Availability
2012 Engines & Components
Timing Chain and Gear Set, Adjustable, Billet Steel, Single Roller, 3-Bolt, 4X, Standard Spacing, LS, Kit
Part Number: SUM-G6647-4X
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Engine Valley Cover, Gen. 4 LS2/LS3/LS7 without PCV, Aluminum, Natural, Chevy, Small Block LS, Each
Part Number: NAL-12598832
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Pro LS 4340 Rotating Assembly, 416 Cid., 4.070 bore, 4.000 stroke, 58x, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R58400706
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Rocker Arm Trunnion Upgrade Kit, Needle Bearing Style, Chevy, Small Block LS, Kit
Part Number: BTC-BTRTK001
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Stage 4 Pro LS Cam 238/246 113+3, .625/.605 Lift, Maximum power version, 3-bolt 5.3, 5.7, 6.0, 6.2, 7.0, LS1 LS2 LS6 LS3 LS7 LSA LQ4 LQ9 LS9 LY6 LY5
Part Number: SUM-8709R1
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Cylinder Head, Enforcer, Aluminum, Assembled, 64cc Chamber, 210cc Intake, Cathedral Port, Small Bore, Chevrolet, LS, Each
Part Number: AFR-1506
Not Yet Reviewed
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Rocker Arm, Replacement, Stamped Steel, Chrysler, Dodge, Jeep, Ram, Volkswagen, V6, Each
Part Number: MEL-MR-1332
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Summit Chevy LS 4340 Forged Steel Crankshaft, 3.622 stroke, 58X Reluctor, Gun-drilled and Lightened, Nitride Hardened, Narrowed Rod Bearings Req.
Part Number: SUM-180LS362258
Not Yet Reviewed
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Cylinder Head Stud, Chromoly, Pro Series, 12-Point Nuts, Chevy, 6.6L/400, Diesel, LB-7, LLY, Kit
Part Number: ARP-230-4201
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Cylinder Head, GenX® 255, CNC Comp Port, Assembled, 69cc CNC Chamber, 450 Lb. Springs, Ti Retain, GM LSX, Each
Part Number: TFS-3261T002-C01
Estimated Ship Date: Jun 17, 2026 if ordered today
Estimated Ship Date: Jun 17, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Summit Racing™ Precision Cast Chevy LS Cylinder Head SUM-162LS3255REC
Estimated Ship Date: Monday 3/23/2026
Harmonic Balancer, OEM Replacement, Cadillac, Chevy, Pontiac, LS, Each
Part Number: PBB-PB1117N
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Cylinder Head, GenX® 255, CNC Competition Ported, Assembled, 69cc CNC Chambers, 450 Lb. Springs, GM LSX, Each
Part Number: TFS-32610002-C01
Not Yet Reviewed
Estimated Ship Date: Jun 17, 2026 if ordered today
Estimated Ship Date: Jun 17, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Summit Racing™ Precision Cast Chevy LS Cylinder Head SUM-162LS3255REC
Estimated Ship Date: Monday 3/23/2026
Performance Roller Lifter Set for LS & Gen 5 LT Engines. (8 pair / Set of 16) Link Bar Style Lifters with .842" body .700" wheel)
Part Number: CXM-M-5290
Not Yet Reviewed
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Oil Pump, Standard-Volume, Chevy, 4.8/5.3/5.7/6.0L, Each
Part Number: MEL-M295
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Cam Bearings, Direct Replacement, Bi-metal, Lead-Based Micro Babbitt, Chevy, Small Block LS Fits Second and Third Design, Kit
Part Number: DUR-CH-25
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Oil Pump, Standard-Volume, Standard Pressure, Chevy LS, 4.8/5.3/5.7/6.0/6.2L, Each
Part Number: SUM-121170
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Harmonic Balancer, Serpentine, Internal Balance, Aluminum/Steel, Black, SFI 18.1, Chevy, Pontiac, Each
Part Number: ATI-917303
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Cylinder Deactivation Delete Combo, 09-21 5.7 Gen III Hemi Truck, MDS Delete Kit With VVT, Stock spec cam, Kit
Part Number: CMB-09-0044
Not Yet Reviewed
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Chevy LS Cylinder head, 210cc Cathedral port Intake Runner, 64cc Chamber, 2.02 Intake Valve 1.6 Exhaust Valve, 3.898+ bore sizes, Max .660 Lift, Each
Part Number: SUM-162LS210CATH
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Stage 1 Pro LS Drop-in Truck Swap Cam, 210/218 112 +1, .500/.500 Lift, 3-bolt, 4.8, 5.3, 5.7, 6.0, 6.2, LS1 LS2 LS6 LS7 LS9 LS3 LH6 LQ4 LQ9, Each
Part Number: SUM-8712R1
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Stage 1 Pro LS Truck Swap Cam, High-Lift version, 209/217 112 + 1 .550/.550 Lift, 3-bolt, 4.8-6.2L, LQ4 LQ9 LY6 LS1 LS2 LY6 LS6 LS7 LS9 LH6, Each
Part Number: SUM-8719R1
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Cylinder Head Studs, Extreme Duty, 12-Point Head, Black Oxide, Chevy, 4.8, 5.3, 5.7, 6.0L, 2004-up, Kit
Part Number: SUM-910501
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Pro LS Piston and Rod Kit, 370 Cid., 4.030 bore, 3.622 stroke, 6.125 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings
Part Number: SUM-PR36L0302
Not Yet Reviewed
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Lifter Guide, Hydraulic Roller Style, Plastic, Chevrolet, LS/LT, Non AFM/DOD Engines, Set of 4
Part Number: BTC-BTR95365-4
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Connecting Rod Bolts, Pro Series, 2000 Alloy, Chevy, LS, Kit
Part Number: ARP-234-6301
Estimated Ship Date: Monday 3/23/2026 if shipped by air
Estimated Ship Date: Monday 3/23/2026 if shipped by air
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