Collection: Duromax 500 / Rato R500-V
These parts are for the Rato R500-V engine, which is commonly known as the Duromax 500. Think "son of GX390" with extra beefy castings that support a 94mm bore and a 72mm stroke right out of the box. Thicker and heavier in every dimension, this engine has TONS of potential with a great cylinder head that rocks a 40mm intake valve!
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94mm Piston for Big Block GX and Clones and R500-V
Regular price $29.95 USDRegular priceUnit price per -
M8x20 1.25 Thread Stainless Exhaust Bolts For Big and Small Block GX and Clones - Pair
Regular price $4.95 USDRegular priceUnit price per -
Big Block GX390 and Clone - Keepers - GX390-Predator420-Duromax 440-Wildcat 460-GX500
Regular price $15.95 USDRegular priceUnit price per -
Rato R500-V Rocker Arm
Regular price $9.95 USDRegular priceUnit price per -
Fuel Pump Pulse Barb Fitting Kit for All BBC Intake Adapters
Regular price $9.95 USDRegular priceUnit price per -
Big Block GX390 - Keepers - For 6.5mm Aftermarket Type Valves With Titanium Retainers
Regular price $31.95 USDRegular priceUnit price per -
Duromax 500 / Rato R500-V Stock Replacement Valve Spring Set
Regular price $14.95 USDRegular priceUnit price per -
Big Block GX and Duromax 500 - 6.5mm Valve Lash Caps - Pair
Regular price $9.95 USDRegular priceUnit price per -
Duromax 500 / Rato R500-V Exhaust Gasket
Regular price $4.95 USDRegular priceUnit price per -
Duromax 500 / Rato R500-V Charging System
Regular price $149.95 USDRegular priceUnit price per -
Duromax 500 / Rato R500-V Side Cover Dowel Set
Regular price $2.95 USDRegular priceUnit price per -
Duromax 500 / Rato R500-V Head Dowel Pin Set
Regular price $4.95 USDRegular priceUnit price per -
Duromax 500 / Rato R500-V Pushrod Set
Regular price $19.95 USDRegular priceUnit price per -
Duromax 500 / Rato R500-V Cam Follower Set
Regular price $14.95 USDRegular priceUnit price per -
Duromax 500 / Rato R500-D / R500-V Rocker Arm Shaft Retainer Plate
Regular price $3.99 USDRegular priceUnit price per -
Duromax 500 / Rato R500-V Rocker Arm Shaft
Regular price $6.95 USDRegular priceUnit price per
