Robust Engine Internals
Boost your vehicle’s power from within with our JDM Engine & Power - Engine Internals from HD Werks. Designed for high-performance and durability, these original aftermarket parts are engineered in Japan for racing excellence. Infused with DOHC precision and inspired by Honda and Toyota innovation, our engine internals deliver unmatched power and reliability. Shop our collection for components that ensure your engine performs optimally, enhancing efficiency and driving excitement. Experience the difference of superior craftsmanship and authentic JDM engineering.
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Vendor:GSC Power DivisionGSC P-D Ford 5.0L Coyote Gen 1/Gen 2 Int/Exh Valve Guide w/Stopper +.003in Oversize OD - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Ford 5.0L Coyote Gen 1/Gen 2 Int/Exh Valve Guide w/Stopper +.001in Oversize OD - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Ford 5.0L Coyote Gen 1/Gen 2 (STD) Intake/Exhaust Valve Guide w/Stopper - Set of 16
Regular price $103.99Regular price$103.37Sale price $103.99 -
Vendor:GSC Power DivisionGSC P-D Ford 5.0L Coyote Gen 1/Gen 2 (STD) Intake/Exhaust Valve Guide w/Stopper - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Nissan SR20DET/RB26 Exhaust Valve Guide w/Stopper +.003in Oversize OD - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Nissan SR20DET/RB26 Exhaust Valve Guide w/Stopper +.001in Oversize OD - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Nissan SR20DET (STD) Exhaust Valve Guide w/Stopper - Set of 8
Regular price $51.99Regular price$51.69Sale price $51.99 -
Vendor:GSC Power DivisionGSC P-D Nissan RB26 (STD) Exhaust Valve Guide w/Stopper - Set of 12
Regular price $77.99Regular price$77.53Sale price $77.99 -
Vendor:GSC Power DivisionGSC P-D Nissan SR20DET/RB26 Exhaust Valve Guide w/Stopper - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Nissan SR20DET/RB26 Intake Valve Guide w/Stopper +.003in Oversize OD - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Nissan SR20DET/RB26 Intake Valve Guide w/Stopper +.001in Oversize OD - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Nissan SR20DET (STD) Intake Valve Guide w/Stopper - Set of 8
Regular price $51.99Regular price$51.69Sale price $51.99 -
Vendor:GSC Power DivisionGSC P-D Nissan RB26 (STD) Intake Valve Guide w/Stopper - Set of 12
Regular price $77.99Regular price$77.53Sale price $77.99 -
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Vendor:GSC Power DivisionGSC P-D Nissan SR20DET/RB26 STD Intake Valve Guide w/Stopper - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ2 1.75in Len .34in Protrusion +.003 OS Exh Valve Guide Stopper Style - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ2 1.75in Len .34in Protrusion +.001 OS Exh Valve Guide Stopper Style - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 2 1.75in Length .34in Protrusion Exhaust Valve Guide Stopper Style - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 2 1.34in Len .345in Protrusion +.003 Int Valve Guide Stopper Style - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 2 1.75in Len .34in Protrusion Exhaust Valve Guide Stopper Style - Set of 12
Regular price $77.99Regular price$77.53Sale price $77.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 2 1.34in Len .345in Protrusion +.001 Int Valve Guide Stopper Style - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 2 1.34in Len .345in Protrusion Intake Valve Guide Stopper Style - Set of 12
Regular price $77.99Regular price$77.53Sale price $77.99 -
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 2 1.34in Len .345in Protrusion Intake Valve Guide Stopper Style - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Exhaust Valve Guide Stopper Style - Set
Regular price $77.99Regular price$77.53Sale price $77.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Exhaust Valve Guide Stopper Style OVERSIZE +.003 - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Exhaust Valve Guide Stopper Style OVERSIZE +.001 - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Exhaust Valve Guide Stopper Style - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Intake Valve Guide Stopper Style OVERSIZE +.003 - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Intake Valve Guide Stopper Style OVERSIZE +.001 - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Intake Valve Guide Stopper Style - Set
Regular price $77.99Regular price$77.53Sale price $77.99 -
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Intake Valve Guide Stopper Style - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC Honda K20C1 CTR Exhaust Valve Guide +.003in OD - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC Honda K20C1 CTR Exhaust Valve Guide +.001in OD - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC Honda K20C1 CTR (STD) Exhaust Valve Guide - Set of 8
Regular price $51.99Regular price$51.69Sale price $51.99 -
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Vendor:GSC Power DivisionGSC Honda K20C1 CTR (STD) Exhaust Valve Guide - Single
Regular price $6.99Regular price$6.71Sale price $6.99 -
Vendor:GSC Power DivisionGSC P-D Honda Civic Type-R K20C1 (STD) Intake Valve Guide - Set of 8
Regular price $51.99Regular price$51.69Sale price $51.99