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Instruction Sheets for Part Number SUM-G6647-4X
Technical Articles for Part Number SUM-G6647-4X
Summit Racing™ Pro LS Billet Adjustable Single Row Timing Chain Sets and Gears SUM-G6647-4X
Part Number: SUM-G6647-4X
Summit Racing™ Pro LS Billet Adjustable Single Row Timing Chain Sets and Gears
Timing Chain and Gear Set, Adjustable, Billet Steel, Single Roller, 3-Bolt, 4X, Standard Spacing, LS, Kit
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Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SUM-G6647-4X
Part Type:
Product Line:
Summit Racing Part Number:
SUM-G6647-4X
UPC:
190861246270
Timing Chain Included:
Yes
Timing Chain Style:
Single roller
Camshaft Gear Attachment:
3-bolt
Maximum Advance/Retard at Camshaft:
8 degree
Maximum Advance/Retard at Crankshaft:
4 degree
Cam Gear Included:
Yes
Cam Gear Material:
Aluminum
Crank Gear Included:
Yes
Crank Gear Material:
Billet steel
VVT Gear Included:
No
Tensioner Included:
No
Thrust Bearing Included:
Yes
Bolts/Studs Included:
No
Gaskets Included:
No
Offset Bushings Included:
Yes
Quantity:
Sold as a kit.
Notes:
Includes torrington bearing.
Special Attention:
4x cam gear.
Summit Racing™ Pro LS Billet Adjustable Single Row Timing Chain Sets and Gears
Summit Racing™ Pro LS Billet adjustable timing sets and gears provide maximum strength and reliability for your engine build. These single-row chains are precision machined and available in standard, 0.005 under, and 0.010 under lengths for align-honed blocks. Summit Racing™ Pro LS Billet adjustable timing sets and gears work with 3-bolt performance cams and come in both 1x and 4x configurations to match any LS engine.
More product features include:
* Captured degree bushings that allow the cam to be advanced or retarded in 2-degree increments
* The upper gears are compatible with factory LS2 timing chains
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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