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GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 33mm Head (+1mm) - Single
Regular price $21.99 USDRegular price$25.38 USD-$3.39 USD Sale price $21.99 USD -
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GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 36mm Head (STD) - Single
Regular price $21.99 USDRegular price$25.15 USD-$3.16 USD Sale price $21.99 USD -
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GSC P-D Subaru EJ20/EJ257 Turbo Chrome Polished Super Alloy Exhaust Valve - 33mm Head (+1mm) -Single
Regular price $38.99 USDRegular price$45.06 USD-$6.07 USD Sale price $38.99 USD -
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GSC P-D Honda B Series VTEC B16A/B17A/B18C Chrome Polished Intake Valve - 33mm Head (STD) - Single
Regular price $22.99 USDRegular price$26.43 USD-$3.44 USD Sale price $22.99 USD -
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GSC P-D Subaru EJ257/EJ207/EJ205 Viton 6mm Valve Stem Seal Set
Regular price $17.99 USDRegular price$20.61 USD-$2.62 USD Sale price $17.99 USD -
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GSC P-D Honda B-Series VTEC B16A/B17A/B18C Chrome Polished Intake Valve - 34mm Head (+1mm) - Single
Regular price $16.99 USDRegular price$19.64 USD-$2.65 USD Sale price $16.99 USD -
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GSC P-D EJ series EJ205/EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve-32mm Head(STD)
Regular price $37.99 USDRegular price$44.54 USD-$6.55 USD Sale price $37.99 USD -
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GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 37mm Head (+1mm) - Single
Regular price $21.99 USDRegular price$25.32 USD-$3.33 USD Sale price $21.99 USD -
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GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 32mm Head (STD) - Single
Regular price $21.99 USDRegular price$25.21 USD-$3.22 USD Sale price $21.99 USD -
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GSC P-D Honda B/K/H Series Viton 5.5mm Valve Stem Seal - Set of 16
Regular price $17.99 USDRegular price$20.88 USD-$2.89 USD Sale price $17.99 USD -
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GSC P-D SR20DET Valve Stem Seal Set
Regular price $13.99 USDRegular price$15.60 USD-$1.61 USD Sale price $13.99 USD -
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GSC P-D Valve Seat Set OEM Replacement EJ205/EJ207/EJ257
Regular price $22.99 USDRegular price$26.40 USD-$3.41 USD Sale price $22.99 USD -
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GSC P-D 21-26 Ford F150 5.0L Coyote Gen 4 38.4mm Intake Valves - Set of 8
Regular price $220.99 USDRegular price$259.62 USD-$38.63 USD Sale price $220.99 USD -
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GSC P-D 21-26 Ford F150 5.0L Coyote Gen 4 Intake/Exhaust Stopper Valve Guides - Set of 16
Regular price $99.99 USDRegular price$116.85 USD-$16.86 USD Sale price $99.99 USD -
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GSC P-D 21-26 Ford F150 5.0L Coyote Gen 4 32.2mm Exhaust Valves - Set of 8
Regular price $232.99 USDRegular price$273.48 USD-$40.49 USD Sale price $232.99 USD -
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GSC P-D Toyota GR Corolla/GR Yaris G16E-GTS Viton 5.5mm Valve Stem Seal - Set of 500
Regular price $445.99 USDRegular price$523.70 USD-$77.71 USD Sale price $445.99 USD -
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GSC P-D 4G63T EVO 1-3/ DSM 90-99 S1 Cam 268/268 Billet (Intake Cam Only)
Regular price $329.99 USDRegular price$387.75 USD-$57.76 USD Sale price $329.99 USD -
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GSC P-D Toyota/BMW B58B30/S58 +.003in Intake Valve Guide - Single
Regular price $6.99 USDRegular price$7.59 USD-$0.60 USD Sale price $6.99 USD -
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GSC P-D Porsche 996/997/991 GT3 Cup S Exhaust Camshaft Set
Regular price $1,020.99 USDRegular price$1,200.00 USD-$179.01 USD Sale price $1,020.99 USD -
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GSC 2021+ BMW M3/M4 S58 S2 Intake Camshaft
Regular price $595.99 USDRegular price$700.00 USD-$104.01 USD Sale price $595.99 USD -
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GSC P-D BMW N63/S63 Size +.001in OD Intake/Exhaust Valve Guide (Single)
Regular price $6.99 USDRegular price$7.59 USD-$0.60 USD Sale price $6.99 USD -
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GSC P-D Evo 4-8 Stroker R2 Cams Billet - Intake Cam Only
Regular price $329.99 USDRegular price$387.75 USD-$57.76 USD Sale price $329.99 USD -
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GSC P-D Nissan VK56 Extreme Conical Valve Spring and Ti Retainer Kit
Regular price $1,267.99 USDRegular price$1,491.25 USD-$223.26 USD Sale price $1,267.99 USD -
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GSC P-D Ford GT350 Flat Plane 300/316 Billet R3 Camshaft Set (Req Spring Upgrade)
