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.
Skip to product grid
-
Sold out
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$7.59-$0.60 Sale price $6.99 -
Sold out
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 $74.99Regular price$87.61-$12.62 Sale price $74.99 -
Sold out
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$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Exhaust Valve Guide Stopper Style - Set
Regular price $74.99Regular price$87.61-$12.62 Sale price $74.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Exhaust Valve Guide Stopper Style OVERSIZE +.003 - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Exhaust Valve Guide Stopper Style OVERSIZE +.001 - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Exhaust Valve Guide Stopper Style - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Intake Valve Guide Stopper Style OVERSIZE +.003 - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Intake Valve Guide Stopper Style OVERSIZE +.001 - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Intake Valve Guide Stopper Style - Set
Regular price $74.99Regular price$87.61-$12.62 Sale price $74.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Subaru EZ30 PHZ 1 Intake Valve Guide Stopper Style - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$0.60
Vendor:GSC Power DivisionGSC Honda K20C1 CTR Exhaust Valve Guide +.003in OD - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$0.60
Vendor:GSC Power DivisionGSC Honda K20C1 CTR Exhaust Valve Guide +.001in OD - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC Honda K20C1 CTR (STD) Exhaust Valve Guide - Set of 8
Regular price $49.99Regular price$58.41-$8.42 Sale price $49.99 -
Sold out
Vendor:GSC Power DivisionGSC Honda K20C1 CTR (STD) Exhaust Valve Guide - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Honda Civic Type-R K20C1 (STD) Intake Valve Guide - Set of 8
Regular price $49.99Regular price$58.41-$8.42 Sale price $49.99 -
-$12.62Vendor:GSC Power Division
GSC P-D Honda J35 Manganese Bronze Intake Valve Guide - Set of 12
Regular price $74.99Regular price$87.61-$12.62 Sale price $74.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Toyota 2JZ Exhaust Valve Guide for 6.6mm Valve Stem .003in Oversize - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$12.62Vendor:GSC Power Division
GSC P-D Honda J35 Manganese Bronze Exhaust Valve Guide - Set of 12
Regular price $74.99Regular price$87.61-$12.62 Sale price $74.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Toyota 2JZ Exhaust Valve Guide for 6.6mm Valve Stem .001in Oversize - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$12.62
Vendor:GSC Power DivisionGSC P-D Toyota 2JZ Exhaust Valve Guide for 6.6mm Valve Stem - Set of 12
Regular price $74.99Regular price$87.61-$12.62 Sale price $74.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Ford Raptor 3.5L Ecoboost Intake/Exhaust Valve Guide Set w/ Stopper - Set of 12
Regular price $74.99Regular price$87.61-$12.62 Sale price $74.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Ford Raptor 3.5L Ecoboost Intake/Exhaust Valve Guide w/ Stopper - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D 03-07 Dodge Viper 2.615in TL 0.5145in OD 0.311in ID Intake/Exhaust Valve Guide -Set of 10
Regular price $102.99Regular price$120.62-$17.63 Sale price $102.99 -
-$1.54
Vendor:GSC Power DivisionGSC P-D 03-07 Dodge Viper (STD) 2.615in TL 0.5145in OD 0.311in ID Intake/Exhaust Valve Guide -Single
Regular price $10.99Regular price$12.53-$1.54 Sale price $10.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4575in OD 0.2756in ID Intake Valve Guide - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4555in OD 0.2756in ID Intake Valve Guide - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$12.62
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ Manganese Bronze Intake Valve Guide - Set of 12
Regular price $74.99Regular price$87.61-$12.62 Sale price $74.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4545in OD 0.2756in ID Intake Valve Guide - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4575in OD 0.2756in ID Exhaust Valve Guide - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4555in OD 0.2756in ID Exhaust Valve Guide - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$12.62
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ Manganese Bronze Exhaust Valve Guide - Set of 12
Regular price $74.99Regular price$87.61-$12.62 Sale price $74.99 -
Sold out
Vendor:GSC Power DivisionGSC P-D Toyota 1FZ 1.650in Length 0.4545in OD 0.2756in ID Exhaust Valve Guide - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D FA20 BRZ/FRS/FT86 Intake Valve Guide Oversized +.003in OD - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D FA20 BRZ/FRS/FT86 Intake Valve Guide Oversized +.001in OD - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99
