Availability
Hemi Beehive Springs, .680 Max Lift @ 150 Lb. seat @ 1.800 Installed, 429 @1.120 Open. 1.070 C.B., 1.290 Dia., 410 Rate, Like PAC 1276X PSI 1516
Part Number: SUM-174015BP-16
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Piston, 4.005 bore, 1.299 C.H., 12cc Dish, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9,Set of 8
Part Number: SUM-299927400512
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
LS Dual Springs, Hyd. Roller,.650 Max Lift @ 160 Lb. seat @ 1.800 Installed, 425 Lb. @ 1.125 Open, 1.020 C.B., 1.304 Dia., 392 Rate, Like PAC 1905 .
Part Number: SUM-174010D-16
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
LS Dual Springs, Hyd. Or LLSR .750 Max Lift @ 160 Lb. seat @ 1.800 Installed, 510 Lb. @1.100 Open, 1.000 C.B., 1.324 Dia., 500 rate, Like PAC 1209X
Part Number: SUM-174011DP-16
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
SBC 1.550 Dual Springs, Endurance Solid Roller, .700 Max Lift @ 240 Lb. seat @ 1.900 Installed, 625 Lbs. @ 1.200 Open, 1.130 C.B., 550 Rate, PAC 1243
Part Number: SUM-174030D-16
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock
Part Number: SUM-299S274030-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Piston, 3.785 bore, 1.110 C.H., 5cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8
Part Number: SUM-1109273785-5
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Piston, 4.080 bore, 1.299 C.H., 2cc Dome, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.2L LS3 L92 LS9, Set of 8
Part Number: SUM-2999274080-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
BBC 1.625 Dual Springs, Solid Roller .850 Max Lift @ 275 Lb. seat @ 2.000 Installed, 810 Lb. @ 1.150 Open, 1.100 C.B., 629 Rate, 152g Like PAC 1224
Part Number: SUM-174042D-16
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Pistons. 3.785 bore, 1.326 C.H., 2cc dome, Std. Stroke, .Gen.4 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8
Part Number: SUM-326943785-2F
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 4340 Piston and Rod Kit, 364 Cid., 4.000 bore, 3.622 stroke, 6.125 rod, 12cc Dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings
Part Number: SUM-PR36L00012
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Valve Spring, Single, 1.260 in. o.d., 358 lbs./in. Spring Rate, 1.750 in. Installed Height, Each
Part Number: SUM-174000-1
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Piston, 3.820 bore, 1.110 C.H., 5cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8
Part Number: SUM-1109273820-5
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Piston, 3.820 bore, 1.110 C.H., 12cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous,Coated, 4.8L 5.3L LS Vortec Truck, Set of 8
Part Number: SUM-110927382012
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Pistons. 3.785 bore, 1.326 C.H., 7cc dish, Std. Stroke, .Gen.4 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8
Part Number: SUM-326943785-7F
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock
Part Number: SUM-326S454000-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock
Part Number: SUM-326S454040-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Piston, 4.075 bore, 1.110 C.H., 21cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.2 LS3 L92 LS9, Set of 8
Part Number: SUM-110927407521
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock
Part Number: SUM-326S434000-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock
Part Number: SUM-299S274000-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
2011-17 Ford Coyote V8 Valve Springs, .575 Max Lift @ 92 Lb. seat @ 1.575 Installed, 218 Lb. @ 1.050 Open, .941 CB, 1.021 Dia., 240 Rate, PAC 1234X
Part Number: SUM-174021BP-16
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Pistons. 3.820 bore, 1.326 C.H., 2cc dome, Std. Stroke, .Gen.4 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8
Part Number: SUM-326943820-2F
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock
Part Number: SUM-299S27403012
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Pro LS 2618 Forged Pistons. 3.820 bore, 1.299 C.H., 7cc dish, Std. Stroke, .6.125 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8
Part Number: SUM-2999273820-7
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock
Part Number: SUM-299S273780-2
Not Yet Reviewed
Estimated Ship Date: Monday 1/5/2026
Estimated Ship Date: Monday 1/5/2026
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