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:Cometic GasketCometic .162in x .288in .333in x .219in Viton Positive With Ring Valve Stem Seal
Regular price $5.99Regular price$6.34-$0.35 Sale price $5.99 -
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Vendor:Cometic GasketCometic 0.344in x 0.530in x 0.527in x 0.674in Viton Valve Stem Seal - Metal Jacket - 16 Pack
Regular price $35.99Regular price$39.67-$3.68 Sale price $35.99 -
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Vendor:Cometic GasketCometic 0.344in x 0.562in x 0.485in x 0.677in Viton Valve Stem Seal - Positive Ring & Band - 16 Pack
Regular price $34.99Regular price$37.81-$2.82 Sale price $34.99 -
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Vendor:Cometic GasketCometic 11/32in x 0.500in x 0.531in x 0.623in Viton Valve Stem Seal - Metal Jacket - 16 Pack
Regular price $31.99Regular price$35.11-$3.12 Sale price $31.99 -
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Vendor:Cometic GasketCometic 6 x 11.75 x 15 x 14.6 Viton Metal Jacket Valve Stem Seal - 16 Pack
Regular price $23.99Regular price$26.52-$2.53 Sale price $23.99 -
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Vendor:Cometic GasketCometic 6 x 11.75 x 15 x 14.6 Viton Metal Jacket Valve Stem Seal
Regular price $1.99Regular price -
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Vendor:Cometic GasketCometic .271inX.502inX.606inX.512inX.361in Valve Stem Seal
Regular price $1.99Regular price$2.16-$0.17 Sale price $1.99 -
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Vendor:Cometic GasketCometic 11/32in x 0.530in x 0.485in x 0.710in Nitrile Valve Stem Seal-Positive Ring & Band-16 Pack
Regular price $8.99Regular price$9.35-$0.36 Sale price $8.99 -
-$1.78
Vendor:GSC Power DivisionGSC P-D Toyota GR Corolla/GR Yaris G16E-GTS Viton 5.5mm Valve Stem Seal Set - Set of 12
Regular price $14.99Regular price$16.77-$1.78 Sale price $14.99 -
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Vendor:JE PistonsJE Pistons Nissan SR20DET 10:1 Piston Kit - Single
Regular price $299.99Regular price -
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Vendor:JE PistonsJE Pistons MITSU 4G63 94STR KIT - Single
Regular price $299.99Regular price -
-$24.67Vendor:GSC Power Division
GSC P-D Dodge Viper 2.618in Length 0.5335in OD 0.313in ID Exhaust Valve Guide Set - Set of 10
Regular price $144.99Regular price$169.66-$24.67 Sale price $144.99 -
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Vendor:ARPARP Ford 351-400M Small Block 9/16 Hex Rod Bolt Kit
Regular price $88.99Regular price -
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Vendor:JE PistonsJE Pistons Audi TT RS 2.5 TFSI 5-Cyl Ultra Series 82.5mm Bore Piston Kit (Single)
Regular price $349.99Regular price -
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Vendor:JE PistonsJE Piston Toyota 2JZGTE 8.5:1 Single Piston
Regular price $299.99Regular price -
-$209.01Vendor:GSC Power Division
GSC P-D BMW B58 Gen 1.5 S3 Camshafts 296/300 Billet w/Intake Trigger (Req Ported Head/Upgrade Turbo)
Regular price $1,190.99Regular price$1,400.00-$209.01 Sale price $1,190.99 -
-$209.01
Vendor:GSC Power DivisionGSC P-D BMW B58 Gen 1.5 S2 Camshafts 278/274 Billet w/Intake Trigger (Use w/Upgraded Turbo)
Regular price $1,190.99Regular price$1,400.00-$209.01 Sale price $1,190.99 -
-$209.01Vendor:GSC Power Division
GSC P-D BMW B58 Gen 1.5 S1 Camshafts 268/270 Billet w/Intake Trigger (Use w/Upgraded Turbo)
Regular price $1,190.99Regular price$1,400.00-$209.01 Sale price $1,190.99 -
Sold outVendor:GSC Power Division
GSC P-D Audi R8 V10 / Lamborghini Huracan V10 5.2L S2 Camshaft Set (For Turbo Applications 1500+ HP)
Regular price $2,465.99Regular price$2,900.00-$434.01 Sale price $2,465.99 -
-$236.01
Vendor:GSC Power DivisionGSC P-D Nissan VR38DETT S6 Camshafts 294/302 Billet (For Top End/Drag Race Methanol Fuel Only)
Regular price $1,338.99Regular price$1,575.00-$236.01 Sale price $1,338.99 -
-$111.31
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Evo 4-9 R4 Camshafts 295/310 Billet (Drag Race Engine Only)
Regular price $635.99Regular price$747.30-$111.31 Sale price $635.99 -
-$111.31
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Evo 1-3 / 90-99 DSM R4 Camshafts 295/310 Billet (Drag Race Engine Only)
Regular price $635.99Regular price$747.30-$111.31 Sale price $635.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Toyota G16E +.003in Oversize OD Manganese Bronze Exhaust Valve Guide Stopper Style- Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Toyota G16E +.001in Oversize OD Manganese Bronze Exhaust Valve Guide Stopper Style - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Toyota G16E STD Manganese Bronze Exhaust Valve Guide Stopper Style - Set of 6
Regular price $37.99Regular price$43.82-$5.83 Sale price $37.99 -
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Vendor:GSC Power DivisionGSC P-D Toyota G16E STD Manganese Bronze Exhaust Valve Guide Stopper Style - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Toyota G16E +.003in Oversize OD Manganese Bronze 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 P-D Toyota G16E +.001in Oversize OD Manganese Bronze Intake Valve Guide Stopper Style - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$5.83
Vendor:GSC Power DivisionGSC P-D Toyota G16E Manganese Bronze Intake Valve Guide Stopper Style - Set of 6
Regular price $37.99Regular price$43.82-$5.83 Sale price $37.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Toyota G16E Manganese Bronze 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 P-D Toyota 2JZ +.003in Oversize OD Manganese Bronze Exhaust Valve Guide Stopper Style - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
-$0.60
Vendor:GSC Power DivisionGSC P-D Toyota 2JZ +.001in Oversize OD Manganese Bronze Exhaust Valve Guide Stopper Style - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
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Vendor:GSC Power DivisionGSC P-D Toyota 2JZ STD Manganese Bronze Exhaust Valve Guide Stopper Style - 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 STD Manganese Bronze Exhaust Valve Guide Stopper Style - Single
Regular price $6.99Regular price$7.59-$0.60 Sale price $6.99 -
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Vendor:King Engine BearingsKing Engine Bearings Ford 281CI/330CI Connecting Rod Bearing Set
Regular price $117.99Regular price
