcj]

I've just used standard 3/8" grade 8 bolts with lock washers. Later heads used smaller bolts (5/16" ?) on the ends. I think length would be 1 3/4" as long as you use a washer, that length might bottom without one. I usually run a bottoming tap down the thread holes before running new bolts in.

Bob
tufcj

[msalaba]

My '73 304 were all 3/8" and the '78 & '85 360 had (2) 3/8 and (2) 5/16 per side. All these had a hole drilled ~1" in the center of the bolt and I can't remember for the life of me what this was for.

Looking through the OMIX catalog, I did not find a listing for these bolts.