Adjustable Ultra Pro Magnum 1.8 Ratio Steel Roller Rockers Arms, Fits GM LS3 6.2L Rectangle Port Cyl Heads 3/8" Stud

Comp Cams LS3 Stud Mount Roller Rockers, adjustable for 3/8 studs

Comp Cams Ultra Pro Magnum rockers are made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.8 ratio, these rockers fit LS3 with a 3/8" diameter stud.

COMP Cams has expanded its line of rocker arms to build components specific to LS3 applications. New Ultra Pro Magnum LS3 Rockers are made from investment-cast 8650 chromemoly steel, with upgraded trunnions & needle bearings over stock and are stronger, stiffer and more durable than the stock parts. They also feature a 1.8 ratio (compared to the stock rockers’ 1.7) and utilize a roller tip instead of a slider. The higher ratio and increased stiffness make these rockers a great option for increasing lift without changing cams. This increased stiffness, along with the upgraded trunnion package and roller wheel, also makes them a perfect choice when running aftermarket valve springs. The rockers are available in a bolt-down design that uses stock rocker stands and in a stud-mount option for customers looking for an adjustable valve train. The stud-mount version is perfect for individuals running mechanical lifters as well. COMP Cams LS3 Ultra Pro Mangum Rockers Arms.

• Increased (1.8) ratio & stiffness make rockers a great option for increasing lift w/o changing cams
• Investment-cast 8650 chromemoly steel body creates components stronger, stiffer & more durable than stock 
• Increased stiffness, upgraded trunnion & roller wheel make rockers  perfect for aftermarket valve springs
• Two designs available – bolt-down using stock rocker stands & and stud-mount for adjustable valve trains
• Available in individual sets or  kits for  LS1, LS2, LS3, LS6 & LS-based truck applications 
• Limited Lifetime Warranty - So strong that we guarantee the rocker bodies against breakage for life. For use with up to 850 lbs of open spring pressure!

• Rocker Arm Mounting Style:   Stud

  Self-Aligning:  No

  Rocker Arm Ratio:  1.8

  Stud Size:  3/8 in.

  Rocker Arm Style:  Full roller

  Shims Included:  No

  Rocker Arm Material:  Chromoly steel

  Rocker Arm Body Style:  Standard

  Rocker Arm Fasteners Included:  Yes

  Rocker Arm Nut Style:  Polylock

  Rocker Arm Finish:  Black oxide

  Quantity:  Sold as a set of 16.

  Notes: 

• For use on rectangle port heads only.

• STUDS NOT INCLUDED. 

• Will require GUIDE PLATES