600 ford head

kirwan hall farm · Mar 7, 2018

My 600 Ford 134 cu in head is cracked and I have a good 172 cu in head. I have been told that I can use the 172 head as long as I use 134 head gasket. Is that possible? Would they use the same valve train? The 134 uses 7/16"bolts and the 172 uses 1/2"bolts but I see in the catalogues that bushings are available to adapt the 7/16"bolts. How does that sound? Any advice or experience would help before I proceed. Thanks

Fordfarmer · Mar 7, 2018

The valvetrain is the same. The 172 head will drop your compression ratio.

Leroy · Mar 7, 2018

and compression equals power so how much power you would loose I have no idea.

Dean · Mar 7, 2018

You can make it work but, as previously mentioned, you will loose CR, torque and power.

Indeed, some folks install 134 CI heads on 172 CI engines to increase CR.

You will be better off with a 134 CI head.

Dean

GVSII · Mar 7, 2018

Not all 172" heads use 1/2" bolts.

600 ford head

kirwan hall farm

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