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
-
Vendor:GSC Power Division
GSC P-D GM LS7 Intake/Exhaust Valve Guide - Set of 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
Vendor:GSC Power Division
GSC P-D GM LS7 Intake/Exhaust Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D SBC Intake/Exhaust Valve Guide 2.25in L x .3415in ID x .502in OD +.003in .35in Taper- Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D SBC Intake/Exhaust Valve Guide 2.25in L x .3415in ID x .502in OD +.001in .35in Taper- Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D GM 2.25in L x .341in ID x .5022in OD .35 TAPER Mngns Brnz Intake/Exhaust Valve Guide - SET 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
Vendor:GSC Power Division
GSC P-D GM 2.25in L x .341in ID x .5022in OD .35in Taper Intake/Exhaust Valve Guide -Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D SBC Intake/Exhaust Valve Guide 2.1in L x .3415in ID x .502in OD +.003in .35in Taper - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D SBC Intake/Exhaust Valve Guide 2.1in L x .3415in ID x .502in OD +.001in .35in Taper - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D GM 2.1in L x .341in ID x .5022in OD .35 TAPER Mngns Brnz Intake/Exhaust Valve Guide - SET 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
Vendor:GSC Power Division
GSC P-D GM 2.1in L x .341in ID x .5022in OD .35in Taper Intake/Exhaust Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D Audi R8 V10 Manganese Bronze Exhaust Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Vendor:GSC Power Division
GSC P-D Audi R8 V10 / Lamborghini Gallardo V10 Manganese Bronze Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Vendor:GSC Power Division
GSC P-D Audi R8 V10 Manganese Bronze Exhaust Valve Guide +.001in Oversize - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Vendor:GSC Power Division
GSC P-D Audi R8 V10 / Lamborghini Gallardo V10 Manganese Bronze Exhaust Valve Guide - Set Of 20
Regular price $109.99Regular price$129.21-$19.22 Sale price $109.99 -
Vendor:GSC Power Division
GSC P-D Audi R8 V10 Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Vendor:GSC Power Division
GSC P-D Audi R8 V10 Manganese Bronze Intake Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Vendor:GSC Power Division
GSC P-D Audi R8 V10/Lamorghini Gallardo V10 Manganese Bronze Intake Valve Guide - Set Of 20
Regular price $109.99Regular price$129.21-$19.22 Sale price $109.99 -
Vendor:GSC Power Division
GSC P-D Audi R8 V10/Lamborghini Gallardo V10 Manganese Bronze Intake Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
Vendor:GSC Power Division
GSC P-D SBC Manganese Bronze Int/Exh Valve Guide 1.95in L x .3415in ID x .502in OD +.003in - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D SBC Manganese Bronze Int/Exh Valve Guide 1.95in L x .3415in ID x .502in OD +.001in - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D GM 1.95in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - SET OF 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
Vendor:GSC Power Division
GSC P-D GM 1.95in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D Ford Mustang 4.6L SOHC 2-Valve Intake Valve Guide Stoper Style +.003in OD - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D Ford Mustang 4.6L SOHC 2-Valve Manganese Bronze Stopper Style Intake Valve Guide - SET OF 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
Vendor:GSC Power Division
GSC P-D Ford Mustang 4.6L SOHC 2-Valve Intake Valve Guide Stoper Style +.001in Oversize OD - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D Ford Mustang 4.6L SOHC 2-Valve Manganese Bronze Stopper Style Intake Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D Ford Mustang 4.6L SOHC 2-Valve Exhaust Valve Guide Stoper Style +.003in OD - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D Ford Mustang 4.6L SOHC 2-Valve Exhaust Valve Guide Stopper Style +.001in Oversize - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D Ford Mustang 4.6L SOHC 2-Valve Manganese Bronze Stopper Style Exhaust Valve Guide - SET OF 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
Vendor:GSC Power Division
GSC P-D Ford Mustang 4.6L SOHC 2-Valve Manganese Bronze Stopper Style Exhaust Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.525in L x .3415in ID x .502in OD +.003in - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.525in L x .3415in ID x .502in OD +.001in - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D GM 2.525in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - SET OF 8
Regular price $68.99Regular price$80.90-$11.91 Sale price $68.99 -
Vendor:GSC Power Division
GSC P-D GM 2.525in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99 -
Vendor:GSC Power Division
GSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.225in L x .3415in ID x .502in OD +.003in - Single
Regular price $8.99Regular price$10.49-$1.50 Sale price $8.99