Supertech High Performance Valves: Ford

FORD ZETEC 2.0L DOHC
	INTAKE VALVE						Part Number	EXHAUST VALVE					Part Number
	Head Diam		Stem. Diam		Length		Black Nitrided	Head Diam		Stem. Diam		Length	Black Nitrided / Inconel
Focus	32.00mm (std)		6.035mm		97.10mm		FIVN-1035	28.00mm (std)		6.012mm		96.70mm	FEVN-1035
Focus	33.00mm (+1.0)		6.035mm		97.10mm		FIVN-1037	29.00mm (+1.0)		6.012mm		96.70mm	FEVN-1037
FORD / MAZDA Duratec 2.0 - 2.3L
	INTAKE VALVE						Part Number	EXHAUST VALVE					Part Number
	Head Diam		Stem. Diam		Length		Black Nitrided	Head Diam		Stem. Diam		Length	Black Nitrided / Inconel
Focus / Mazda 3	35.00mm (std) Flat		5.48 mm				MAIVN-2301F	30.00mm (std) Flat		5.48mm			MAEVN-2301F / MAEVI-2301D
	36.00mm (+1.0) dish				103.40mm (std)		MAIVN-2304D	31.00mm (+1.0) Flat				104.70 mm (std)	MAEVN-2304F
	36.00mm (+1.0) Flat				or 102.40mm (-1mm)		MAIVN-2304F	31.00mm (+1.0) Dish				or 103.70 mm (-1mm)	MAEVN-2304D
	36.75mm (+1.75) Flat				(add an "S" at end of p/n)		MAIVN-2306F	31.00mm (+1.0) dish				(add an "S" at end of p/n)	MAEVI-2304*
	37.50mm (+2.5) Dish						MAIVN-2308D	32.00mm (+2.0) Flat					MAEVN-2306F
ENGINE COMPONENTS
VALVE SPRINGS	Outer Spring			Inner Spring		Pressure (lbs@mm)		Max Net lift	Coil Bind		Rate	Titanium Retainer
Part Number	O.D. (mm)	I.D. (mm)		O.D. (mm)	I.D. (mm)	Seat	Open (lift)	mm	mm		lbs./mm	Part Number
SPR-TS/DUR-D1	27.50	20.00		20.00	15.20	83 @ 35.00	233 @ 12	14.30	20.70		12.10	RET-TS5.5/T1 +Factory Seat+ SEAT-DUR1
SPR-TS/DUR-D2	27.50	20.00		20.00	15.20	70 @ 36.20	215 @ 12	15.20	20.70		12.10	RET-TS5.5/T1 +Factory Seat+ SEAT-DUR2
SPR-TS/DUR-DS	27.50	20.00		SINGLE		55 @ 35.00	170 @ 12	14.30	20.70		9.60	RET-TS5.5/T1 +Factory Seat+ SEAT-DUR1
VALVE SEALS	INTAKE: VSI-D5.5-E							EXHAUST: VSI-D5.5-E
CAM FOLLOWERS	CF-31/2.5+ ( + shims / to be use with 1mm shorter valves)

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