• Magnum Roller Rocker Arms are the ultimate street rocker, helping your engine make more power and last longer. They are made from 8620 chromemoly steel, Magnum Roller Rocker Arms are stronger than die cast aluminum or stamped steel rockers. Their stiffness guarantees maximum lift because the arms will not flex. When your car's rocker ratio is off, you won't get maximum horsepower from the engine. Some rockers are as much as .040'' short on lift while Magnum Roller Rockers are dead-on each time. Magnum Roller Rockers make between 15 and 30 horsepower over other rockers because, combined with their stiff design, the roller tips reduce friction, yielding more effective valve lift. The roller tip design reduces friction by not scrubbing the valve end or pushing the valve stem hard against the valve guide, which extends rocker life.
  • One way to increase power is to increase lift. That's what makes the Competition Cams Magnum steel roller-tip rocker arms so popular. They're one of the highest-lift rockers you can get outside of racing. And, along with the lift, you also get grooved pivot balls and roller tips to prevent valve stem and guide wear. Note: Steel offset rocker arms available on special order. CCA-1431 cannot be used on engines with short valve tips; use CCA-1412 or CCA-1416.
  • One way to increase power is to increase lift. That's what makes the Competition Cams Magnum steel roller-tip rocker arms so popular. They're one of the highest-lift rockers you can get outside of racing. And, along with the lift, you also get grooved pivot balls and roller tips to prevent valve stem and guide wear. Note: Steel offset rocker arms available on special order. CCA-1431 cannot be used on engines with short valve tips; use CCA-1412 or CCA-1416.
  • One way to increase power is to increase lift. That's what makes the Competition Cams Magnum steel roller-tip rocker arms so popular. They're one of the highest-lift rockers you can get outside of racing. And, along with the lift, you also get grooved pivot balls and roller tips to prevent valve stem and guide wear. Note: Steel offset rocker arms available on special order. CCA-1431 cannot be used on engines with short valve tips; use CCA-1412 or CCA-1416. *For 1987-97 engines with centerbolt valve covers.
  • Designed for LS1, LS2 and LS6 engines when a performance cam is used. This spring, when combined with the appropriate titanium retainer, will outperform almost every spring package in the Gen III engine. This spring is designed for a maximum of .600" lift at the valve, so it is the most ideal spring for most street and mild race applications. Specs OD: Top 1.055" Bottom 1.290" ID: Top .650" Bottom .885" Seat Pressure: 130 lbs @ 1.800' Open Pressure: 333 lbs @ 1.150'' Coil Bind: 1.140" Spring Rate: 313 lbs/in
  • Operating Range: 1300-6300 RPM Duration Advertised: 269̴�� Intake / 273̴�� Exhaust Duration @ .050'': 216̴�� Intake / 220̴�� Exhaust Valve Lift w/1.5 Rockers: .525'' Intake / .532'' Exhaust Lobe Separation Angle: 114̴�� Hydraulic Roller-Great mid-range with superior top end power. Needs modifications. Chevy Gen III/LS1/LS2/LS6 4.8L, 5.3L, 5.7L, 6.0L 1997-Present
  • Cam Style: Hydraulic roller tappet Basic Operating RPM Range: 1,600-6,600 Duration at 050 inch Lift: 220 int./224 exh. Advertised Duration: 273 int./277 exh. Valve Lift with Factory Rocker Arm Ratio: 0.530 int./0.534 exh. Lift Lobe Separation (degrees): 112 Intake Valve Lash: 0.000 in. Exhaust Valve Lash: 0.000 in. Grind Number: XR273HR HYDRAULIC ROLLER-Street strip camshaft for high RPM power. Likes higher rocker ratios. Must have computer modifications. Chevy Gen III/LS1/LS2/LS6 4.8L, 5.3L, 5.7L, 6.0L 1997-Present
  • Cam Style: Hydraulic roller tappet Basic Operating RPM Range: 2,000-7,000 Duration at 050 inch Lift: 224 int./230 exh. Advertised Duration: 274 int./279 exh. Valve Lift with Factory Rocker Arm Ratio: 0.581 int./0.588 exh. Lift Lobe Separation (degrees): 114 Intake Valve Lash: 0.000 in. Exhaust Valve Lash: 0.000 in. HYDRAULIC ROLLER-High RPM street / strip with XE-R lobe designs. These are the most aggressive lobes for all out applications. For use with LS6 or aftermarket intake. Requires computer modifications. Chevy Gen III/LS1/LS2/LS6 4.8L, 5.3L, 5.7L, 6.0L 1997-Present
  • Cam Style: Hydraulic roller tappet Basic Operating RPM Range: 2,400-7,200 Duration at 050 inch Lift: 232 int./234 exh. Advertised Duration: 281 int./283 exh. Valve Lift with Factory Rocker Arm Ratio: 0.595 int./0.598 exh. Lift Lobe Separation (degrees): 112 Intake Valve Lash: 0.000 in. Exhaust Valve Lash: 0.000 in. HYDRAULIC ROLLER-Xtreme Energy XE-R design for standard displacement LS6 and LS1 - Race only applications. Chevy Gen III/LS1/LS2/LS6 4.8L, 5.3L, 5.7L, 6.0L 1997-Present
  • The COMP Cams̴� LS1 High Performance Valve Locks are 7-degree units that contain the same precision tolerances and superior strength as that found in COMP̴�'s patented 10-degree Super Locks�̣ۡ�. The LS1 High Performance Locks are manufactured from machined steel and are idea for high performance stock and most racing applications.
  • GM LS1 with 26915 or 26918 Lock Angle: 7̴�� Valve Stem Size: STD Valve Spring Diameter: 1.290