292 Intake Milling Limits

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Nov 2, 2014 | 07:02 PM

mcmurb

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292 Intake Milling Limits

Happy Sunday,

My 292 just had valves redone and was resurfaced. Heads are ECZ-G. Put new Mummert Gaskets on Heads, went to reattach intake and no fit. Suspect i need to mill the intake to fit. Measured the deck tabs on the heads and got .93, .94, .94, and .96 readings off the 1" tabs.

Question, how much do i mill off the intake to accomodate the surface loss on the heads with those readings? What is the limit i can mill off the intake (ecz-9425-B), before the flanges get too thin? If i'm out of material on this intake, what are any other intake options for the 292? Engine is in a 56 f100 used for weekend 45 mph runs to home dept so high performance is not needed.

Thanks in advance for any advice.

Bart

Nov 2, 2014 | 07:10 PM

f5fordgirl

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How much was milled off the heads?

Nov 2, 2014 | 08:37 PM

mcmurb

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at the max its .07" off.

Nov 4, 2014 | 03:46 PM

charliemccraney

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It's 1.4 x the amount removed from the heads, and block, while taking into account any difference in the thickness of the head gasket.

Nov 8, 2014 | 09:55 AM

mcmurb

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Charlie, sorry i was off the grid for so long. Thanks much for the info. That seems about right to me too. off to the machine shop. thanks again, Bart