# COMP Cams Rocker Arm CS 1.6 3/8 Ultra Pr Ultra Pro Magnumâ„¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring Oversized trunnions, precision-sorted needle bearings and hardened Roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.Chevy V6 200-262 and V8 265-400 c.i.d. (SBC) - 1988 and later with Self Aligning Rockers - 3/8" Stud - 1.6 RatioInvestment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia. Unique black oxide exterior finish helps prevent corrosion and increases durability.Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.Feature Oversized trunnions, precision-sorted needle bearings and hardened Roller tips.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. This Part Fits: Year Make Model Submodel 1991-1993 Buick Commercial Chassis Base 2005-2007 Buick LaCrosse CXS 2002-2007 Buick Rendezvous CX 2002-2003,2005 Buick Rendezvous CX Plus 2002-2007 Buick Rendezvous CXL 2002-2003,2005 Buick Rendezvous CXL Plus 2004-2005 Buick Rendezvous Ultra 1992-1993 Buick Roadmaster Base 1991-1993 Buick Roadmaster Estate Wagon 1992-1993 Buick Roadmaster Limited 2005-2007 Buick Terraza CX 2005-2007 Buick Terraza CXL 1990-1992 Cadillac Brougham Base 1990-1992 Cadillac Brougham d'Elegance 1992-1993 Cadillac Commercial Chassis Brougham 2004-2007 Cadillac CTS Base 1993 Cadillac Fleetwood Base 1993 Cadillac Fleetwood Brougham 2004-2007 Cadillac SRX Base 2005-2007 Cadillac STS Base 1988-2005 Chevrolet Astro Base 1988-1995 Chevrolet Astro CL 1988-1995 Chevrolet Astro CS 1996-2005 Chevrolet Astro LS 1988-2005 Chevrolet Astro LT 1994-1999,2005 Chevrolet Blazer Base 1992-1993 Chevrolet Blazer Cheyenne 1996-2004 Chevrolet Blazer LS 1995-2001 Chevrolet Blazer LT 1988-1991 Chevrolet Blazer Scottsdale 1988-1994 Chevrolet Blazer Silverado 1994 Chevrolet Blazer Silverado Sport 1999-2001 Chevrolet Blazer Trailblazer 2001-2005 Chevrolet Blazer Xtreme 2003-2005 Chevrolet Blazer ZR2 1994-1997 Chevrolet C1500 Base 1988-1998 Chevrolet C1500 Cheyenne 1988-1992 Chevrolet C1500 Scottsdale 1988-1998 Chevrolet C1500 Silverado 1990-1998 Chevrolet C1500 WT 1992-1995 Chevrolet C1500 Suburban Base 1995 Chevrolet C1500 Suburban LS 1995 Chevrolet C1500 Suburban LT 1992-1994 Chevrolet C1500 Suburban Silverado 1994-1995 Chevrolet C2500 Base 1988-1995 Chevrolet C2500 Cheyenne 1988-1992 Chevrolet C2500 Scottsdale 1988-1995 Chevrolet C2500 Silverado 1994-1995 Chevrolet C2500 WT 1992-1995 Chevrolet C2500 Suburban Base 1995 Chevrolet C2500 Suburban LS 1995 Chevrolet C2500 Suburban LT 1992-1994 Chevrolet C2500 Suburban Silverado 1994-1995 Chevrolet C3500 Base 1988-1995 Chevrolet C3500 Cheyenne 1988-1992 Chevrolet C3500 Scottsdale 1988-1995 Chevrolet C3500 Silverado 1988,1993-1995 Chevrolet Camaro Base 1988-1990 Chevrolet Camaro Iroc-Z 1989-1992 Chevrolet Camaro RS 1992 Chevrolet Camaro RS Heritage Edition 1991-1992 Chevrolet Camaro Z28 1992 Chevrolet Camaro Z28 Heritage Edition 1988-1992 Chevrolet Caprice Base 1988-1996 Chevrolet Caprice Classic 1988-1990 Chevrolet Caprice Classic Brougham 1993-1994 Chevrolet Caprice Classic LS 1988-1990 Chevrolet Caprice Classic LS Brougham 1991-1993 Chevrolet Caprice Classic LTZ 1988 Chevrolet Corvette 35th Anniversary Edition 1988-1991 Chevrolet Corvette Base 2005-2007 Chevrolet Equinox LS 2005-2007 Chevrolet Equinox LT 1996-2007 Chevrolet Express 1500 Base 1996-2006 Chevrolet Express 1500 LS 2001-2002,2006 Chevrolet Express 1500 LT 1996-2005 Chevrolet Express 2500 Base 1996-2005 Chevrolet Express 2500 LS 1988-1995 Chevrolet G10 Beauville 1988-1995 Chevrolet G10 Chevy Van 1988-1995 Chevrolet G10 Sportvan 1988-1995 Chevrolet G20 Beauville 1988-1995 Chevrolet G20 Chevy Van 1988-1995 Chevrolet G20 Sportvan 1988-1996 Chevrolet G30 Beauville 1988-1996 Chevrolet G30 Chevy Van 1988-1996 Chevrolet G30 Hi-Cube 1988-1996 Chevrolet G30 Sportvan 2000-2005 Chevrolet Impala Base 2006-2007 Chevrolet Impala LS 2006-2007 Chevrolet Impala LT 2006-2007 Chevrolet Impala LTZ 2006-2007 Chevrolet Impala Police 1994-1997 Chevrolet K1500 Base 1988-1998 