460 and 706 engine

jason hofacker · Feb 3, 2011

looking to find out how to tell the difference between gas and lp gas cylinder head building a 460 to pull with a 706 gas engine looking to get all i can get out of it figured a lp head would help boost compression.

MIKE FRENCH · Feb 3, 2011

Need a 301 out of a 806 gas or 715 combine with LP manifold, instant 100hp

ejr-IA. · Feb 4, 2011

806 head no. 383666r,706-806 387972r,706-382099r.They show these head no.none are LP heads it is all in the pistons for higher compression.I used a 301 out of a 715 combine in my 460 you gain more HP because the combine turns at a higher RPM like 2800 where the tractor runs 1800 to 2300 plus being a 301cid.Their is a difference in intake manifolds between gas and LP

jason hofacker · Feb 4, 2011

ok thanks but a guy told me he has a high compression head no. 387718 but we can not find this no. any where or its original application do you have any thoughts on this thanks.

jason hofacker · Feb 4, 2011

what is the difference between lp manifold and gas manifold

Anonymous-0 · Feb 5, 2011

I have herd that there is a truck head that works good on these engines. If anybody knows the details on this I would like to know also.

doorman · Feb 6, 2011

The intake and exhaust are seperated giving you a cooler fuel mixture. I have a 460 with the lp manifold and it frosts under a heavy load.the cooler your fuel mix, the more power you get.

mkirsch · Feb 7, 2011

ok thanks but a guy told me he has a high compression head no. 387718 but we can not find this no.

You are getting advice from a competitor in a VERY competitive sport...

I say he was blowing smoke up your butt. He was trying to send you on a wild goose chase for a part that doesn't exist.

460 and 706 engine

jason hofacker

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MIKE FRENCH

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ejr-IA.

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jason hofacker

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jason hofacker

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Anonymous-0

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doorman

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mkirsch

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