HEAD RELATED

BRAND	ENGINE	MODEL	IN/EX	VALVE PART NO.	VALVE SET PART NO.	Head Diam	Stem Diam	Length
NISSAN	VR38DETT	GT-R R35	IN	TA303D-NS01A	TA303A-NS01A	38.15mm (+1.0)	5.96mm	95.00mm
	VR38DETT	GT-R R35	EX	TA303E-NS01A	TA303A-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
	VQ35DE	350Z/G35	EX	TA303E-NS04A	TA303A-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
	VG30DETT	300ZX Z32	EX	TA303E-NS10A	TA303A-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
	RB26DETT	GT-R R32/R33/R34	EX	TA303E-NS05A	TA303A-NS05A	31.15mm (+1.0)	6.94mm	101.20mm
	KA24DE	240SX	IN	TA303D-NS16A	TA303A-NS16A	37.10mm (+0.5)	6.97mm	101.32mm
	KA24DE	240SX	EX	TA303E-NS16A	TA303A-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
	SR20DET	R(P)S13/S14/S15	EX	TA303E-NS08A	TA303A-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
TOYOTA	2JZ	SUPRA JZA80	EX	TA303E-TY03A	TA303A-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
		FR-S 2013	EX	TA303E-SB03A	TA303A-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
		FR-S 2014-2016 86 2017+	EX	TA303E-SB03B	TA303A-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
	EJ20/EJ25	WRX 2004-2014	EX	TA303E-SB01A	TA303A-SB01A	33.00mm (+1.0)	5.96mm	104.70mm
	FA20	BRZ 2013	IN	TA303D-SB03A	TA303A-SB03A	35.00mm (STD)	5.46mm	103.30mm
		BRZ 2013	EX	TA303E-SB03A	TA303A-SB03A	29.00mm (STD)	5.45mm	95.15mm
		BRZ 2014+	IN	TA303D-SB03B	TA303A-SB03B	35.00mm (STD)	5.46mm	105.00mm
		BRZ 2014+	EX	TA303E-SB03B	TA303A-SB03B	29.00mm (STD)	5.45mm	97.70mm
	FA20DIT	WRX 2015+	IN	TA303D-SB03B	TA303A-SB04A	35.00mm (+1.0)	5.46mm	105.00mm
	FA20DIT	WRX 2015+	EX	TA303E-SB04A	TA303A-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
	4G63	EVO1-9	EX	TA303E-MT01A	TA303A-MT01A	31.50mm (+1.0)	6.54mm	109.60mm
	4B11	EVO10	IN	TA303D-MT02A	TA303A-MT02A	36.00mm (+1.0)	5.47mm	113.25mm
	4B11	EVO10	EX	TA303E-MT02A	TA303A-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
HYUNDAI	G4KF	GENESIS COUPE 2010-2012	EX	TA303E-MT02A	TA303A-MT02A	30.00mm (+1.0)	5.46mm	105.90mm
HONDA	K20/K24	CIVIC EP/FD/FN/FK	IN	TA303D-HN01A	TA303A-HN01A	36.00mm (+1.0)	5.48mm	108.85mm
	K20/K24	CIVIC EP/FD/FN/FK	EX	TA303E-HN01A	TA303A-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
	B16A/B17A/B18C	CIVIC EK/INTEGRA DC	EX	TA303E-HN03A	TA303A-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

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.