Sunday, January 10, 2010

GMC Jimmy 302 - Fisher Aluminum Head





As part of our garage crawl tour we stopped into a hidden treasure, owned and created by a master machinist 82 years young.

First we spoke about his Buick Nailhead heads he made out of plate steel, however; my attention quickly turned to a GMC 302 Jimmy with a "Fisher" aluminum head, injected on alcohol, McGurk valve cover reworked by the owner using a rubber 'O' ring instead of the regular cork gasket, and Wayne timing chain cover to accept the Hilborn pump to feed the alcohol to the injectors.

It is not exactly known how many "Fisher" heads were produced; , however; the number is believed to be less than twelve. This motor is an Ardun Flathead killer....

The Jimmy ran a short while ago in a vintage car, out performing any flathead around !

It would be very difficult to place a dollar valve on this motor as it may be the only one, or one of two, in existance....

The first picture, is a 1.8 ratio rocker assembly manufactured by the same machinist, for a stock iron head Jimmy 302....

No it cannot be purchased and sorry I will not provide the owners contact information, which was my promise to this very young man of 82 years.....

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