Why Choose RPM.
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RPM Engines Include:
- Standard one-year warranty
- OEM Polaris oil pump
- Hot Rods heavy-duty crankshaft
- Hot Rods heavy-duty connecting rods
- Vertex forged piston kit
- Vertex standard bore plated cylinder
- Hot Cams heat-treated timing chain and oil pump chain
- Kibblewhite upgraded bronze valve guides
- Hot Cams forged, nitrate-coated valves
- Hot Rods replacement crankshaft and balancer bearings
- Vertex gasket and seal kit
- Hot Cams upgraded spring-style tensioner (replaces problematic hydraulic tensioner)
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Engine Remanufacturing Process:
All engines are fully disassembled and inspected. Cases and heads are pressure-washed with hot water to remove contaminants. Components with significant buildup are media blasted. Once cleaned and inspected, the engine is ready for reassembly.
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Lead Times:
Remanufacture My Engine: Ships within 7 business days of receiving your engine
Crate Engines: Ship within 1–2 business days
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Reassembly Highlights:
- Crank and rod bearings are plastigauged to confirm proper tolerances
- Piston ring gaps are measured and confirmed to be within spec
- Piston rings are clocked at alternating 180-degree positions
- Cylinders are cleaned to remove machining oils and debris
- Valve guides are replaced with upgraded bronze guides and precisely bored
- Valve seats are machined for proper valve fit
- Valves are lapped to ensure a proper seal
- Valve tappets are machined to meet overhead clearance specifications
- Cylinder heads are resurfaced to ensure a clean, flat sealing surface