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Technical Articles for Part Number SUM-8727-1-BHV
Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8727-1-BHV
Part Number: SUM-8727-1-BHV
Summit Racing™ Pro LS Camshaft & Spring Kits
SUM-8727 Pro LS Truck Torkinator Level 1 Cam Kit, Beehive Springs, 200/205 Dur., 113 +4, .550/.550 Lift, 3-Bolt, 4.8, 5.3, 6.0 , 6.2 Vortec Truck
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Kit/Combo Contents
Summit Racing SME-143008 - Summit Racing™ Valve Seals
Valve Seals, Positive Stop, Viton® Fluoroelastomer, 8mm Stem, 0.500 in. Guide, Set of 16, LS1 hat style with single spring locator
Kit Item Quantity: 1
Summit Racing SME-143009 - Summit Racing™ Valve Locks
Valve Locks, Stamped Steel, 7 Degree, 8mm Stem, 1-Groove, Commonly used with LS Gen III/IV and Gen. V LT stock retainers, Set of 32
Kit Item Quantity: 1
Summit Racing SUM-174004 - Summit Racing™ Valve Springs
Pro LS Valve Springs, Drop in, 0.600 Max Lift, Single Beehive, 1.290 in. O.D., 310 lbs./in. Spring Rate, 1.800 in. Installed Height, Set of 16
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
Overview
Brand:
Manufacturer's Part Number:
SUM-8727-1-BHV
Part Type:
Product Line:
Summit Racing Part Number:
SUM-8727-1-BHV
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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Some parts are not legal for use in California or other states with similar laws / regulations
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