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Crankshaft, Stroker, Duromax 500, Rato R500-V, 76mm (Fits GX390, 36mm Size Rods)
Crankshaft, Stroker, Duromax 500, Rato R500-V, 76mm (Fits GX390, 36mm Size Rods)
 
Our Price: $160.00

Stock Status:In Stock

Part #: 76CRANK

Balancing

Electronic Balance Crankshaft (With Mallory) [+$152] **Please email or make an order comment giving the balancing specs. We require either the piston, rod, & wrist pin part # or the weights of each part. NR Racing must have these weights to balance the crank. Allow 1 to 3 weeks for balancing.

Qty:
Description -
 
Forged Steel Stroker Crankshaft for Duromax 500 / Rato R500-V with GX390 Sized 36mm Rod Journal
This stroker crankshaft works with GX390 rods!
Can be combined with an ARC 6272 4.410" length rod and stock Duromax 500 cast piston.

Can be combined with an ARC 6274 4.450" length rod and a 1" compression height x 20mm pin x 94mm bore piston to build a 527cc Duromax 500 engine with a billet rod. Will work with Niche 94mm Piston Kit & JE 94mm Forged Piston Kit.

*BOTH PISTON AND ROD COMBOS WILL NEED SLIGHT MACHINE WORK DONE, BUT THE NICHE AND JE PISTONS ONLY NEED ABOUT 0.030" REMOVED FROM THE SIDES OF THE SMALL END OF THE ROD.
Crankshaft Specs
  • Stroke: 76mm
  • Rod Journal: 36mm - Just like GX390
  • Output Diameter: 1" - Just like GX390

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