Page 216 of GM Performance Parts 2006 Catalog by GM Parts Direct

Roller Rocker Arm Set, 1.7:1 ratio A Chrome Short Bowtie Valve Cover B Chrome Tall Bowtie Valve Cover C 214 Custom Aluminum Valve Covers D NOTE: NOTE: NOTE: NOTE: NOTE: NOTE: ROCKER ARMS Steel Rocker Arms 12523976 Steel Rocker Arm Assembly (not shown) Designed for use on Gen V Gen VI design 454 and 502 HO engines, these rocker arms have long slots for high-lift camshafts. Kit includes rocker arm and ball. One rocker assembly per package. Order 16 per engine. 12368082 Steel Long Slot Rocker Arm, 1.7:1 ratio (not shown) These 1.7:1 ratio hardened steel rocker arms have elongated slots to provide extra clearance for high-lift (.600" and greater) camshafts. Use with all 396-502 big-block heads with adjustable rockers. Each assembly includes rocker arm P/N 3959182 as well as the ball P/N 12338047 and nut P/N 3896648. Can be used on any Gen V or Gen VI by using rocker stud kit P/N 12495518. 12368085 Long Slot Rocker Arm Kit Set of 16 rocker arms with the balls and nuts. These long slot rocker arms are stamped H . Aluminum Roller Rocker Arm for 7/16" Studs Aluminum roller rockers have a 1.7:1 ratio for 7/16" studs. The bearings and fulcrum have an extra-wide design for load distribution and are lubricated with pressurized oil. The roller tip axle is made from 4130 steel, and the roller tip is machined and ground from 8620 steel. A Bowtie logo is machined into each rocker. Not for use with production height valve covers; use tall covers (see page 106). A. 12361323 Roller Rocker Arm Set, 1.7:1 ratio Set of 16 1.7:1 ratio roller rocker arms and nuts for 7/16" stud. Used on 572 engines. Use P/N 12361330 for single replacement part. VALVE COVERS Add a stylish finishing touch to your GM engine with our branded valve covers. GM Performance Parts valve covers are engineered to fit and seal perfectly. The diverse variety of designs allows personalization to suit any taste. Competition covers are designed to clear taller valvetrains. Ordering note: Valve covers are sold in pairs unless otherwise specified. B. 12342093 Chrome Short Bowtie Valve Cover Show-quality covers embossed with the famous Bowtie insignia and Chevrolet name. Standard height for use with 1965-1994 engines. May not clear brake booster on some Corvette models. C. 12342099 Chrome Tall Bowtie Valve Cover Show-quality covers embossed with the famous Bowtie insignia and Chevrolet name. Covers are taller than production parts to clear stud girdles and racing valvetrain components. For use on 1965-1994 engines and all Bowtie cylinder heads. Covers may not clear alternator and air conditioning compressor when installed on production engines. CHEVY BIG-BLOCK V-8

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