2021-22 Engine Catalog

ROCKER ARMS

LS Series Engines Chevrolet Performance LS Rocker Arms An easy bolt-on performance upgrade for smoother valvetrain operation and additional horsepower with increased rpm, without any further modifications. Part No. Description Stud Ratio Qty. GMP12696105 Steel Roller Rocker Arm, Offset Intake Position L92/LS3/LS9 8mm 1.7 1 GMP12681275 Steel Roller Rocker Arm, Intake & Exhaust Position LS1/LS2/LS6, Exhaust Position Only L92/LS3/LS9 8mm 1.7 1 GMP12579617 Steel Roller Rocker Arm, Exhaust Position LS7 8mm 1.8 1 GMP12579615 Steel Roller Rocker Arm, Offset Intake Position LS7 8mm 1.8 1

Stainless Steel Rocker Arms LS3/L-92 Part No.

Description

Stud

Ratio Qty.

PRW Industries PQX0236431

Platinum Series S/S, Offset Intake, 8mm Hex-Head Fasteners

Pedestal Mount 1.7 16

Shaft-Mount Rocker Arm Systems LS1/LS2/LS6 and Vortec 4800, 5300, 6000 with Cathedral-Port Heads Part No. Description

Ratio

Qty.

Comp Cams COM1500

Aluminum Rockers, 8620 Hardened Steel Shafts, Will Need Spacer Covers Max-Lift BSR, Steel Rockers, Bushed, 8620 Hardened Steel Shafts

1.7 1.7

16 16

COM1981-16

PRW Industries PQX3534631

Platinum Series, 6061-T6 Billet Aluminum Roller Rockers, Billet Steel Pedestals, Billet Aluminum Shaft Mount, with Pushrod Length Checkers, Components and Hardware, Black Anodized

1.7

16

LS3/L92 with Rectangular-Port Heads Part No.

Description

Ratio

Qty.

Comp Cams

COM1500

Aluminum Rockers With 8620 Hardened Steel Shafts, Will Need Valve Cover Spacers Max-Lift BSR, Steel Rockers, Bushed, 8620 Hardened Steel Shafts 2024 Billet Aluminum Roller Rockers, 8620 Hardened Steel Shafts

1.7 1.7 1.7

16 16 16

COM1982-16

COM1521

PRW Industries PQX3536431

Platinum Series, 6061-T6 Billet Aluminum Roller Rockers, Billet Steel Pedestals, Billet Aluminum Shaft Mount, with Pushrod Length Checkers, Components and Hardware, Black Anodized 1.7

16

Shaft-Mount Rocker Arm Systems LS7 Part No. Description

Ratio

Qty.

Comp Cams

COM1983-16

Max-Lift BSR, Steel Rockers, Bushed, 8620 Hardened Steel Shafts

1.7

16

T & D Machine

TDM2351-170/170 B TDM2351-180/180 B

Mast Motorsports Cylinder Head Only, .350 Int. O/S, .080 Exh. O/S Mast Motorsports Cylinder Head Only, .350 Int. O/S, .080 Exh. O/S

1.7/1.7 1.8/1.8

16 16

B These rockers have Spring Oil Hole (.040) Option # 0720.

Rocker Arm Components Part No. Description Chevrolet Performance GMP11588791

Replacement Rocker Arm Bolt, 8mm x 1.00 Thread, 1-7/8" Long, Each

GMP12600936

Replacement Rocker Arm Stand, L92/LS3/LS9, Each

Yella Terra

GMP11588791

YTRYT6279 YTRYT6580 YTRYT6581 YTRYT5060 YTRYT5099 YTRYT5115 YTRYT5117

Pedestal Spacers, 1.020" Dia. x 0.085" (26mm x 2.0mm), Each Pedestal Spacers, 1.020" Dia. x 0.100" (26mm x 2.5mm), Each Pedestal Spacers, 1.020" Dia. x 0.150" (26mm x 3.8mm), Each

Caged Roller Bearing, All Rockers, Each Roller, Pin, and Circlip Kit, Each Adjusting Screw and Nut, 24mm, Each Adjusting Screw and Nut, 28.4mm, Each

YTRYT6279

164

2021-22 ENGINE BUILDER CATALOG

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