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Technical Articles for Part Number SUM-8718R1
Summit Racing™ Pro LS Vortec Truck Swap Camshafts
Stage 1 SUM-8718 Pro LS Drop-in Truck Swap Cam, Maximum Torque for Towing and Efficiency, 205/217 112+2, .500 /.500 Lift, 3-bolt, 4.8, 5.3, 6.0, 6.2
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Overview
Brand:
Manufacturer's Part Number:
SUM-8718R1
Part Type:
Product Line:
Summit Racing Part Number:
SUM-8718R1
UPC:
190861251557
Cam Style:
Hydraulic roller, OE roller
Camshaft Use:
Racing
Camshaft Manufacturers Description:
The Summit Stage 1 Drop-in truck Towing/RV cam produces outstanding torque right off idle and maintains efficiency. It makes much better torque and power across the entire RPM range. Idle speed can be tuned for smooth idle or a slight lope. No springs are required.
Basic Operating RPM Range:
750-6,000
Intake Duration at 050 inch Lift:
205
Exhaust Duration at 050 inch Lift:
217
Duration at 050 inch Lift:
205 int./217 exh.
Advertised Intake Duration:
258
Advertised Exhaust Duration:
270
Advertised Duration:
258 int./271 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.500 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.500 in.
Valve Lift with Factory Rocker Arm Ratio:
0.500 int./0.500 exh.
Lobe Separation (degrees):
112
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
Yes
Valve Springs Required:
No
Quantity:
Sold individually.
Notes:
Not for AFM or VVT equipped engines. Summit Pro LS cams are designed for engines swapped into pre-pollution controlled vehicles. They are not for use in registered emissions-controlled vehicles operated on public highways and roads. 3-bolt camshaft, computer tuning required.
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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