CAMS & VALVETRAIN 180 WARNING: For Proposition 65 information, see p. 183 Some parts are not legal for sale or use in California or other states with similar laws/regulations—see p. 183 for details. Keep your roller rockers in line. A Summit Racing™ stud girdle allows valve opening and closing events to follow your cam profile with accuracy. The double-bar girdle is made from 6061 aluminum, and comes with poly locks and Grade 5 bolts with washers. For most small block Chevys using our Summit aluminum roller rocker arms. Tall valve covers required. NOTE: For use on heads with OE stud spacing. Test fit before torquing girdles in place. SUM-141001 For 3/8" studs .............................................................. kit $123.99 SUM-141002 For 7/16" studs ............................................................ kit $131.99 COMP Cams® Stud Girdles Anchor your rocker studs and eliminate flex with these stud girdles from COMP Cams. The red-anodized girdles are made from durable, lightweight 6061-T6 aluminum. The 1-piece, solid-bar design ties the studs together and properly locates them. A 2-piece, spring-loaded design is also available for small Chevy. Made in the USA. Price/Kit CCA-4009 Chevy, 262-400, for 7/16" studs ...................................... $289.95 CCA-4004* Chevy, 262-400, for 7/16" studs ...................................... $316.95 CCA-4021 Chevy, 396-454, for 7/16" studs ...................................... $417.95 CCA-4014 Ford, 221-351W, for 7/16" studs ...................................... $289.95 *2-piece, spring-loaded. Adjust your rocker arms once. Put an end to readjusting your rocker arms— ARP’s Perma-Loc rocker arm adjusters won’t loosen like others. To eliminate thread movement, ARP heat-treated the adjuster body all the way through. The threads are machined perpendicular to the bottom of the adjuster for an even seat and evenly applied pressure, and the set screw is machined flush on the bottom for maximum contact on the rocker arm stud. You don’t need special tools to use the adjusters either— the 12-point head is designed to hold your wrench in position while you lock the set screw with an Allen wrench. Sold in packs of 16. Made in the USA. ARP-300-8241 For stamped-steel rockers, 3/8"-24 thread ...................pack $79.99 ARP-300-8242 For stamped-steel rockers, 7/16"-20 thread .................pack $90.99 ARP-300-8243 For aluminum rockers, 3/8"-24 thread .........................pack $93.99 ARP-300-8245 For aluminum rockers, 7/16"-20 thread .......................pack $69.99 ARP Rocker Arm Studs High Performance Series studs are made with heat-treated 8740 chromoly forgings with 180,000 psi tensile strength. Made in the USA. Price/Pack of 16 ARP-134-7101 Small Chevy, 3/8" top, 7/16" bottom .................................... $62.99 ARP-134-7103 Small Chevy and Pontiac V8, 7/16" top and bottom ............. $59.99 ARP-135-7101 Big Chevy, 7/16" top and bottom ......................................... $64.99 ARP-100-7101 Small Ford with stud girdle, 7/16" top and bottom .............. $64.99 Summit Racing™ Roller Rocker Arms for LS1/LS6 Our lightweight, CNC-machined aluminum roller rocker arms have premium needle-bearing fulcrums for stable operation, reduced friction and wear, and up to 20 additional horsepower. They’re direct replacement on LS1/LS6 engines. The 1.7:1 rockers fit under stock valve covers with stock springs. The 1.8:1 rockers, or engines with aftermarket cams may require valve cover spacers and a valve spring upgrade. The rockers come with pedestals and have a black anodized finish. Made in the USA. SUM-G6980 1.7:1 ratio..................................set of 16 $540.99 SUM-G6981 1.8:1 ratio..................................set of 16 $494.99 Melling Rocker Arms Made from stamped or cast steel, depending on the application, Melling stock replacement rocker arms meet or exceed OE specifications. Whether you’re fixing a top-end tick or doing a total rebuild, these high-quality components are critical to doing the job right the first time. Visit SummitRacing.com for detailed application information and complete kit contents. Price Each MEL-MRK401 Chevy, 265-400, 1955-1986 ................................................ $4.99 MEL-MRK-651 Chevy, 4.3L V6, 4.3-5.7L Gen I V8, 1987-2002 ................... $6.99 MEL-MR1341 GM, 4.8-6.2L LS, 1997-2020 ............................................. $13.99 MEL-MRK-610 Ford, 289-351W, 1964-78.................................................. $10.99 MEL-MRK-547 Ford, 351C/M, 400, 429/460, 1969-91 ................................ $8.99 MEL-MRK-548 Ford, 302/351W, 1978-2001 .............................................. $10.99 MEL-MRK-654 Ford, 300 I-6, 1985-96 ....................................................... $11.99 MEL-MR-929 Ford, 4.6-6.8L 2-V V8/V10, 1992-2018.............................. $13.99 MEL-MR-1851* Ford, 4.6-6.8L 2-V V8/V10, 2000-15.................................. $16.99 MEL-MR-850 Mopar, 361-440, left ............................................................ $9.99 MEL-MR-851 Mopar, 361-440, right .......................................................... $8.99 MEL-MRK-1333+ Dodge, 5.9L Cummins 24-V, 1998-2007, left .................... $49.99 MEL-MRK-1334+ Dodge, 5.9L Cummins 24-V, 1998-2007, right .................. $49.99 MEL-MR-1332^ Mopar, 3.2/3.6L Pentastar V6, 2011-21 ............................... $6.99 MEL-MRK-540-1 Oldsmobile, 260-403, 1965-85 ................................... pair $18.99 MEL-MRK-544-2 AMC, 304-401, 1974-91 ............................................. pair $21.99 MEL-MRK-551-2 AMC/Jeep, 4.0/4.2L I-6, 1983-2006 ............................ pair $14.99 *Improved roller oiling. +Includes one rocker arm, pivot, and crosshead. ^Non-PUG engines only. Summit Racing™ LS Rocker Arms All rocker arms listed below utilize the factory pedestal mounts. Visit SummitRacing.com for complete fitment information. Standard Rocker Arms Our roller-style LS rocker arms are made from high- quality ductile iron, so they’re a perfect choice for engine rebuilds and mild performance upgrades—all without breaking the bank. Price Each SUM-141550 NEW NEW! LS/LSX, 1.7 ratio, straight body .............................. $12.99 SUM-141551 NEW NEW! LS/LSX, 1.7 ratio, offset body ................................. $12.99 Pro LS Upgraded Rocker Arms Our Pro LS Upgraded rocker arms are made from high-grade cast steel with thicker webbing in critical areas for additional strength and long-lasting durability, especially with higher-rate springs and aggressive camshafts. Each set comes fully assembled with bearing steel trunnions, captive bearings, and heavy-duty retaining clips, plus they feature additional oiling provisions. Bolts included. Price/Set of 16 SUM-141556 LS1/LS2/LS6/LQ4/LQ9, 1.7 ratio...................................... $326.99 SUM-141554 L92/LS9/LS3, 1.7 ratio ..................................................... $326.99 SUM-141555 LS7, 1.8 ratio ................................................................... $328.99 Howards Cams Maximum Effort Stud Girdle Kits Reinforce your valvetrain with a Maximum Effort stud girdle kit from Howards Cams. The stud girdles are machined from high-quality aluminum, increasing the strength and rigidity of the rocker arm studs and eliminating flex for accurate rocker arm ratios. Each is given a purple anodized finish and includes locking hex-head adjusters. Made in the USA. Price/Kit HRS-90100 Chevy, 265-400, stock configuration, 3/8" studs ............. $269.99 HRS-90101 Chevy, 265-400, stock configuration, 7/16" studs ........... $269.99 HRS-90120 Chevy, 396-454, stock configuration, 7/16" studs ........... $369.99 HRS-90121 Chevy, 396-454, Dart, Brodix, AFR, and RHS heads ........ $369.99 HRS-90201 Ford, 289-351W, stock configuration, 7/16" studs .......... $279.99 COMP Cams® Chevy LS1 Rocker Arm Retrofit Trunnion Kit Upgrade your LS valvetrain with this COMP Cams retrofit trunnion kit. Each kit has 16 rugged 8620 steel alloy trunnions with caged roller bearings that increase rigidity and reliability. Recommended for circle track and drag racing classes where stock engine components are mandated. CCA-13702-KIT .......................................................................................... kit $184.95 Summit Racing™ LS Rocker Trunnion Kit Complete your cam and valve spring upgrade with this heavy-duty rocker trunnion kit from Summit Racing. The kit includes 16 micro-polished hardened steel trunnions, plus 32 high-strength C932 bronze bushings that resist damage and breakage better than traditional needle bearings. The trunnions have built-in oil channels for superior lubrication, and feature a large surface area for improved load distribution. Fits Gen III/IV Chevy LS engines. Snap rings included. Made in the USA. NOTE: Trunnion bearing tool required for installation (sold separately). SUM-141560 ................................................ kit $179.99
