boring out?

[bruno89]

How much can be taken out of the cyliners? The reason I ask is be cause I have a motor that came with my wag w/ the #2 piston shatered laying in peices in the oil pan and put a nice big groove into the wall down towards the bottom. I know I would need a new head but I am thinking of rebuilding the block slowly as money becomes avaliable. Thanks. :eek: :eek:

[joe]

Max factory recommended overbore for the 360 is 0.045"

[Crazy_Jeepman]

Usualy when you drop a piston like that the cylinder cracks, and almost always the score is to deep for a rebore. I never waste my time with a block that throws a rod unless it is a rare block, and AMC 360's are not rare, YET! ;)

[Hump]

Standard overbores are .030, .060, and .090 in. A good place to check would be Summit, Jegs, or PAW. Call and ask about their kits for boring. They will be able to tell you how big their kits go, and you can make a decision from that since you will need new internals anyways.

I don't know if you can put a sleeve in a gasoline engine or not, but I know of several farmers that have blown pistons through their deisel blocks and fixed it with a sleeve and some JB weld. I know that yours is not that drastic, but you might just want to have a machinist take a look at it and have him tell you what he thinks.

[joe]

<BLOCKQUOTE>quote:</font><HR>Originally posted by Hump:
Standard overbores are .030, .060, and .090 in. A good place to check would be Summit, Jegs, or PAW. Call and ask about their kits for boring. <HR></BLOCKQUOTE>

Granted those are standard kits for "some" motors but not AMC's. It's not a question of what kits are available but rather how thick of a cyl wall you have left after boring. If AMC recommends a max of 0.045" and you go 0.060" over you're pushing the envelope and risking constant overheating probs.
Worse is the max overbore spec for the 390/401's at only 0.0225"
I personally wouldn't go 60 over on a 360 but then again it's your motor and your money to do with as you see fit smile.gif

[joe]

<BLOCKQUOTE>quote:</font><HR>Originally posted by Hump:
I don't know if you can put a sleeve in a gasoline engine or not.<HR></BLOCKQUOTE>

Yeah you can sleeve a gas motor. Whether or not sleeves are avaiable for AMC motors...I dunno?

[bruno89]

sleeving was another thing i was thinking of. It didn't acutally throw the rod . I think what happened was the exhaust valve stuck and struck the piston since it was in the pan too. The rod and wrist pin was still in good shape, but the cylinder head was messed up pretty bad. Anyway just thinking what I could do with it.

[killroy]

the best I've seen have been with a .030 over, above that and you'll most likely run into over heating issues. I agree with Crazy you probably don't have enough wall left.