Products

GSC P-D BMW E92 335i Inline 6 Manganese Bronze Exhaust Valve Guide - Set of 12

$77.79

GSC P-D BMW E92 335i Inline 6 Manganese Bronze Intake Valve Guide - Set of 12

$77.79

GSC P-D BMW M3 E46 S54 Manganese Bronze Intake/Exhaust Valve Guide - Set of 12

$77.79

GSC P-D BMW S58 Beehive Valve Spring & Ti Retainer Kit (Max Boost 70PSI)

$595.00 $700.00

GSC P-D BMW/Toyota B58 / BMW S58 Manganese Bronze Exhaust Valve Guide w/Stopper - Set of 12

$77.79

GSC P-D BMW/Toyota B58 272/272 S1 Billet Camshafts

$1,190.00 $1,400.00

GSC P-D BMW/Toyota B58 284/288 S2 Billet Camshafts

$1,190.00 $1,400.00

GSC P-D BMW/Toyota B58 S3 Cams 292/300 Billet w/Intake Trigger (Use w/Upgraded Turbo/Ported Head)

$1,190.00 $1,400.00

GSC P-D D16/B18-21/ H23 Viton 6.6mm Seal Valve Stem Seal Kit

$27.59

GSC P-D Dodge Neon SRT-4 & 420A Manganese Bronze Exhaust Valve Guide - SET OF 8

$56.44

GSC P-D Dodge Neon SRT-4 & 420A Manganese Bronze Intake Valve Guide - SET OF 8

$56.44

GSC P-D EcoBoost 3.5 6Cyl Manganese Bronze Intake OR Exhaust Valve Guide - SET OF 12

$77.79

GSC P-D EJ series EJ205/EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve-32mm Head(STD) -SET 8

$268.23 $308.09

GSC P-D EJ series EJ205/EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve-33mm Head(+1mm)-SET 8

$271.23 $311.72

GSC P-D EJ Series EJ205/EJ207/EJ258 Manganese Bronze Exhaust Valve Guide Stopper Style - Set 8

$56.44

GSC P-D EJ Series EJ205/EJ207/EJ260 Manganese Bronze Intake Valve Guide Stopper Style - Set 8

$56.44

GSC P-D Ford 5.0L Coyote Gen 1/Gen 2 (STD) Intake/Exhaust Valve Guide w/Stopper - Set of 16

$99.13 $103.37

GSC P-D Ford 5.2L Voodoo/Predator Conical Spring & Ti Retainer Kit

$782.00 $920.00

GSC P-D Ford Coyote 5.0L Manganese Bronze Intake/Exhaust Valve Guide Set - Set of 16

$99.13 $103.37

GSC P-D Ford Coyote Gen 3 Intake/Exhaust Valve Guide Set - Set of 16 (Use OEM or GSC 1102)

$99.13 $103.37

GSC P-D Ford F-150 Coyote Gen 3 (w/OEM Unported Head) 290/300 S1 Billet Camshafts

$1,776.00 $2,089.41

GSC P-D Ford F-150 Coyote Gen 3 (w/OEM Unported Head) 292/316 S2 Billet Cams (Req Spring Upgrade)

$1,776.00 $2,089.41

GSC P-D Ford F-150 Coyote Gen 3 (w/Ported Head) 292/304 R2 Billet Camshaft (Req Spring Upgrade)

$1,776.00 $2,089.41

GSC P-D Ford F-150 Coyote Gen 3 (w/Ported Head) 300/316 Billet R3 Camshafts (Req Spring Upgrade)

$1,776.00 $2,089.41

GSC P-D Ford Mustang 5.0L Coyote Gen 1/2 31.75mm Head (STD) Chrome Polished Exhaust Valve - Set of 8

$189.35 $212.58

GSC P-D Ford Mustang 5.0L Coyote Gen 1/2 31.75mm Head (STD) Super Alloy Exhaust Valve - Set of 8

$294.92 $340.40

GSC P-D Ford Mustang 5.0L Coyote Gen 1/2 37.27mm Head (STD) Chrome Polished Intake Valve - Set of 8

$198.94 $224.20

GSC P-D Ford Mustang 5.0L Coyote Gen 1/2 Conical Valve Spring and Titanium Retainer Kit

