HEAD RELATED

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BRANDENGINEMODELIN/EXVALVE PART NO.VALVE SET PART NO.Head DiamStem DiamLength
NISSAN VR38DETT GT-R R35 IN TA303D-NS01A TA303A-NS01A 38.15mm (+1.0) 5.96mm 95.00mm
EX TA303E-NS01A 33.15mm (+1.0) 5.95mm 92.00mm
VQ35DE 350Z/G35 IN TA303D-NS04A TA303A-NS04A 38.15mm (+1.0) 5.96mm 96.60mm
EX TA303E-NS04A 32.35mm (+1.0) 5.97mm 94.00mm
VG30DETT 300ZX Z32 IN TA303D-NS10A TA303A-NS10A 34.50mm (+0.5) 5.97mm 103.15mm
EX TA303E-NS10A 30.00mm (+0.5) 5.97mm 103.70mm
RB26DETT GT-R R32/R33/R34 IN TA303D-NS05A TA303A-NS05A 35.65mm (+1.0) 5.97mm 102.30mm
EX TA303E-NS05A 31.15mm (+1.0) 6.94mm 101.20mm
KA24DE 240SX IN TA303D-NS16A TA303A-NS16A 37.10mm (+0.5) 6.97mm 101.32mm
EX TA303E-NS16A 32.00mm (+0.7) 6.94mm 99.00mm
SR20DET R(P)S13/S14/S15 IN TA303D-NS08A TA303A-NS08A 35.15mm (+1.0) 5.97mm 101.40mm
EX TA303E-NS08A 31.15mm (+1.0) 6.94mm 102.40mm
TOYOTA 2JZ SUPRA JZA80 IN TA303D-TY03A TA303A-TY03A 34.50mm (+1.0) 5.98mm 98.55mm
EX TA303E-TY03A 30.00mm (+1.0) 5.97mm 99.10mm
TOYOTA/SCION FA20 FR-S 2013 IN TA303D-SB03A TA303A-SB03A 35.00mm (STD) 5.46mm 103.30mm
EX TA303E-SB03A 29.00mm (STD) 5.45mm 95.15mm
FR-S 2014-2016 86 2017+ IN TA303D-SB03B TA303A-SB03B 35.00mm (STD) 5.46mm 105.00mm
EX TA303E-SB03B 29.00mm (STD) 5.45mm 97.70mm
SUBARU EJ20/EJ25 WRX 2004-2014 IN TA303D-SB01A TA303A-SB01A 37.00mm (+1.0) 5.96mm 104.35mm
EX TA303E-SB01A 33.00mm (+1.0) 5.96mm 104.70mm
FA20 BRZ 2013 IN TA303D-SB03A TA303A-SB03A 35.00mm (STD) 5.46mm 103.30mm
EX TA303E-SB03A 29.00mm (STD) 5.45mm 95.15mm
BRZ 2014+ IN TA303D-SB03B TA303A-SB03B 35.00mm (STD) 5.46mm 105.00mm
EX TA303E-SB03B 29.00mm (STD) 5.45mm 97.70mm
FA20DIT WRX 2015+ IN TA303D-SB03B TA303A-SB04A 35.00mm (+1.0) 5.46mm 105.00mm
EX TA303E-SB04A 30.00mm (+1.0) 5.45mm 97.70mm
MITSUBISHI 4G63 EVO1-9 IN TA303D-MT01A TA303A-MT01A 35.00mm (+1.0) 6.57mm 109.60mm
EX TA303E-MT01A 31.50mm (+1.0) 6.54mm 109.60mm
4B11 EVO10 IN TA303D-MT02A TA303A-MT02A 36.00mm (+1.0) 5.47mm 113.25mm
EX TA303E-MT02A 30.00mm (+1.0) 5.46mm 105.90mm
HYUNDAI G4KF GENESIS COUPE 2010-2012 IN TA303D-MT02A TA303A-MT02A 36.00mm (+1.0) 5.47mm 113.25mm
EX TA303E-MT02A 30.00mm (+1.0) 5.46mm 105.90mm
HONDA K20/K24 CIVIC EP/FD/FN IN TA303D-HN01A TA303A-HN01A 36.00mm (+1.0) 5.48mm 108.85mm
EX TA303E-HN01A 30.50mm (+1.0) 5.45mm 108.65mm
B16A/B17A/B18C CIVIC EK/INTEGRA DC IN TA303D-HN03A TA303A-HN03A 34.00mm (+1.0) 5.48mm 102.50mm
EX TA303E-HN03A 28.50mm (+0.5) 5.45mm 102.50mm

