Recommended Parts for SUM-8815
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Valve Spring Upgrade Kit, 1.300 OD Dual Springs, Retainers/Locks, Seals, All GM LS LS1, LS2, LS3, LS7, LSA, LS9, LQ4, LQ9, L92, L76, LY6
Part Number: SME-174003
Estimated Ship Date: Monday 10/26/2026 if shipped by air
Estimated Ship Date: Monday 10/26/2026 if shipped by air
Pro LS Valve Springs, Drop in, 0.630 Max Lift, Single Beehive, 1.3 in. O.D., 340 lbs./in. Spring Rate, 1.8 in. Installed Height, Set of 16
Part Number: SUM-174005
Estimated Ship Date: Monday 10/26/2026 if shipped by air
Estimated Ship Date: Monday 10/26/2026 if shipped by air
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