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

GENERAL MOTORS ECO-TEC 2002-03
27.7MM 20.5MM 70 LBS. @ 34.5MM 190 LBS. @ 10MM Lift 14MM 20MM Dual Spring
X-Treme Alloy		 UR8117S
20.3MM 16MM

NOTE: please use SI retainer TR-9016 and SI IL-1010 with 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.
 
 

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