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The Leader in GX Honda & Chinese OHV Performance
The leader in GX Honda & Chinese OHV Performance
Similar to our Stage 3 Kit, but Adds a Ported and Milled Head with Stainless Valves, a Stud Kit, & HD Valve Train Components. This Kits Allows up to 35+ HP.
Similar to That of the Stage 3, but Adds a Ported and Milled Head with Stainless Valves, a Stud Kit, and HD Valve Train Components. Allows up to 35+ HP from a 420 Engine.
Similar to That of the Stage 3, but Adds a Ported and Milled Head with Stainless Valves, a Stud Kit, and HD Valve Train Components. Allows up to 35+ HP Out of a GX390 Engine.
Stage 4 Kit for 440 Duromax, featuring everything from a Ported and Milled Head with Stainless Valves, Stud Kit, and HD Valve Train Components. Allows up to 35+ HP from a 440 Engine.
Stage 4 Kit for 460cc 92mm 10-Bolt Engines, featuring everything from a Ported and Milled Head with Stainless Valves, Stud Kit, and HD Valve Train Components. Allows up to 40 HP from a 460 Engine.