Name: 12 Pcs
SKU: BCHW-66827
Price: 32.95 USD
Availability: InStock

PROFORM Wedge-Locking Header Bolts ELIMINATE the need to constantly re-tighten collector bolts, and without the need for clips, pins, racing-wire, chemicals or gunk. The secret is in the Wedge-Locking Washer’s super-hardened external teeth that "bite" into the bottom of the bolt head and the top flange surface. Vibrations that normally cause other bolts to loosen, are blocked by the wedge-locking action that uses tension, instead of friction to stay snug. In fact, contact with oil actually facilitates the effect. Installs/uninstalls with a normal wrench, lubricate, and then reuse. Each set comes with twelve Hex Head, Grade 8 (12.9) steel bolts (3/8"-16 thread, 3/4" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.

Additional Attributes:

GTIN: 00037995667512
Material: Steel
Color: Black Oxide
Bolt Grade: 8
Thread Type: Fine
Thread Diameter: 16
Head Drive Type: Hex
Applications: Fits GM V6, SB 265-400, Buick, Olds, Pontiac 79 and earlier, Mopar BB 383-440 exc 413, AMC V8’s w 3/8in bolts
Color: Black Oxide
Diameter: 3/8-in.
Feature/Benefit: Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations.
Finish: Black Oxide
Length: 3/4 inch
Material: Steel
Part Type: Header Bolts

Extended Information:

Emissions : CARB Eligible
Life Cycle Status: Available To Order

Packaging:

Quantity of Each: 1
Package UOM: EA
Dimension: 6.75 x 4.5 x 1.75 inches
Weight: 0.65 PG

