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Instruction Sheets for Part Number SUM-8727R1
Technical Articles for Part Number 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
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Overview
Brand:
Manufacturer's Part Number:
SUM-8727R1
Part Type:
Product Line:
Summit Racing Part Number:
SUM-8727R1
UPC:
190861257870
Cam Style:
Hydraulic roller, OE roller
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.
Basic Operating RPM Range:
600-5,900
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
Remanufactured:
No
Computer-Controlled Compatible:
Yes
Valve Springs Required:
Yes
Quantity:
Sold individually.
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 Vortec Truck Swap Camshafts
Summit Racing™ Pro LS Truck Swap cams are affordable and give you maximum punch where the torque converter hits. The cam lobes are designed for excellent valvetrain longevity. Both drop-in or high-lift versions are available. They come in stages allowing you to quickly determine which gives you the idle and efficiency you are looking for. Idle response and the midrange torque from theses camshafts is unmatched. Starting with American bearing steel, they are precision machined on a Landis 3LB CNC grinder with CBN diamond wheels for an extremely good finish quality. The lobes have been designed for stability at high rpm with the spring pressures found in commonly available, quality spring packs.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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