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D 15-20 Ford GT350 5.2L 292/304 Flat Plane Billet R2 Camshaft Set
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D 1734 Valve Spring - Set of 8
Regular price $109.99 USDRegular price$128.74 USD-$18.75 USD Sale price $109.99 USD -
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GSC P-D Subaru EJ 1.1in OD 0.635in ID 0.763in Lip 0.060in Thick CroMo Spring Seat Kit - Set of 16
Regular price $46.99 USDRegular price$54.34 USD-$7.35 USD Sale price $46.99 USD -
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GSC P-D 2024+ Ford Mustang Coyote Gen 4 290/292 Billet S1 Camshafts
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D 2024+ Ford Mustang 5.0L Coyote Gen 4 R3 Camshaft Set (Req Ported Heads & Spring Upgrade)
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D 2024+ Ford Mustang 5.0L Gen 4 Coyote R2 Camshaft Set (Req Spring Upgrade)
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D BMW M3 E46 S54 Manganese Bronze Intake/Exhaust Valve Guide - Single
Regular price $6.99 USDRegular price$7.59 USD-$0.60 USD Sale price $6.99 USD -
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GSC P-D Subaru EJ20/EJ25 SOHC Manganese Bronze Intake/Exhaust Valve Guide - Single
Regular price $6.99 USDRegular price$7.59 USD-$0.60 USD Sale price $6.99 USD -
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GSC P-D Nissan TB48DE Manganese Bronze Intake Valve Guide - Single
Regular price $6.99 USDRegular price$7.59 USD-$0.60 USD Sale price $6.99 USD -
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GSC P-D Nissan TB48DE Manganese Bronze Exhaust Valve Guide - Single
Regular price $6.99 USDRegular price$7.59 USD-$0.60 USD Sale price $6.99 USD -
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GSC Ford Mustang 5.0L Coyote Gen 3 Intake or Exhaust Stopper Valve Guide - OD .4394in, ID .2360in
Regular price $6.99 USDRegular price$7.59 USD-$0.60 USD Sale price $6.99 USD -
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GSC P-D Lamborghini Huracan/Audi R8 V10 5.2L Titanium Retainers - Set of 40
Regular price $611.99 USDRegular price$719.60 USD-$107.61 USD Sale price $611.99 USD -
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GSC P-D Lamborghini Huracan/Audi R8 V10 5.2L CroMo Spring Seat - Set of 40
Regular price $339.99 USDRegular price$399.60 USD-$59.61 USD Sale price $339.99 USD -
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GSC P-D Evo 4-8 Stroker R2 Cams Billet - Exhaust Cam Only
Regular price $329.99 USDRegular price$387.75 USD-$57.76 USD Sale price $329.99 USD -
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GSC Subaru EJ207 GC8 JDM STi (No AVCS) S2 Exhaust Cam - Left
Regular price $245.99 USDRegular price$288.75 USD-$42.76 USD Sale price $245.99 USD -
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GSC P-D Round Wire Conical Valve Spring - Set of 8
Regular price $186.99 USDRegular price$218.88 USD-$31.89 USD Sale price $186.99 USD -
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GSC P-D Nissan RB26/2JZ Valve Keeper Set (Set of 48)
Regular price $55.99 USDRegular price$65.00 USD-$9.01 USD Sale price $55.99 USD -
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GSC P-D Mitsubishi 4G63T EVO 8-9 Single Titanium Retainer (5097)
Regular price $12.99 USDRegular price$14.99 USD-$2.00 USD Sale price $12.99 USD -
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GSC P-D Ford F-150 Coyote Gen 3 (w/OEM Unported Head) 292/316 S2 Billet Cams (Req Spring Upgrade)
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D Ford F-150 Coyote Gen 3 (w/OEM Unported Head) 290/300 S1 Billet Camshafts
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D Ford F-150 Coyote Gen 3 (w/Ported Head) 300/316 Billet R3 Camshafts (Req Spring Upgrade)
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D Ford F-150 Coyote Gen 3 (w/Ported Head) 292/304 R2 Billet Camshaft (Req Spring Upgrade)
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D Ford Voodoo Head Cross Plane Firing Order (Ported Head) Billet R3 Cams (Req Spring Upgrade)
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD -
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GSC P-D Ford Voodoo Head Cross Plane Firing Order (Ported Head) Billet R2 Cams (Req Spring Upgrade)
Regular price $1,776.99 USDRegular price$2,089.41 USD-$312.42 USD Sale price $1,776.99 USD
Empower Your JDM Engine With GSC Power Division Components
Discover the GSC Power Division collection at HD Werks, offering genuine, high-performance components engineered for superior engine and powertrain upgrades. These original parts, designed for racing and aftermarket tuning, deliver custom solutions that optimize power output and dynamic control. Crafted with Japanese innovation, GSC products provide authentic quality and robust performance for both track and street use. Experience the perfect blend of original design and aggressive performance. Shop our GSC Power Division range for original components that transform your vehicleís dynamics.