Supertech Dual Valve Spring and Titanium Retainer Kit for 1986-1993 BMW M5 (E28 & E34) S38 24v Engines

Supertech Dual Valve Spring and Titanium Retainer Kit for 1986-1993 BMW M5 (E28 & E34) S38 24v Engines

Set of 24 Dual Valve Springs, 24 Titanium Retainers and Seats

SPRK-H1005D/S38
Outer Spring: OD 29.65mm - ID 21.85mm
Inner Spring: OD 20.50mm - ID 15.50mm
Type: Dual Spring
Press.Seat: 90lbs @ 35.50mm
Max Lift: 14.80mm
Coil Bind: 20.70mm
Rate: 11.50mm
Retainer: RET-BMS14-T1
Spring: SPR-H1005D/S14
Seat: SEAT-H1002-S14

SPRK-H1022D/S38
Outer Spring: OD 29.00mm - ID 21.80mm
Inner Spring: OD 21.00mm - ID 15.50mm
Type: Dual Spring
Press.Seat: 110lbs @ 37.60mm
Max Lift: 15.60mm
Coil Bind: 22.00mm
Rate: 11.20mm
Retainer: RET-H70/T1
Spring: SPR-H1022D/S14
Seat: SEAT-H1002-S14

Our valve springs are computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue. We also utilize computer software that allows us to ensure that the harmonics are under control. All Supertech valve springs are made with premium super clean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms. Using high quality steel alloy also provides the added benefit of better structural memory for all of our springs, giving your performance racing engine a serious competitive advantage.

Supertech retainers are manufactured with high quality military certified Titanium alloy, and are CNC machined for a tight fit. Our high quality retainers are among the best in the industry.