$765.00 $900.00

GSC P-D Ford Mustang 5.0L Coyote Gen 3 32mm Head (STD) Chrome Polished Exhaust Valve - Set of 8

$206.85 $233.77

GSC P-D Ford Mustang 5.0L Coyote Gen 3 37.6mm Head (STD) Chrome Polished Intake Valve - Set of 8

$199.78 $225.22

GSC P-D Ford Mustang 5.0L Coyote Gen 3 Conical Valve Spring and Ti Retainer Kit

$782.00 $920.00

GSC P-D Ford Mustang 5.0L Coyote Gen 3 High Pressure Conical Valve Spring & Ti Retainer Kit

$815.15 $959.00

GSC P-D Ford Mustang 5.0L Coyote Valve Stem Seal w/Integrated Spring Seat - Set of 32

$71.57

GSC P-D Ford Mustang 5.0L Gen 3 Coyote Valve Stem Seal w/Integrated Spring Seat - Set of 32

$71.57

GSC P-D Ford Mustang GT/GT500 5.4L DOHC Manganese Bronze Intake Valve Guide - Set of 16

$99.13 $103.37

GSC P-D Ford Mustang GT/GT500 5.4L Manganese Bronze Exhaust Valve Guide - Set 16

$99.13 $103.37

GSC P-D Ford Raptor 3.5L Ecoboost Intake/Exhaust Valve Guide Set w/ Stopper - Set of 12

$77.79

GSC P-D Ford Voodoo/Predator 32.5mm Head STD 109.8mm Long Chrm Super Alloy Exhaust Valve - Set of 8

$312.92 $362.19

GSC P-D GM LS7 Intake/Exhaust Valve Guide - Set of 8

$80.57 $80.90

GSC P-D Honda B Series Vtec B16A/B17A/B18C Chrome Polished Exhaust Valve - 28mm Head (STD) - SET 8

$167.60 $186.26

GSC P-D Honda B Series Vtec B16A/B17A/B18C Chrome Polished Exhaust Valve - 29mm Head (+1mm) - SET 8

$137.67 $150.03

GSC P-D Honda B Series Vtec B16A/B17A/B18C Chrome Polished Intake Valve - 33mm Head (STD) - SET 8

$162.64 $180.25

GSC P-D Honda B Series Vtec B16A/B17A/B18C Chrome Polished Intake Valve - 34mm Head (+1mm) - SET 8

$138.78 $151.37

GSC P-D Honda B-Series B16A/B17A/B18C Chrome Alloy Exhaust Valve 28mm Head - 6mm Stem - Set of 8

$255.24 $292.36

GSC P-D Honda B/K/H Series Viton 5.5mm Valve Stem Seal - Set of 16

$27.59

GSC P-D Honda B/K/H Series Viton 5.5mm Valve Stem Seal - Set of 8

$20.68

GSC P-D Honda B/K/H Viton 6mm Exhaust Valve Stem Seal Set

$20.68

GSC P-D Honda B16A/B17A/B18C VTEC Exhuast Valve Guide 6mm Valve Stem - Set of 8

$56.44

GSC P-D Honda D16 1.872in L x .2360in ID x .4360in OD Intake/Exhaust Valve Guide - SET OF 8

$56.44

GSC P-D Honda K Series Vtec K20/K24 Chrome Polished Exhaust Valve - 30mm Head (STD) - Set of 8

$189.29 $212.51

GSC P-D Honda K Series Vtec K20/K24 Chrome Polished Intake Valve - 35mm Head (STD) - Set of 8

$186.29 $208.88

GSC P-D Honda K-Series VTEC K20/24 Manganese Bronze Exhaust Valve Guide Stopper Style - SET OF 8

$56.44

GSC P-D Honda K-Series VTEC K20/24 Manganese Bronze Intake Valve Guide Stopper Style - SET OF 8

$56.44

GSC P-D Honda S2000 Manganese Bronze Exhaust Valve Guide - Set 8

$56.44

GSC P-D Mazda Miata 1.6L/1.8L Intake/Exhaust Valve Guide Set - Set of 8

$56.44

GSC P-D Mitsubishi 4B11T Exhaust Valve Guide - Set of 8

$56.44

GSC P-D Mitsubishi 4B11T High Pressure Single Conical Valve Spring and Ti Retainer Kit

