2003 Summit Racing Engines & Components

Valve Covers, Tall Height, Cast Aluminum, Black Crinkle, Plain, Chevy LS, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0L, Pair

Part Number: SUM-440362

4.22 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Rocker Arm Trunnion Upgrade Kit, Trunnion Upgrade, Chevy, LS, Set of 16

Part Number: SME-143002

4.68 out of 5 stars ( 60 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Harmonic Balancer, Crank Pulley, 25 Percent Underdrive, SFI, Internal Balance, Short Spacing, 5.7, 6.0, 6.2L, Each

Part Number: SUM-C2503

4.88 out of 5 stars ( 17 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Valve Cover Set, LS Race, Lightweight Die Cast Aluminum, Plain, Black Powdercoat, Pair

Part Number: SUM-440820

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Cam and Lifter kit, Pro SBC Stage 4 Hyd. Roller Cam, 224/232 Dur. 112 LSA + 2 Adv, .550/.540 1.5 Ratio, 2000-6500 RPM Range, 87-02 Gen 1 Roller Block

Part Number: SUM-K8803

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Stage 3 Pro LS Turbo Cam. 232/234 115.5 + 5.5, .600/.575 Lift, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, Vortec Truck LS1 LS2 LS6 LS3 LS7 LS9 LQ4 LQ9 LM7, Each

Part Number: SUM-8716R1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Pro LS Piston and Rod Kit, 325 Cid., 3.780 bore, Standard 3.622 stroke, 6.098 rod, 7cc dish, 9.7:1 @ 61cc, 9.3:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR367807

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Pro LS 4340 Piston and Rod Kit, 370 Cid., 4.030 bore, 3.622 stroke, 6.125 rod, 12cc Dish, 9.7:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L03012

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Cam and Lifter kit, Pro SBC Retrofit Stage 3 Hyd. Roller LS Firing Order, 224/232 Dur., 110 LSA + 2 Adv, .550/.540 1.5 Ratio, 2000-6300 RPM Range

Part Number: SUM-K1223

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Replica Block, Steel, Natural, Includes Hardware, Chevy, LS, Each

Part Number: SUM-774001

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Timing Chain and Gear Set, Adjustable, Billet Steel, Single Roller, 3-Bolt, 1X, Standard Spacing, LS, Kit

Part Number: SUM-G6645-1X

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Housing, Rear Main Seal, Aluminum, Chevy, LS, Each

Part Number: SUM-G2621

2.5 out of 5 stars ( 18 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Pro LS 2618 Forged Piston, 4.040 bore, 1.110 C.H., 8cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.0 LY6 LQ4 LQ9, Set of 8

Part Number: SUM-1109274040-8

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Pro LS 4340 Rotating Assembly, 410 Cid., 4.040 bore, 4.000 stroke, 24X, 6.125 rod, 8cc dish, 11.2:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R24400408

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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

Part Number: SUM-8709-1DS

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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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

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Cylinder Deactivation Delete Combo, 6.0/6.2L AFM DOD Delete, Head Bolts, Lifters/Trays, Non PCV Valley Cover, Head Gaskets, Chevy LS, Kit

Part Number: CMB-09-0032

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Pro LS 2618 Forged Pistons. 3.810 bore, 1.299 C.H., 2cc dome, Std. Stroke, .6.125 Rod, NA/Boost/Nitrous, Coated, 4.8L 5.3L LS Vortec Truck, Set of 8

Part Number: SUM-2999273810-2

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Pro LS 2618 Forged Pistons. 3.810 bore, 1.326 C.H., 7cc dish, Std. Stroke, .945 pin Press or Float, NA/Boost/Nitrous, Coated, 4.8L 5.3L Vortec Truck

Part Number: SUM-326945810-7P

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Stage 3 Pro LS Twin-Turbo Cam. 234/238 Dur., 115+5, .625/.605 Lift, 3-bolt, 5.3, 5.7, 6.0, 6.2, 7.0, Vortec Truck, LS1 LS2 LS6 LS3 LS7 LQ4 LQ9, Each

Part Number: SUM-8722R1

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Valve Cover Set, LS Race, Lightweight Die Cast Aluminum, With Coil Mounts, Black Powdercoat, Pair

Part Number: SUM-440821

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Stage 4 Pro LS Cam, Extra Valve Clearance Version, 234/248 113.5 +3.5 .625/.605 Lift, Great Power, 3-bolt, 4.8-7.0L , Vortec LS1 LS2 LS6 LS7 LQ9 LS9

Part Number: SUM-8711R1

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Pro LS 2618 Forged Piston, 4.005 bore, 1.299 C.H., 2cc Flat, Std. Stroke, 6.125 .927 Rod, NA/Boost/Nitrous, Cathedral/Rect. 6.0L LY6 LQ4 LQ9, Set of 8

Part Number: SUM-2999274005-2

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Engine Oil Dipstick, LS Cast Retro Pan, Billet Aluminum Handle, Black, Steel Tube with Braided Dipstick, Chevy GM, LS/LSX, Gen III/IV., Each

Part Number: SUM-122240

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

Pro LS 2618 Forged Pistons. 3.810 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-2999273810-7

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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