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674848 Quick Adjust Timing Set 1965-1996 Big Block Chevy [Merlin Engines]
InfoVehicle Info Needed
CLOYESPART NUMBER: 220-9-3747

674848 Quick Adjust Timing Set 1965-1996 Big Block Chevy [Merlin Engines]

$33724$354.99You Save$17.75
ShippingShips on 09/16/2026
Lowest PriceLowest Price Guarantee

Big Block Chevy
Quick Adjust Timing Set
  • 1965-1996 Big Block Chevy [Merlin Engines]
  • Quick +/- 6 Degrees of Adjustment
  • 3 Keyway Crank Sprocket
  • Thrust Bearing Included
  • Sold as a Set

    9-3747 Features:

    • Patented Quick Adjust Allows Plus/Minus 6 Degrees
    • Induction Hardened Billet Steel Sprockets and Thrust Bearing
    • 3 Keyway Crank Offers More Adjustment Capability
    • Premium True Roller Chain w/0.250 in. Diameter Rollers
    • Cold-Rolled And Hardened To Exact Standards
    • Increased Load and RPM Capabilities
    • Each Set Is Custom Hand-Matched At Cloyes Factory

    Direct replacement for NAPA 93747

      • Unmatched Adjustment in a Heavy-Duty Timing Set

      Cloyes patented Quick Adjust Timing Chain Sets are a popular choice offering induction heat-treated billet steel crank sprockets with three keyways and a precision factory hand-matched center distance, allowing you to advance or retard your timing +/- 6 degrees of adjustment.

    Part TypeTiming Chain and Gear Set
    Product LineCloyes Quick Adjust Timing Chain Sets
    BrandCLOYES
    Package Height2.0
    Package Width7.5
    Package Length7.5
    Weight4.5 PG
    Part CategoryPerformance Parts
    Chain IncludedYes
    Thrust Bearing IncludedNo
    Crank Sprocket MaterialBillet steel
    Cam Sprocket IncludedYes
    QuantitySold as a set
    Cam Sprocket MaterialBillet steel
    Chain MaterialSteel
    Bolts/Studs IncludedNo
    Engine Make/SizeMerlin Big Block
    Crank Sprocket IncludedYes
    Gaskets IncludedNo
    Offset Bushings IncludedNo
    Timing Chain StyleDouble roller
    Maximum Advance/Retard At Camshaft6 degree
    Part FitmentSemi Universal
    Vendor Part Number9-3747
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Please click here to download the instructions PDF file

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    Some parts are not legal for use in California or other states with similar laws / regulations
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