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Instruction Sheets for Part Number SUM-5778
Summit Racing Equipment® Pro Mopar Hydraulic Roller Cams SUM-5778
Part Number: SUM-5778
Summit Racing Equipment® Pro Mopar Hydraulic Roller Cams
Pro SB Chrysler Magnum Best Hydraulic Roller Cam 4, 232/248 Duration, 112 LSA + 5 Adv. .587/.587 lift 1.6 ratio, .624/.624 1.7 ratio, 3,500-7,000 rpm
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Overview
Brand:
Manufacturer's Part Number:
SUM-5778
Part Type:
Product Line:
Summit Racing Part Number:
SUM-5778
UPC:
190861363649
Cam Style:
Hydraulic roller, OE roller
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
The H.R. 4 cam likes 3.73+ gears and a higher stall is recommended for full effect. It has a choppy idle and is good for weekend drivers. Headers and extremely free flowing mufflers required.
Basic Operating RPM Range:
3,500-7,000
Intake Duration at 050 inch Lift:
232
Exhaust Duration at 050 inch Lift:
248
Duration at 050 inch Lift:
232 int./248 exh.
Advertised Intake Duration:
284
Advertised Exhaust Duration:
300
Advertised Duration:
284 int./300 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.587 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.587 in.
Valve Lift with Factory Rocker Arm Ratio:
0.587 int./0.587 exh.
Lobe Separation (degrees):
112
Camshaft Gear Attachment:
1-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Rotation:
Clockwise
Quantity:
Sold individually.
Notes:
Magnum rockers can measure big so always confirm coil bind and retainer to seal at max lift. Note slightly higher LSA and cam advance are ground in by design. It's highly recommended to run the car at the track before altering cam advance. Melonized or composite distributor gear recommended.
Summit Racing Equipment® Pro Mopar Hydraulic Roller Cams
Summit Racing Equipment® Pro Mopar cams for LA, Magnum, B and RB engines are made in the USA with advanced cam lobe designs. Durations/LSA/Advance are valve event driven for consistent power and behavior. Lift is set for compatibility with most aftermarket heads or modified factory heads. Lobe intensity is aggressive without being hard on the valvetrain. The valvetrain is specifically designed for stability at high-RPM with modern Beehive and lightweight small-diameter dual-springs. Cam and lobe quality is second to none starting with hardened bearing steel billets and grinding on a Landis 3L. The Pro Mopar hydraulic roller cams allow for faster valve opening and closing compared to flat-tappet alternatives, resulting in better airflow and higher efficiency. Order the Pro Mopar hydraulic roller cam designed for your 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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