The Ford Barn

F1 Flathead · 11-25-2010, 09:20 AM

Looking for some help identifying the cam in my 40 Merc Flathead. The original ower said it was a "3/4 Race" cam bought in Detroit in the 70's. The snout is labled "Dunn" and "Detroit" and stamped "F" in two places. Does anyone recognize it? How 'bout 'Ol Ron? I checked the lift and it measures about .320" like an Isky 88 .
Thanks,
Dan

Ol' Ron · 11-25-2010, 11:27 AM

OOOHHH Yes! the Dunn "W" was one of the best track cams of the era. No telling what a "3/4" would be like.

F1 Flathead · 11-27-2010, 06:51 PM

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Thanks Ron. So you've not heard of a Dunn "F"? I have it out of the engine now so I could do a better check of the lift. Never tried measuring duration. I'll have to do some reading on how to do that. It sure does run nice. Seems to make good power but idles nicely.
Dan

11-25-2010, 09:20 AM	#1
F1 Flathead Member Join Date: May 2010 Location: Brighton Michigan Posts: 47	Flathead Camshaft ID? Looking for some help identifying the cam in my 40 Merc Flathead. The original ower said it was a "3/4 Race" cam bought in Detroit in the 70's. The snout is labled "Dunn" and "Detroit" and stamped "F" in two places. Does anyone recognize it? How 'bout 'Ol Ron? I checked the lift and it measures about .320" like an Isky 88 . Thanks, Dan Last edited by F1 Flathead; 11-25-2010 at 09:53 AM. Reason: fixed typo

11-25-2010, 11:27 AM	#2
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,860	Re: Flathead Camshaft ID? OOOHHH Yes! the Dunn "W" was one of the best track cams of the era. No telling what a "3/4" would be like.

11-27-2010, 06:51 PM	#3
F1 Flathead Member Join Date: May 2010 Location: Brighton Michigan Posts: 47	Re: Flathead Camshaft ID? Sponsored Links (Register now to hide all advertisements) Thanks Ron. So you've not heard of a Dunn "F"? I have it out of the engine now so I could do a better check of the lift. Never tried measuring duration. I'll have to do some reading on how to do that. It sure does run nice. Seems to make good power but idles nicely. Dan