14mm Thread - .691 in Reach - Tapered Seat - Single Pack

---

MSD's spark plugs are engineered to improve the efficiency of the combustion process to create the most power possible combined with increased durability. The center tip of the plug is made from iridium to promote the best spark and increase resilience. A proprietary ceramic material enhances the dielectric strength of the plug housing forcing the spark, even under extreme cylinder pressures, to jump across the plug gap to the ground electrode. This electrode is machined to expose more spark to the incoming gases to promote the most effective combustion event possible.

• Proprietary plug design inside and out
• Designed for use on high performance vehicles that utilize high output ignition systems
• Machined electrode increases exposure to the flame to improve combustion
• MSD’s proprietary ceramic formula provides the highest dielectric strength
• Yttrium ground electrode reduces the chance of pre-ignition
• Iridium tip improves cold starts
• All spark plugs tested prior to packaging and shipping
• Unique insulator design improves spark isolation
• Lower voltage Requirements for longer coil life

---

Information:

Holley Performance Emission Code 2: This part is legal for sale and use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it is a direct or consolidated replacement part. The following vehicles are considered Emissions Controlled Vehicles: 1966 and newer U.S. manufactured California Certified vehicles/1968 and newer U.S. manufactured Federally Certified vehicles/1968 and newer Foreign manufactured vehicle

---

Application Summary:

Year	Make/Model
2005	Buick Allure
1987-1989	Buick Century
1993-2001	Buick Century
1994-2001	Buick LeSabre
1994-2001	Buick Park Avenue
1988-2001	Buick Regal
1995-1999	Buick Riviera
1987-1989	Buick Skyhawk
1994-1995	Buick Skylark
1987-1988	Cadillac Cimarron
1999-2000	Cadillac Escalade
1996-2005	Chevrolet Astro
1987-1996	Chevrolet Beretta
2005	Chevrolet Blazer
1988-1999	Chevrolet C1500
1996-1999	Chevrolet C1500 Suburban
1996-2000	Chevrolet C2500
1996-1999	Chevrolet C2500 Suburban
1996-2000	Chevrolet C3500
1995-2002	Chevrolet Camaro
1987-1993	Chevrolet Cavalier
1987-1990	Chevrolet Celebrity
1990-1996	Chevrolet Corsica
1996-2002	Chevrolet Express 1500
2006-2010	Chevrolet Express 1500
1996-2002	Chevrolet Express 2500
1996-2002	Chevrolet Express 3500
1995	Chevrolet G30
2002	Chevrolet Impala
2005-2008	Chevrolet Silverado 1500
2007	Chevrolet Silverado 1500 Classic
2013	Chevrolet Silverado 2500 HD
1996-2000	Chevrolet Tahoe
1997-2005	Chevrolet Venture
1996-1999	GMC C1500
1996-1999	GMC C1500 Suburban
1996-1999	GMC C2500 Suburban
1996-2000	GMC C3500
2005	GMC Jimmy
1996-1999	GMC K1500
1996-1999	GMC K1500 Suburban
1996-2000	GMC K2500
1996-1999	GMC K2500 Suburban
1996-2000	GMC K3500
1996-1999	GMC P3500
1996-2005	GMC Safari
1996-2002	GMC Savana 1500
2004-2013	GMC Savana 1500
1996-2002	GMC Savana 2500
2004-2005	GMC Savana 2500
1996-2002	GMC Savana 3500
2004-2009	GMC Sierra 1500
2007	GMC Sierra 1500 Classic
2004	GMC Sonoma
1996-2000	GMC Yukon
1994-1999	Oldsmobile 88
1994-1996	Oldsmobile 98
1994-1998	Oldsmobile Achieva
1999-2001	Oldsmobile Alero
1997-1999	Oldsmobile Cutlass
1987-1989	Oldsmobile Cutlass Ciera
1993-1996	Oldsmobile Cutlass Ciera
1987-1989	Oldsmobile Cutlass Cruiser
1988-1997	Oldsmobile Cutlass Supreme
1987-1988	Oldsmobile Firenza
1998-1999	Oldsmobile Intrigue
1996-1999	Oldsmobile LSS
1997-1998	Oldsmobile Regency
1987-1991	Pontiac 6000
2001-2002	Pontiac Aztek
1993-2002	Pontiac Bonneville
1995-2002	Pontiac Firebird