Summit Racing Camshafts & Valvetrain

Pro BBC Big Block Chevy Hydraulic Roller Cam 5.5, 4/7 Swap, 236/248 Duration, 111 LSA, 5 Adv. .620/.620 lift 1.7 ratio, .655/.655 1.8, 3,700-6,600

Part Number: SUM-1263

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Estimated Ship Date: Monday 10/6/2025

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Pro LS Valve Spring, Drop in, 0.630 Max Lift, Single Beehive, 1.300 in. O.D., 340 lbs./in. Spring Rate, 1.800 in. Installed Height, Each

Part Number: SUM-174005-1

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Estimated Ship Date: Monday 10/6/2025

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 ea.

Part Number: SUM-174010D-1

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Estimated Ship Date: Monday 10/6/2025

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

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LS Dual Springs, Solid Roller, .750 Max Lift @ 250 Lb. seat @ 1.800 Installed, 700 Lb. @ 1.050 Open, .985 C.B., 1.274 Dia., .600 Rate, Like PAC 1238X.

Part Number: SUM-174012DP-1

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LS Dual Springs, Solid Roller, .750 Max Lift @ 250 Lb. seat @ 1.800 Installed, 700 Lb. @ 1.050 Open, .985 C.B., 1.274 Dia., .600 Rate, Like PAC 1238X

Part Number: SUM-174012DP-16

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Hemi or LT Beehive Springs, .625 Lift @ 140 Lb. seat @ 1.900 Install, 438 @ 1.250 Open, 1.215 C.B., 1.290 Dia., 405 Rate, Like PAC 1275X PSI 1515

Part Number: SUM-174014BP-1

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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-1

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7.3 Godzilla Valve Springs, .650 Max Lift @ 160 Lb. seat @ 2.250 Installed, 420 @ 1.600 Open, 1.544 C.B., 1.270 Dia., 400 Rate, Like PAC 1282LX

Part Number: SUM-174020BP-1

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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-1

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Estimated Ship Date: Monday 10/6/2025

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-1

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Estimated Ship Date: Monday 10/6/2025

Rocker Arm Trunnion Upgrade Kit, 0.005 in. Oversize Bronze Bushing, Dodge, Cummins, 5.9L, 24 Valve, Kit

Part Number: SUM-141570-OS

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Estimated Ship Date: Monday 10/6/2025

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Lifter Guide, Hydraulic Roller Style, Plastic, Chevy, LS-2, Non AFM/DOD engines, Each

Part Number: SUM-150133

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Estimated Ship Date: Monday 10/6/2025

Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 280/292, Lift .600/.600, Chevy GM, LS/LSX, Gen III/IV, Each

Part Number: SUM-8708-2-BHV

5.0 out of 5 stars ( 2 )

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Camshaft Kit, Pro LS Turbo, Hydraulic Roller Tappet, Advertised Duration 288/285, Lift .625/.600, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8717-2-DLTI

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Camshaft Kit, Pro LS Turbo, Hydraulic Roller Tappet, Advertised Duration 275/283, Lift .600/.575, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8706-2-DLTI

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 280/292, Lift .600/.600, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8708-2-DLSTL

5.0 out of 5 stars ( 1 )

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 288/296, Lift .625/.605, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8709-2-DLTI

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 288/296, Lift .625/.605, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8710-2-DLTI

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 283/297, Lift .625/.605, Chevy GM, LS/LSX, Gen III/IV, Each

Part Number: SUM-8711-2-DLTI

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 271/287, Lift .600/.575, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8715-2-BHV

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 271/287, Lift .600/.575, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8715-2-DLSTL

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Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 271/287, Lift .600/.575, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8715-2-DLTI

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Camshaft Kit, Pro LS Turbo, Hydraulic Roller Tappet, Advertised Duration 280/288, Lift .600/.575, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8716-2-BHV

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Camshaft Kit, Pro LS Turbo, Hydraulic Roller Tappet, Advertised Duration 280/288, Lift .600/.575, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8716-2-DLSTL

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