Cloyes 9-3110A hex adjust double roller timing chain.
Designed for Chevy 396, 402, 427, 454 engines.
Features a special bushing that goes over the cam gear and aligns with markings on the gear.
Use an allen wrench to adjust the cam timing in small increments up to 3 degrees advance/retard at the camshaft and up to 6 degrees advance/retard at the crankshaft.
SAE 1144 billet cam and crank gears hardend to Rc48 and a true double roller chain. Cold rolled .250" rollers.
Fits under the stock timing cover.
No machining required, no fumbling with cam bushings.
TECH NOTE: Will not work with OEM factory roller cams.
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