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Old 06-21-2023, 10:57 AM
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Join Date: Feb 2006
Location: Gilroy, CA
Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor
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Quote:
Originally Posted by Buzz View Post
Absolutely right Mr. Bruce! With the Coyote though, one tends to think turn the key and drive mostly worry free. Whenever I think of the old 427 SOHC "cammer" I have flashbacks of stories I've read - two on this site alone - about expensive engines that all ended sadly when they stretched or broke their timing chains and shat engine parts and oil on the pavement.
Coyotes are not without their own set(s) of problems. In fact, they have more chains than a Cammer — four of them, instead of just one! The Cammer certainly has its tender spots, but so does almost any engine we can get today.

From their 100 mm bore center with 92.2 mm bores that only leaves 7.8 mm of gasket surface (~0.3 inches) between cylinders to seal combustion pressures (before chamfering the top of the bores), to an oiling system that oils the overhead cams last in the oiling priority with a secondary chain drive for the intake cams that is tender and easily broken, Coyotes have their own set of tender spots that can easily cost you an engine. Then, of course, when you buy cams, you just don't buy a cam; you buy four cams.

Each engine has its own atta-boys and its own frustrations. Frequently you find yourself just trading one devil for another ...
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