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Make	Model	Sub-model	Years
Chevrolet	Astro	CL	1994,1993,1992,1991,1990,1989,1988,1987,1986,1985
		CS	1994,1993,1992,1991,1990,1989,1988,1987,1986,1985
		LS	2000,1999,1998,1997,1996
		LT	2000,1999,1998,1997,1996,1994,1993,1992,1991,1990,1989,1988,1987
	B60	B6P042	1990,1989,1988,1987,1986,1985,1984,1983,1982,1981
	Blazer	Cheyenne	1993,1992
		Custom Deluxe	1987
		Deluxe	1997,1996,1995
		LS	2000,1999,1998,1997,1996
		LT	2000,1999,1998,1997,1996,1995
		Scottsdale	1991,1990,1989,1988
		Silverado	1994,1993,1992,1991,1990,1989,1988,1987
		Silverado Sport	1994
		Trailblazer	2000,1999
	C10	Big Ten	1980,1978
		Cheyenne	1981,1980,1978,1977,1976,1975
		Custom	1986,1985,1984,1983,1982,1981,1980,1978,1977,1976,1975
		Custom Deluxe	1980,1978,1977,1976,1975
		Deluxe	1981
		Scottsdale	1986,1985,1984,1983,1982,1981,1980,1978,1977,1976,1975
		Silverado	1986,1985,1984,1983,1982,1981,1980,1978,1977,1976,1975
	C10 Suburban	Custom	1986,1985,1984,1983,1982,1981
		Custom Deluxe	1980,1978,1976,1975
		Deluxe	1981
		Scottsdale	1986,1985,1984,1982,1980,1978,1976,1975
		Silverado	1986,1985,1984,1983,1982,1980,1978,1976,1975
	C15	Cheyenne	1985,1984,1983,1982
		Custom	1985,1984,1983,1982
		Sport	1984
	C1500	Cheyenne	1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988
		LS	1999
		Scottsdale	1992,1991,1990,1989,1988
		Silverado	1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988
		WT	1998,1997,1996,1995,1994,1993,1992,1991,1990
	C1500 Suburban	LS	1999,1998,1997,1996,1995
		LT	1999,1997,1996,1995
		Silverado	1994,1993,1992
	C20	Cheyenne	1987,1986,1981,1980,1978,1976,1975
		Custom	1986,1985,1984,1983,1982,1981
		Custom Deluxe	1980,1978,1976,1975
		Deluxe	1981
		Scottsdale	1986,1985,1984,1983,1982,1981,1980,1978,1976,1975
		Silverado	1986,1985,1984,1983,1982,1981,1980,1978,1976,1975
	C20 Suburban	Custom	1986,1985,1984,1983,1982,1981
		Custom Deluxe	1978,1976,1975
		Deluxe	1981
		Scottsdale	1986,1985,1984,1982,1978,1976,1975
		Silverado	1986,1985,1984,1983,1982,1976,1975
	C2500	400 SS	1999,1998,1997,1996,1995,1993
		60th Anniversary	1995
		Austera	1999
		Cheyenne	1999,1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988
		Custom	1999,1998,1997,1996,1995,1993
		LS	2000,1999
		Scottsdale	1992,1991,1990,1989,1988
		Silverado	1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988
		WT	1998,1995,1994
	C2500 Suburban	LS	1999,1998,1997,1996,1995
		LT	1997,1996,1995
		Silverado	1994,1993,1992
	C30	Cheyenne	1981,1978,1976,1975
		Custom	1986,1985,1984,1983,1982,1981
		Custom Deluxe	1978,1976,1975
		Deluxe	1981
		Scottsdale	1986,1985,1984,1983,1982,1981,1978,1976,1975
		Silverado	1986,1985,1984,1983,1982,1981,1978,1976,1975
	C35	Cheyenne	1999,1998,1997,1996
		Custom	2000,1999
		Heavy Duty	2000,1999,1998,1997
		Tipico	1998,1997,1996
	C3500	Cheyenne	1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988
		LS	2000,1999
		Scottsdale	1992,1991,1990,1989,1988
		Silverado	1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988
	C50	C5D042	1990,1989,1988,1987,1986,1985,1984,1983,1982
	C60	C6D042	1990,1989,1988,1987,1986,1985,1984,1983,1982
		C6D062	1982
	C70	C7D042	1986
	Camaro	Berlinetta	1986,1985,1984,1983,1982
		Indianapolis 500 Pace Car	1993
		Iroc-Z	1990,1989,1988,1987,1986,1985
		LT	1987,1978,1977,1976,1975,1974
		LT Rally Sport	1978,1977,1976
		Rally Sport	1978,1977,1976
		RS	1992,1991,1990,1989,1975
		RS Heritage Edition	1992
		Sport	1987,1986,1985,1984,1983,1982
		Z28	2000,1999,1998,1997,1996,1994,1993,1992,1991,1987,1986,1985,1984,1983,1982,1978,1977,1974
		Z28 Heritage Edition	1992
		Z28 Indianapolis 500 Pace Car	1982
		Z28 SS	2000,1999,1998
	Caprice	Classic	1996,1995,1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1980,1978,1977,1976,1975,1974
		Classic Brougham	1990,1989,1988,1987,1986
		Classic Estate	1982,1978,1977,1976
		Classic Landau	1980,1978,1977,1976
		Classic LS	1994,1993
		Classic LS Brougham	1990,1989,1988,1987
		Classic LTZ	1993,1992,1991
		Classic Sport	1980,1976,1975
		Estate	1974
		Estate Wagon	1975
	Celebrity	CL	1983,1982
		Classic	1985
		CS	1982
		Estate	1985
		Eurosport	1985,1984
	Corvette	35th Anniversary Edition	1988
		40th Anniversary Edition	1993
		Grand Sport	1996
		Indianapolis 500 Pace Car	1998,1995,1986,1978
		Silver Anniversary Edition	1978
		Stingray	1976,1975
		ZR-1	1995,1994,1993,1992,1991,1990
	El Camino	Classic	1976,1975
		Conquista	1986,1985,1984,1983,1982,1981,1978
		Royal Knight	1981
		SS	1987,1986,1985,1984,1983,1982,1981,1978,1976,1975
	Express 1500	LS	2000,1999,1998,1997,1996
	Express 2500	LS	2000,1999,1998,1997,1996
	Express 3500	LS	2000,1999,1998,1997,1996
	G10	Beauville	1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1981,1978,1977,1976,1975
		Bonaventure	1987,1986,1984,1983,1982,1981
		Chevy Van	1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1981,1978,1977,1976,1975
		Sportvan	1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1981,1978,1977,1976,1975
