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Technical Articles for Part Number SUM-8707-2-BHV
Summit Racing™ Pro LS Camshaft & Spring Kits
Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 275/288, Lift .600/.600, Chevy GM, LS/LSX, Gen III/IV, Kit
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Kit/Combo Contents
ACDelco 12557840 - ACDelco GM Genuine Parts Harmonic Balancer Fastener Bolts
Harmonic Balancer Bolt, Steel, Flanged Hex, Coarse Thread, Natural, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Each
Kit Item Quantity: 1
Permatex 22072 - Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker
Ultra RTV, Black, Maximum Oil Resistance, Each
Kit Item Quantity: 1
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 SUM-8707R1 - Summit Racing™ Pro LS Automotive Camshafts
Stage 2 Pro LS Cam. 226/238 113+3, .600/.600 Lift, 3-bolt, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, Vortec Truck LS1 LS2 LS6 LS3 LS7 LSA LQ4 LQ9 LS9 LS4 LY6
Kit Item Quantity: 1
Summit Racing SUM-G2627 - Summit Racing™ Cam Change Gasket Sets
Engine Gasket Set, LS Cam Change Gasket Kit, LS-1,LS-2,LS-3,LS-6, Chevy, Set
Kit Item Quantity: 1
Trick Flow Specialties TFS-16918-16 - Trick Flow® by PAC Racing Beehive Valve Springs
Valve Springs, PAC Racing, Beehive, 1.055 in./1.290 in. O.D., 313 lb./in. Rate, 1.140 in. Coil Bind, Set of 16
Kit Item Quantity: 1
Overview
Brand:
Manufacturer's Part Number:
SUM-8707-2-BHV
Part Type:
Product Line:
Summit Racing Part Number:
SUM-8707-2-BHV
Cam Style:
Hydraulic roller, OE roller
Basic Operating RPM Range:
3,000-7,000
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
The Summit Stage 2 LS cam is the biggest cam for a daily driver with stock cubic inches. It has a steady lope and tunes well with a minimum of hassle. It uses state-of-the-art lobe designs to pull strongly to 7000 rpm with the high performance dual springs included.
Intake Duration at 050 inch Lift:
226
Exhaust Duration at 050 inch Lift:
238
Duration at 050 inch Lift:
226 int./238 exh.
Advertised Intake Duration:
275
Advertised Exhaust Duration:
288
Advertised Duration:
275 int./288 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.600 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.600 in.
Valve Lift with Factory Rocker Arm Ratio:
0.600 int./0.600 exh.
Lobe Separation (degrees):
113
Camshaft Gear Attachment:
3-bolt
Computer-Controlled Compatible:
Yes
Lifters Included:
No
Valve Springs Included:
Yes
Valve Spring Style:
Beehive
Outside Diameter of Outer Spring (in.):
1.290 in.
Retainers Included:
No
Locks Included:
No
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:
No
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.
Special Attention:
Hazardous items are only returnable in person to a retail store due to strict shipping regulations.
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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