$494.32 $581.55

GSC P-D Mitsubishi 4B11T Intake Valve Guide Stopper Style - Set 8

$56.44

GSC P-D Mitsubishi 4G63 Zero-Tick Lifter QTY 1

$25.67

GSC P-D Mitsubishi 4G63T Evo 1-9 / 90-98 DSM Valve Keeper (Set Set of 32)

$45.55

GSC P-D Mitsubishi 4G63T Extreme Pressure Conical Valve Spring and Ti Retainer Kit

$518.53 $610.03

GSC P-D Mitsubishi 4G63T High Pressure Conical Valve Spring and Ti Retainer Kit

$518.53 $610.03

GSC P-D Mitsubishi 4G63T Manganese Bronze Exhaust Valve Guide Stopper Style +.001in OD - Single

$19.30

GSC P-D Mitsubishi Evo 1-3 4G63T R2 Stroker Cams 274/274 Billet (Beehive Spring/Retainer Kit Req)

$635.21 $747.30

GSC P-D Mitsubishi Evolution 4-8 4G63T Stroker R3 Camshafts Billet

$635.21 $747.30

GSC P-D Nissan RB26 (STD) Exhaust Valve Guide w/Stopper - Set of 12

$77.79

GSC P-D Nissan RB26 (STD) Intake Valve Guide w/Stopper - Set of 12

$77.79

GSC P-D Nissan RB26DEETT Manganese Bronze Exhaust Valve Guide - Set 12

$77.79

GSC P-D Nissan RB26DETT 30.15mm Head STD 101.74mm Long Exhaust Valve - Set of 12

$465.56 $546.99

GSC P-D Nissan RB26DETT 30.15mm Head STD 103.24mm Long +1.5mm Tip Exhaust Valve - Set of 12

$468.53 $550.58

GSC P-D Nissan RB26DETT 34.65mm Head STD 102.4mm Long Intake Valve - Set of 12

$251.73 $288.11

GSC P-D Nissan RB26DETT 34.65mm Head STD 103.8mm Long +1.5mm Tip Intake Valve - Set of 12

$252.15 $288.62

GSC P-D Nissan RB26DETT High Pressure Shimless Conical Valve Spring & Ti Retainer Kit (Max PSI 60)

$824.80 $970.35

GSC P-D Nissan RB26DETT Manganese Bronze Intake Valve Guide - Set of 12

$77.79

GSC P-D Nissan RB26DETT Shimless Conical Valve Spring & Ti Retainer Kit ( Max Boost PSI 50)

$824.80 $970.35

GSC P-D Nissan RB26DETT Valve Stem Seal - Set of 24

$34.51

GSC P-D Nissan RB26DETT/RB26 Conical Valve Spring Kit

$824.79 $970.35

GSC P-D Nissan RB26DETT/RB26 Cylindrical Valve Spring Kit

$636.48 $748.81

GSC P-D Nissan Skyline R32/R33 RB26DETT S1 Camshafts 268/270 Billet (No Head Mods Req)

$946.05 $1,113.00

GSC P-D Nissan Skyline R32/R33 RB26DETT S2 Camshafts 272/276 Billet (No Head Mods Req)

$946.05 $1,113.00

GSC P-D Nissan SR20DET (STD) Exhaust Valve Guide w/Stopper - Set of 8

$56.44

GSC P-D Nissan SR20DET (STD) Intake Valve Guide w/Stopper - Set of 8

$56.44

GSC P-D Nissan TB48DE Valve Stem Viton 7mm Seal - SET OF 24

$34.27

GSC P-D Nissan VQ35DE Viton 5.5mm Valve Stem Seal Set

$34.27

GSC P-D Nissan VR30DDTT HP Conical Valve Spring Ti Retainer & Seat Kit (10500RPM/55PSI Max)

$794.75 $935.00

GSC P-D Nissan VR30DDTT HP Conical Valve Spring Ti Retainer & Seat Kit (9500RPM/40PSI Max)

$794.75 $935.00

GSC P-D Nissan VR38DETT 21-4N Chrome Polished Intake Valve - 37.15mm Head STD - SET OF 12

$318.18 $368.56

GSC P-D Nissan VR38DETT 33.15mm Head +1mm OS 91.95mm Long 6.6mm Stem Exhaust Valve - Set of 12

$462.92 $543.78

GSC P-D Nissan VR38DETT 6.6mm Stem Manganese Bronze Exhaust Valve Guide Stopper Style - Set of 12

