FE 360 cylinder bores
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1st Gear
Joined: May 2024
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FE 360 cylinder bores
Hey guys,
I am helping my daughter's 16yr old boyfriend work on his 1970 F100 that he bought. We pulled the engine and whoever was in there before managed to reinstall cylinder 4 without a retaining clip and the wrist pin.... well did a number on the cylinder bore to say the least. All cylinders are measuring 4.08" x 6 5/16" x not sure of the cylinder wall as its too difficult to make out where the block stops and the sleeve starts.
Anyway, given that the largest sleeve I have seen from Jegs is 4.05 so I'm guessing that its been overbore by .03. So what to do? This isn't going to be a high HP engine. He bought it so I could teach him how all this stuff works. Would you buy a 4.05 sleeve and have it bored I don't think we could put a stock 4.05 sleeve in it while all the others are measuring 4.08.
Any advice would be greatly appreciated.
We are trying to do this while being as cost conscious as possible given that he is paying for everything.
Thanks!
I am helping my daughter's 16yr old boyfriend work on his 1970 F100 that he bought. We pulled the engine and whoever was in there before managed to reinstall cylinder 4 without a retaining clip and the wrist pin.... well did a number on the cylinder bore to say the least. All cylinders are measuring 4.08" x 6 5/16" x not sure of the cylinder wall as its too difficult to make out where the block stops and the sleeve starts.
Anyway, given that the largest sleeve I have seen from Jegs is 4.05 so I'm guessing that its been overbore by .03. So what to do? This isn't going to be a high HP engine. He bought it so I could teach him how all this stuff works. Would you buy a 4.05 sleeve and have it bored I don't think we could put a stock 4.05 sleeve in it while all the others are measuring 4.08.
Any advice would be greatly appreciated.
We are trying to do this while being as cost conscious as possible given that he is paying for everything.
Thanks!
Believe Nothing
Joined: Jun 2004
Posts: 7,519
Likes: 403
From: W. Central FL.
i would ask the questions of local machine shops if you are lucky enough to still have them in your area.
EDIT: I commend you for showing that young man the workings of these old things. It will stay with him.
EDIT: I commend you for showing that young man the workings of these old things. It will stay with him.
Cargo Master
Joined: Oct 2020
Posts: 2,703
Likes: 798
Sleeves are available in all sorts of different bore sizes and lengths. They come rough bored on the ID so after it is pressed into the block it is then bored to whatever bore size is needed. Most of the time they are about .030 or so undersize. You just need to look through the catalog and find something that will work. I'd sleeve that one cylinder and then hone the rest of the block .010 to .040 over, 4.090 bore size. The reason for this cleanup is because when the sleeve is pressed in with a couple of thousandths of interference it will distort the adjacent cylinders somewhat. .010 over will make the block as good as new.
Mountain Pass
Joined: Mar 2016
Posts: 198
Likes: 31
From: 06804 / 38583
Doesn’t answer your question, however if you’re within easy driving distance to Brookfield CT come help pull the good running 360 from my ‘73 F250 and it’s yours.
I need a little motivation to swap in this other engine I bought a couple years ago!
Mel
I need a little motivation to swap in this other engine I bought a couple years ago!
Mel
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