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Dec 11, 2013 | 04:41 PM

brads93 idi

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From: kilgore ,Texas

need opinions

I haven't been able to drive my truck for over a few months now due to it having a blown head gasket I'm wondering if I put new gaskets on and use the heads from my lower mileaged motor that needs machine work that ill be ok even tho this motor has 318k miles ill probably change the water pump I bought for the other motor just to make sure I don't have any issues with it over heating and blowing a nother gasket ...... I guess what I'm asking is doing all this should I be ok swapping heads or should I keep the originals

Dec 11, 2013 | 06:27 PM

brads93 idi

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From: kilgore ,Texas

And what has me thinking head gaskets is water coming out the exhaust and a lot of pressure coming out the radiator and no sigh of water in the oil

Dec 11, 2013 | 07:06 PM

Macrobb

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You'll know as soon as you take the heads off if it's head gaskets or the dreaded cavitation.

Dec 11, 2013 | 08:29 PM

hairyboxnoogle

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Im guessing head gasket. Why not re-use the heads that are on it if theyre in decent shape?

Dec 11, 2013 | 09:08 PM

brads93 idi

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From: kilgore ,Texas

Idk figured I would use em

Dec 13, 2013 | 12:30 AM

speedwrench72

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From: western washington

tiny crack's can be very hard to see so be careful when looking at the heads.

Dec 13, 2013 | 11:11 AM

airdale94

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From: Topeka,Ks.

Quote:

Originally Posted by brads93 idi

what has me thinking head gaskets is water coming out the exhaust and a lot of pressure coming out the radiator and no sigh of water in the oil

I would be more inclined to suspect a crack. Or like "macrobb" said "cavitation" That's a classic sign of a crack between the water jacket and the exhaust valve port (if you have no signs of external leakage-water or oil) (or water in oil). Once you get them off it should be fairly easy to find the culprit. If it's a crack and not a gasket that combustion chamber will be "cleaner" because it's beind "washed" with hot water. If it's a gasket you should be able to find the "blowout". Looking carefully you have a good chance of seeing a crack. You could always clean them up yourself and see if a machine shop will just magnaflux them. You could post some pictures once you get them off.