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Technical Articles for Part Number SUM-K8727R1
Summit Racing™ Pro LS Camshaft and Lifter kits SUM-K8727R1
Part Number: SUM-K8727R1
Summit Racing™ Pro LS Camshaft and Lifter kits
Cam and Lifter kit, 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 Each
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Kit/Combo Contents
Summit Racing SUM-150132-4 - Summit Racing™ Lifter Guides
Lifter Guide, Hydraulic Roller Style, Plastic, Chevy, LS, Non AFM/DOD Engines, Set of 4
Kit Item Quantity: 1
Summit Racing SUM-8727R1 - Summit Racing™ Pro LS Vortec Truck Swap Camshafts
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 SUM-HT215-16 - Summit Racing™ Performance LS7 Hydraulic Lifters
Lifters, Hydraulic Roller, 0.842 in O.D., Not for AFM-equipped Engines, Chevy, LS7, Delphi, Set of 16
Kit Item Quantity: 1
Overview
Brand:
Manufacturer's Part Number:
SUM-K8727R1
Part Type:
Product Line:
Summit Racing Part Number:
SUM-K8727R1
Cam Style:
Hydraulic roller, OE roller
Basic Operating RPM Range:
600-5,900
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:
Yes
Lifter Style:
Hydraulic roller
Valve Springs Included:
No
Retainers Included:
No
Locks Included:
No
Valve Stem Seals Included:
No
Timing Chain and Gears Included:
No
Assembly Lubricant Included:
Yes
Pushrods Included:
No
Rocker Arms Included:
No
Gaskets Included:
No
Valve Springs Required:
Yes
Quantity:
Sold as a kit.
Notes:
The Summit 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. Camshaft features base circle of 0.757 int./0.757 exh.
Summit Racing™ Pro LS Camshaft and Lifter kits
You won't find a better quality cam for your LS-based engine than our Summit Racing™ Pro LS series of cams. These convenient combo kits enable you to get the cam along with the correct matching lifters. Pro LS cam, lifters, and trays are included in one easy-to-order part number. Whether for street/strip, turbocharged, or racing use, you'll find the kit recommended for your year/make and engine application.
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