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Technical Articles for Part Number SUM-8727-2-DLSTL
Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8727-2-DLSTL
Part Number: SUM-8727-2-DLSTL
Summit Racing™ Pro LS Camshaft & Spring Kits
SUM-8727 Pro LS Truck Torkinator Level 2 Cam Kit, Dual Springs, St. Ret. Gaskets/Bolt 200/205 Dur. 113 +4, .550/.550 Lift, 3-Bolt, 4.8, 5.3, 6.0 , 6.2
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Kit/Combo Contents
ACDelco GM Genuine Parts Harmonic Balancer Fastener Bolts 12557840
Harmonic Balancer Bolt, Steel, Flanged Hex, Coarse Thread, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each
Kit Item Quantity: 1
Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker 22072
Ultra RTV, Black, Maximum Oil Resistance, Each
Kit Item Quantity: 1
Summit Racing™ Dual Valve Spring Upgrade Kits for GM LS SME-174003
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
Kit Item Quantity: 1
Summit Racing™ Pro LS Vortec Truck Swap Camshafts SUM-8727R1
Pro LS Truck Torkinator. 200/205 Dur., 113+4, .550/.550 Lift, 3-bolt, 4.8 5.3 5.7 6.0 6.2, 7.0 Vortec, L59 LR4 LM7 L33 LS2 L92 L96 LY6 LQ4 LQ9 , Each
Kit Item Quantity: 1
Summit Racing™ Cam Change Gasket Sets SUM-G2627
Engine Gasket Set, LS Cam Change Gasket Kit, LS-1,LS-2,LS-3,LS-6, Chevy, Set
Kit Item Quantity: 1
Overview
Brand:
Manufacturer's Part Number:
SUM-8727-2-DLSTL
Part Type:
Product Line:
Summit Racing Part Number:
SUM-8727-2-DLSTL
Item Number:
7209279
Cam Style:
Hydraulic roller, OE roller
Basic Operating RPM Range:
2,000-6,500
Camshaft Use:
Racing
Camshaft Manufacturers Description:
The Truck Torkinator is designed for 4.8 and 5.3L used for Towing/RV. With higher lift than a stock cam, it produces outstanding torque right off idle and maintains efficiency. Nearly Smooth idle.. LS6 springs are required and tuning recommended.
Intake Duration at 050 inch Lift:
200
Exhaust Duration at 050 inch Lift:
205
Duration at 050 inch Lift:
200 int./205 exh.
Advertised Intake Duration:
255
Advertised Exhaust Duration:
260
Advertised Duration:
255 int./260 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Valve Lift with Factory Rocker Arm Ratio:
0.550 int./0.550 exh.
Lobe Separation (degrees):
113
Camshaft Gear Attachment:
3-bolt
Computer-Controlled Compatible:
Yes
Lifters Included:
No
Valve Springs Included:
Yes
Valve Spring Style:
Standard
Outside Diameter of Outer Spring (in.):
1.290 in.
Retainers Included:
No
Locks Included:
Yes
Valve Stem Seals Included:
Yes
Timing Chain and Gears Included:
No
Assembly Lubricant Included:
No
Pushrods Included:
No
Rocker Arms Included:
No
Gaskets Included:
Yes
Valve Springs Required:
Yes
Quantity:
Sold as a kit.
Notes:
Not for AFM or VVT equipped engines. Summit Pro LS cams are designed for engines swapped into pre-pollution controlled vehicles. Not for use in registered emissions-controlled vehicles operated on public highways and roads. 3-bolt camshaft, computer tuning required.
Summit Racing™ Pro LS Camshaft & Spring Kits
Summit Racing™ Pro LS camshaft and spring kits are designed for GM LS engines. Each cam kit offers a budget-friendly option without sacrificing quality and performance. They're available in Stage 1 or 2 performance configurations. Stage 1 kits include the cam and matching drop in beehive springs with seals or optional upgraded dual spring and retainer kit. Stage 2 kits give you an additional cam change gasket kit and a crank bolt. Order the Summit Racing™ Pro LS camshaft kit recommended for your year/make and engine application.
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