NEWS PARTS JEEP & 4x4 ATV & UTV

Head Bolts?

1267 Views 6 Replies 5 Participants Last post by kansasjeeper, Apr 11, 2005

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Discussion Starter · Jan 5, 2004

I just pulled the head off of my 258 yesterday evening to get a broke head bolt out of the block, lucked out, it came out without having to drill and use an ease-out, but I heard or read awhile back that on the 258 when you do a head set that you need to replace the entire set of head bolts. I ain't never done that on anything else I've ever rebuilt or replaced the head gasket on. By the way, the broke bolt was at a waterport location. And what may have caused the bolt to break after it was torqed down and checked again after the first hundred or so miles? Stress or just a weak bolt? It was approx. 2 years ago when I replaced the cam and lifters and timing chain and gears. Any opinions? Thanks.

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1830

· #2 · Jan 5, 2004

I would say what caused it to break would be somebody who re-used it...did I say that?

No seriously, you should NEVER re-use head bolts, I know that there will be a ton of posts now from people who will say "I've been doing that for 350 years and never broken a bolt." Well I suppose that's getting lucky....You are *always* supposed to use a new set of head bolts when you pull the head....

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1830

· #5 · Jan 6, 2004

On the 4.0 head writeup that's out there on the net, wherever it is, there is a mopar performance part # for a set that is $22 i think for all of them....Through the dealer the plain jane head bolts are like $10 a piece or something.....

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