GM Performance Timing Chain and Gear Set, Extreme Duty, Single Roller, Steel Sprockets, Chevy, 350, LT1, Set (PART #GMP-12370835)

GM Performance Extreme Duty roller timing chain sets aren't production-replacement components, but they are a great performance upgrade. They're for 1995 and newer "Gen II" LT1 and LT4 engines. The sets include a roller timing chain plus steel cam and crank sprockets, as well as a steel water-pump gear, and are for use with pin-drive camshafts only.

SPECIFICATIONS

Brand GM Performance
Manufacturer's Part Number 12370835
Part Type Timing Chain and Gear Sets
Product Line GM Performance Extreme Duty Timing Chain Sets
Timing Chain Included Yes
Timing Chain Style Single roller
Maximum Advance/Retard at Camshaft None
Maximum Advance/Retard at Crankshaft None
Cam Gear Included Yes
Cam Gear Material Steel
Crank Gear Included Yes
Crank Gear Material Steel
VVT Gear Included No
Tensioner Included No
Thrust Bearing Included No
Bolts/Studs Included No
Gaskets Included No
Offset Bushings Included No
Quantity Sold as a set.
Notes Timing chain has a 1/2 in. pitch. Can be installed on Generation 1 LT1, if the OptiSpark I is updated to the new, OptiSpark II ignition. This will require a new distributor, new front cover, and cam change to second design cam, the nose is different.

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