The Ford Barn

Craig CT · 01-17-2015, 08:59 PM

Hi all; Can anyone tell me the OD of the standard valve seat insert and the recommended cutter size for it. Thanks in advance, Craig.

Kurt in NJ · 01-18-2015, 01:40 AM

original Ford--
40-6057-c 1.6530 --1.6535 od
40-6057-d 1.6330-1.6335 od

I would suggest measuring any seats you get before cutting the hole to fit them into

JWL · 01-18-2015, 05:57 AM

For the original seat ring the cutter blade measures a few 10ths over 1.625. However, it cuts a slightly larger diameter counterbore. The larger diameter seat ring was for salvaging blocks which had a loose ring.

rotorwrench · 01-18-2015, 09:57 AM

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I'd purchase new stellite seats first then measure them to find a cutter that will set you up with an interference fit. Just like cylinder bores, you would never want to fit a close tolerance part without the part you are going to put in there in hand.

01-17-2015, 08:59 PM	#1
Craig CT Senior Member Join Date: May 2010 Location: Sherman, CT Posts: 330	valve insert and cutter Hi all; Can anyone tell me the OD of the standard valve seat insert and the recommended cutter size for it. Thanks in advance, Craig. __________________ " When I was a boy of fourteen, my father was so ignorant I could hardly stand to have the old man around. But when I got to be twenty-one, I was astonished at how much he had learned " Mark Twain.

01-18-2015, 01:40 AM	#2
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,159	Re: valve insert and cutter original Ford-- 40-6057-c 1.6530 --1.6535 od 40-6057-d 1.6330-1.6335 od I would suggest measuring any seats you get before cutting the hole to fit them into

01-18-2015, 05:57 AM	#3
JWL Member Emeritus Join Date: May 2010 Location: Fitzgerald, Georgia Posts: 2,204	Re: valve insert and cutter For the original seat ring the cutter blade measures a few 10ths over 1.625. However, it cuts a slightly larger diameter counterbore. The larger diameter seat ring was for salvaging blocks which had a loose ring.

01-18-2015, 09:57 AM	#4
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,431	Re: valve insert and cutter Sponsored Links (Register now to hide all advertisements) I'd purchase new stellite seats first then measure them to find a cutter that will set you up with an interference fit. Just like cylinder bores, you would never want to fit a close tolerance part without the part you are going to put in there in hand.