HIGH-FLOW, ULTRA DURABLE,
HEAT RESISTANT RACE SPEC VALVES
Designed to withstand high power applications

OVERSIZED VALVES

The oversized head diameter is designed specifically for each application, significantly improving the flow rate. (Excl. FA20)

WAISTED STEM

The waisted stem allows a greater volume of air/gases to enter and exit the combustion chamber as the valve extends. (not available on some models)

ENGINE SPECIFIC DESIGN

ENGINE-SPECIFIC-DESIGN01.jpg

ENGINE-SPECIFIC-DESIGN02.jpg

Each valve is designed and precision machined specifically for the intended engine/application.The head, face, stem and lock groove designs have also been optimized to enhance sealing performance, efficiency and durability.

HEAT RESISTANCE & DURABILITY




 INTAKE 

SUH35 HEAT RESISTANT STEEL
with SPECIALLY FORMULATED COATING.


The intake valves are made using SUH35 HEAT RESISTANT STEEL which is more commonly used to make exhaust valves. These are then coated with a special formula that further improves the valves' resistance to heat, wear and corrosion.




 EXHAUST 

INCONEL 751 ALLOY


In order to withstand temperatures of up to around 1000℃, the exhaust valves are made using a nickel based heat resistant alloy, INCONEL 751.

IN&EX COMPLETE SET

Although sold as an IN&EX complete set, each valve can also be purchased individually.

VALVE

Filtered by:

  • MODEL: HONDA DC2 INTEGRA
  • MODEL: SUBARU WRX STI
  • TYPE: WHOLE UNIT
RACING VALVE SET B16A/B17A/B18C

  • Parts No.TA303A-HN03A
  • Weight3 lbs
  • MSRP$480.00
  • Dimension15 x 8 x 3 inch
  • Sub CategoryVALVE
  • Qty in Stock0
  • EngineHONDA B16A, HONDA B17A, HONDA B18C
  • NoteETA:2025/12/15
  • ModelHONDA EK4 CIVIC, HONDA DC2 INTEGRA
  • Note2
  • Available Repair PartsYes
  • Parts No.TA303A-HN03A
  • MSRP$480.00
  • Sub CategoryVALVE
  • EngineHONDA B16A, HONDA B17A, HONDA B18C
  • ModelHONDA EK4 CIVIC, HONDA DC2 INTEGRA
  • Weight3 lbs
  • Dimension15 x 8 x 3 inch
  • Qty in Stock0
  • NoteETA:2025/12/15
  • Note2
  • Available Repair PartsYes
RACING VALVE SET EJ20/EJ25 TURBO

  • Parts No.TA303A-SB01A
  • Weight3 lbs
  • MSRP$480.00
  • Dimension15 x 8 x 3 inch
  • Sub CategoryVALVE
  • Qty in Stock10
  • EngineSUBARU EJ25 TURBO, SUBARU EJ20 TURBO
  • NoteIn Stock Now!
  • ModelSUBARU WRX, SUBARU WRX STI
  • Note2
  • Available Repair PartsYes
  • Parts No.TA303A-SB01A
  • MSRP$480.00
  • Sub CategoryVALVE
  • EngineSUBARU EJ25 TURBO, SUBARU EJ20 TURBO
  • ModelSUBARU WRX, SUBARU WRX STI
  • Weight3 lbs
  • Dimension15 x 8 x 3 inch
  • Qty in Stock10
  • NoteIn Stock Now!
  • Note2
  • Available Repair PartsYes
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