Chevrolet K1500 Cheyenne 1988-1992 Chevrolet K1500 Scottsdale 1988-1998 Chevrolet K1500 Silverado 1991 Chevrolet K1500 Sport 1990-1998 Chevrolet K1500 WT 1992-1995 Chevrolet K1500 Suburban Base 1995 Chevrolet K1500 Suburban LS 1995 Chevrolet K1500 Suburban LT 1992-1994 Chevrolet K1500 Suburban Silverado 1994-1995 Chevrolet K2500 Base 1988-1995 Chevrolet K2500 Cheyenne 1988-1992 Chevrolet K2500 Scottsdale 1988-1995 Chevrolet K2500 Silverado 1994-1995 Chevrolet K2500 WT 1992-1995 Chevrolet K2500 Suburban Base 1995 Chevrolet K2500 Suburban LS 1995 Chevrolet K2500 Suburban LT 1992-1994 Chevrolet K2500 Suburban Silverado 1994-1995 Chevrolet K3500 Base 1988-1995 Chevrolet K3500 Cheyenne 1988-1992 Chevrolet K3500 Scottsdale 1988-1995 Chevrolet K3500 Silverado 1992-1994 Chevrolet Lumina Euro 1995-1996 Chevrolet Lumina LS 1997 Chevrolet Lumina LTZ 1991-1994 Chevrolet Lumina Z34 1996 Chevrolet Lumina APV Base 1996 Chevrolet Lumina APV LS 2004-2007 Chevrolet Malibu LS 2004-2007 Chevrolet Malibu LT 2006-2007 Chevrolet Malibu LTZ 2004 Chevrolet Malibu Maxx 2004-2007 Chevrolet Malibu Maxx LS 2004-2007 Chevrolet Malibu Maxx LT 2006-2007 Chevrolet Malibu Maxx LTZ 2006-2007 Chevrolet Malibu Maxx SS 2006-2007 Chevrolet Malibu SS 1988 Chevrolet Monte Carlo Base 1988,2000-2007 Chevrolet Monte Carlo LS 2003 Chevrolet Monte Carlo LS Competition 2003 Chevrolet Monte Carlo LS Sport 2006-2007 Chevrolet Monte Carlo LT 2006 Chevrolet Monte Carlo LTZ 1988 Chevrolet Monte Carlo SS 1995-1997 Chevrolet Monte Carlo Z34 1988 Chevrolet R10 Suburban Scottsdale 1988 Chevrolet R10 Suburban Silverado 1989-1991 Chevrolet R1500 Suburban Scottsdale 1989-1991 Chevrolet R1500 Suburban Silverado 1988 Chevrolet R20 Cheyenne 1988 Chevrolet R20 Custom Deluxe 1988 Chevrolet R20 Scottsdale 1988 Chevrolet R20 Silverado 1988 Chevrolet R20 Suburban Scottsdale 1988 Chevrolet R20 Suburban Silverado 1989-1991 Chevrolet R2500 Suburban Scottsdale 1989-1991 Chevrolet R2500 Suburban Silverado 1988 Chevrolet R30 Cheyenne 1988 Chevrolet R30 Custom Deluxe 1988 Chevrolet R30 Scottsdale 1988 Chevrolet R30 Silverado 1989-1991 Chevrolet R3500 Cheyenne 1989-1990 Chevrolet R3500 Scottsdale 1989-1991 Chevrolet R3500 Silverado 1991 Chevrolet S10 Baja 1988-2003 Chevrolet S10 Base 1988-1990 Chevrolet S10 Durango 1992-1993 Chevrolet S10 EL 1994-2004 Chevrolet S10 LS 1988-1989 Chevrolet S10 Sport 1994-1998 Chevrolet S10 SS 1988-1992 Chevrolet S10 Tahoe 1999-2003 Chevrolet S10 Xtreme 1994-2003 Chevrolet S10 ZR2 2002-2004 Chevrolet S10 ZR5 1988-1994 Chevrolet S10 Blazer Base 1988-1989 Chevrolet S10 Blazer High Country 1994 Chevrolet S10 Blazer LT 1988-1990,1992 Chevrolet S10 Blazer Sport 1988,1990-1994 Chevrolet S10 Blazer Tahoe 1991-1994 Chevrolet S10 Blazer Tahoe LT 1999-2005 Chevrolet Silverado 1500 Base 1999-2006 Chevrolet Silverado 1500 LS 1999-2005 Chevrolet Silverado 1500 LT 2002-2004,2006-2007 Chevrolet Silverado 1500 WT 2004 Chevrolet Silverado 1500 Z71 Off-Road 2007 Chevrolet Silverado 1500 Classic LS 2007 Chevrolet Silverado 1500 Classic WT 1995 Chevrolet Tahoe Base 1995 Chevrolet Tahoe LS 1995 Chevrolet Tahoe LT 2005-2007 Chevrolet Uplander Base 2005-2007 Chevrolet Uplander LS 2005-2007 Chevrolet Uplander LT 1988 Chevrolet V10 Suburban Scottsdale 1988 Chevrolet V10 Suburban Silverado 1989-1991 Chevrolet V1500 Suburban Scottsdale 1989-1991 Chevrolet V1500 Suburban Silverado 1988 Chevrolet V20 Suburban Scottsdale 1988 Chevrolet V20 Suburban Silverado 1989-1991 Chevrolet V2500 Suburban Scottsdale 1989-1991 Chevrolet V2500 Suburban Silverado 1988 Chevrolet V30 Cheyenne 1988 Chevrolet V30 Custom Deluxe 1988 Chevrolet V30 Scottsdale 1988 Chevrolet V30 Silverado ## Details - **Price:** 63.41 CAD - **Vendor:** COMP Cams - **Type:** Rocker Arms ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 63.41 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Primary - Logo Image - Logo Image --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/comp-cams-rocker-arm-cs-1-6-3-8-ultra-pr) > Updated: 2026-06-26