Collection: Big Block GX390 Clone
These parts fit the 7-bolt and 10-bolt big block GX390 clone platform including Predator 420, Duromax 440, Wildcat 460, and our GX500.
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Valve Spring Shims for Big Block Wedge Head and GX390 Clones - 0.015" Thick
Regular price $4.95 USDRegular priceUnit price / perSold out -
Big Block GX and Clone Crankshaft - 69mm Stroke
Regular price $119.95 USDRegular priceUnit price / per -
Big Block GX ARC Billet Aluminum Flywheel - Adjustable Timing- Electric Start - P/N 6622
Regular price $264.95 USDRegular priceUnit price / per -
Big Block GX - PWK Intake Bundle - GX420-Predator 420-Duromax 440-Wildcat 460- BBC GX500
Regular price From $79.95 USDRegular priceUnit price / per -
Big Block GX390 and Clone ARC Racing Billet Connecting Rod - 4.450" P/N 6274
Regular price $149.95 USDRegular priceUnit price / per -
Big Block GX390 and Clone ARC Racing Billet Connecting Rod - 4.410" P/N 6272
Regular price $149.95 USDRegular priceUnit price / per -
Big Block GX390 and Clone ARC Racing Billet Connecting Rod - 4.510" P/N 6774
Regular price $149.95 USDRegular priceUnit price / per -
Big Block GX390 and Clone NR Racing Performance Cam 306-08-07 - GX390 - Predator 420 - 440 - 460 - 500
Regular price $138.95 USDRegular priceUnit price / per -
Big Block GX390 and Clone NR Racing Performance Cam 306-04-11 - GX390 - Predator 420 - 440 - 460 - 500
Regular price $138.95 USDRegular priceUnit price / per -
Big Block GX ARC Billet Aluminum Flywheel - Non Adjustable - Pull Start - P/N 6623
Regular price $184.95 USDRegular priceUnit price / per -
Big Block GX and Clone Stock Valvetrain Kit
Regular price $19.95 USDRegular priceUnit price / per -
Big Block GX ARC Billet Aluminum Flywheel - Non Adjustable - P/N 6623-E
Regular price $234.95 USDRegular priceUnit price / per