$77.79

GSC P-D Nissan VR38DETT Chrome Polished Super Alloy Exhaust Valve - 32.15mm Head STD - SET OF 12

$404.04 $472.50

GSC P-D Nissan VR38DETT Conical Valve Spring Kit w/ TVS1903 Conical Spring

$843.84 $992.75

GSC P-D Nissan VR38DETT High Pressure Conical Valve Spring Kit w/ Titanium Retainer

$843.84 $992.75

GSC P-D Nissan VR38DETT S1 Camshafts 264/264 Billet

$1,338.75 $1,575.00

GSC P-D Nissan VR38DETT S3 Cams 280/280 Billet

$1,338.75 $1,575.00

GSC P-D Nissan VR38DETT S4 Camshafts 290/290 Billet

$1,338.75 $1,575.00

GSC P-D Nissan VR38DETT S4 Camshafts 294/306 Billet (Use w/Methanol Fuel Only)

$1,338.75 $1,575.00

GSC P-D Nissan/Infiniti VR30DDTT S1 Camshafts 253/260.5 Billet

$1,360.00 $1,600.00

GSC P-D Nissan/Infiniti VR30DDTT S2 Camshafts 270/272 Billet

$1,360.00 $1,600.00

GSC P-D Porsche 991 Turbo Conical Spring Set

$981.75 $1,155.00

GSC P-D Porsche 996/997 Turbo Manganese Bronze STD Style Exhaust Valve Guide - SET OF 12

$77.79

GSC P-D Porsche GT3 CUP 996/997 Manganese Bronze STD Style Intake/Exhaust Valve Guide - SET OF 12

$77.79

GSC P-D S1 Toyota 2JZ-GTE VVTI S1 Intake Cam

$619.44 $728.75

GSC P-D SR20DET Valve Stem Seal Set

$26.64

GSC P-D Subaru EJ Series Conical Valve Spring and Ti Retainer Kit

$517.85 $609.24

GSC P-D Subaru EJ Series Viton 6mm Valve Stem Seal - Set of 500

$273.94 $315.00

GSC P-D Subaru EJ Single Conical Valve Spring Titanium Retainer & Spring Seat Kit

$517.85 $609.24

GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 36mm Head (STD) - Set of 50

$903.55 $1,063.00

GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 37mm Head (+1mm) - Set of 50

$910.35 $1,071.00

GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve - 32mm Head - Set of 50

$1,626.05 $1,913.00

GSC P-D Subaru EJ205/EJ207/EJ257 Manganese Bronze Exhaust Valve Guide Stopper Style - Set of 240

$1,281.73 $1,507.92

GSC P-D Subaru EJ205/EJ207/EJ257 STD Head Chrome Polished Exhaust Valve - Set of 50

$906.10 $1,066.00

GSC P-D Subaru EJ205/EJ207/EJ257/EJ257B/SOHC EJ Valve Keeper Set (Set of 32)

$45.55

GSC P-D Subaru EJ205/EJ207/EJ259 Manganese Bronze Intake Valve Guide Stopper Style - Set of 240

$1,281.73 $1,507.92

GSC P-D Subaru EJ205/EJ207/EJ259 Manganese Bronze Intake Valve Guide Stopper Style - Single

$19.30

GSC P-D Subaru EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve - 33mm Head (+1mm) - Set of 50

$1,644.75 $1,935.00

GSC P-D Subaru EJ257 Beehive Valve Spring & Ti Retainer Kit (Use w/OE Spring Seats)

$402.37 $470.49

GSC P-D Subaru EJ257/EJ207/EJ205 Viton 6mm Valve Stem Seal Set

$27.59

GSC P-D Subaru FA20 Viton 6mm Valve Stem Seal Set

$27.59

GSC P-D Subaru FA20 WRX/BRZ/FRS Dual Cylindrical Valve Spring Kit

$450.66 $528.94

GSC P-D Subaru FA20F WRX 2015+ 23-8N Chrome Polished Exhaust Valve 29mm STD Head - SINGLE

$33.05

Sold Out

Sold Out

Sold Out

Sold Out

Sold Out

Sold Out

Sold Out

Sold Out

Sold Out

Best Sellers

Links

Blog Posts

Customer Service

Follow us