SI VALVES

Pro Series Springs are precision wound from only the purest, Hi-Quality chrome-silicone materials for the demands of today's high revving, X-treme boosted sport comact engines. Pro Series Springs go through many stages of Quality Control to ensure a great piece every time. OUR RACERS RELY ON THEM SO CAN YOU.......

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SPORT COMPACT VALVE SPRINGS
O.D.	I.D.	SEAT PRESSURE	OPEN PRESSURE	MAX LIFT	COIL BIND	TYPE	PART NUMBER
MITSUBISHI ECLIPSE GS & GST 2.0L DOHC (4G63-T) 1990-2000
29MM	21.3MM	80 LBS. @ 35MM	190 LBS. @ 10MM Lift	14MM	19MM	Dual Spring X-Treme Alloy	UR8103S
21.1MM	15.5MM
Note: please use SI retainer TR-9006 and SI IL-1001 in place of stock spring base
MITSUBISHI 3000GT VR-4 DOHC V6 (6G72-T) 1991-2000
29MM	21.3MM	80 LBS. @ 35MM	190 LBS. @ 10MM Lift	14MM	19MM	Dual Spring X-Treme Alloy	UR8118S
21.1MM	15.5MM
Note: please use SI retainer TR-9003 and SI IL-1006 in place of stock spring base

also manufactures custom valve spring retainers from chrome-moly and titanium for various high performance applications. Please contact a salesperson for your bulk retainer needs.