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Technical Articles for Part Number SUM-8707-2-DLTI
Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8707-2-DLTI
Part Number: SUM-8707-2-DLTI
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 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™ Pro LS Automotive Camshafts SUM-8707R1
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™ 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
Trick Flow® Double Platinum .660 LS Dual Valve Spring and Retainer Kits TFS-2500287P
Nano-Peened Dual Valve springs, Titanium retainers, 160 lbs. seat pressure. 425 lbs. open at .670 lift. LS1, LS6, LS2, LS3, LQ4, LQ9, L92, Kit
Kit Item Quantity: 1
Overview
Brand:
Manufacturer's Part Number:
SUM-8707-2-DLTI
Part Type:
Product Line:
Summit Racing Part Number:
SUM-8707-2-DLTI
Item Number:
5760171
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 past 7000 rpm with the Nanopeened 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:
High lift
Outside Diameter of Outer Spring (in.):
1.304 in.
Retainers Included:
Yes
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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