	G20	Beauville	1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1978,1977,1976,1975
		Bonaventure	1984,1983
		Chevy Van	1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1978,1977,1976,1975
		Nomad	1978
		Sportvan	1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1978,1977,1976,1975
	G30	Beauville	1996,1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1978,1977,1976,1975
		Bonaventure	1984,1983
		Chevy Van	1996,1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1978,1977,1976,1975
		Hi-Cube	1996,1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1978,1977,1976,1975
		Sportvan	1996,1994,1993,1992,1991,1990,1989,1988,1987,1986,1985,1984,1983,1982,1978,1977,1976,1975
	Impala	Custom	1976,1975
		Custom Landau	1976
		Estate	1982,1981
		Landau	1978
		S	1976
		Sport	1980,1976,1975
		SS	1996,1995,1994
	K10	Cheyenne	1981,1978,1976,1975
		Custom	1986,1985,1984,1983,1982,1981
		Custom Deluxe	1978,1976,1975
		Deluxe	1981
		Scottsdale	1986,1985,1984,1983,1982,1981,1978,1976,1975
		Silverado	1986,1985,1984,1983,1982,1981,1978,1976,1975
	K10 Suburban	Custom	1986,1985,1984,1983,1982,1981
		Custom Deluxe	1978,1976,1975
		Deluxe	1981
		Scottsdale	1986,1985,1984,1982,1978,1976,1975
		Silverado	1986,1985,1983,1982,1976,1975
	K1500	Cheyenne	1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988
		LS	1999
		Scottsdale	1992,1991,1990,1989,1988
		Silverado	1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988
		Sport	1991
		WT	1998,1997,1996,1995,1994,1993,1992,1991,1990
	K1500 Suburban	LS	1999,1998,1997,1996,1995
		LT	1999,1997,1996,1995
		Silverado	1994,1993,1992
	K20	Cheyenne	1981,1978,1977,1976,1975
		Custom	1986,1985,1984,1983,1982,1981
		Custom Deluxe	1978,1977,1976,1975
		Deluxe	1981
		Scottsdale	1986,1985,1984,1983,1982,1981,1978,1977,1976,1975
		Silverado	1986,1985,1983,1982,1981,1978,1977,1976,1975
	K20 Suburban	Custom	1986,1985,1984,1983,1982,1981
		Custom Deluxe	1978,1977,1976,1975
		Deluxe	1981
		Scottsdale	1986,1985,1984,1982,1978,1977,1976,1975
		Silverado	1986,1985,1983,1982,1977,1976,1975
	K2500	Cheyenne	1998,1997,1996,1994,1993,1992,1991,1990,1989,1988
		LS	2000,1999
		Scottsdale	1992,1991,1990,1989,1988
		Silverado	1998,1997,1996,1994,1993,1992,1991,1990,1989,1988
		WT	1998,1994
	K2500 Suburban	LS	1999,1998,1997,1996
		LT	1997,1996
		Silverado	1994,1993,1992
	K30	Cheyenne	1978,1977
		Custom	1986,1985,1984,1983,1982
		Custom Deluxe	1978,1977
		Scottsdale	1986,1985,1984,1983,1982,1978,1977
		Silverado	1986,1985,1984,1983,1982,1978,1977
	K3500	Cheyenne	1998,1997,1996,1994,1993,1992,1991,1990,1989,1988
		LS	2000,1999
		Scottsdale	1992,1991,1990,1989,1988
		Silverado	1998,1997,1996,1994,1993,1992,1991,1990,1989,1988
	K5 Blazer	Cheyenne	1978,1977,1976,1975
		Custom	1986,1985,1984,1983,1982
		Custom Deluxe	1978,1977,1975
		Scottsdale	1984
		Silverado	1986,1985,1984,1983,1982,1978
	Laguna	S3	1976,1975
	Malibu	Classic	1983,1982,1978,1977,1976,1975,1974
		Classic Estate	1978,1976,1975
		Classic Landau	1978,1977,1976
		Classic Sport	1977
		Estate	1974
		Landau	1976
		Sport	1977
	Monte Carlo	CL	1983
		Landau	1980,1978,1976,1974
		LS	1988,1987,1986
		S	1976,1975
		Sport	1980,1978
		SS	1988,1987,1986,1985,1984,1983
	Monza	2+2	1978,1976,1975
		2+2 Sport	1978
		2+2 Spyder	1978,1976
		S	1978,1975
		Sport	1978
	Nova	Concours	1976
		Custom	1978,1975,1974
		LN	1975
		Police	1978,1976,1975
		Rally	1978
		SS	1976
	P10	Step-Van	1978,1975
	P20	Step-Van	1989,1988,1987,1985,1984,1983,1982,1981,1978,1976,1975
	P30	Step-Van	1990,1989,1988,1987,1985,1984,1983,1982,1981,1978,1976,1975
	P60	P6T042	1990,1989,1988,1987,1986,1985,1984,1983
	R10	Custom Deluxe	1987
		Scottsdale	1987
		Silverado	1987
	R10 Suburban	Custom Deluxe	1987
		Scottsdale	1988,1987
		Silverado	1988,1987
	R1500 Suburban	Scottsdale	1991,1990,1989
		Silverado	1991,1990,1989
	R20	Cheyenne	1988
		Custom Deluxe	1988,1987
		Scottsdale	1988,1987
		Silverado	1988,1987
	R20 Suburban	Custom Deluxe	1987
		Scottsdale	1988,1987
		Silverado	1988,1987
	R2500	Silverado	1989
	R2500 Suburban	Scottsdale	1991,1990,1989
		Silverado	1991,1990,1989
	R30	Cheyenne	1988
		Custom Deluxe	1988,1987
		Scottsdale	1988,1987
		Silverado	1988,1987
	R3500	Cheyenne	1991,1990,1989
		Scottsdale	1990,1989
		Silverado	1991,1990,1989
	S10	Baja	1991
		Durango	1990,1989,1988
		EL	1993,1992
		LS	2000,1999,1998,1997,1996,1994
		Sport	1989,1988
		SS	1998,1997,1996,1994
		Tahoe	1992,1991,1990,1989,1988
		Xtreme	2000,1999
		ZR2	2000,1999,1998,1997,1996,1994
	S10 Blazer	High Country	1989,1988
		LT	1994
		Sport	1992,1990,1989,1988
		Tahoe	1994,1993,1992,1991,1990,1988
		Tahoe LT	1994,1993,1992,1991
	Silverado	LS	1999,1998
		LT	1999,1998
		LX	1998
		SLE	1997,1996
		SLT	1997
		SLX	1997,1996
	Silverado 1500	LS	2000,1999
		LT	2000,1999
		WT	2009
	Silverado 2500	400 SS	2000
		Cheyenne	2000
		Custom	2000
	Sonora	LS	2000
		LT	2000
	Suburban 1500	Cheyenne	1996
		Custom	1996
		LS	2000,1999,1998
		LT	2000,1999,1998
		LX	1998
		SLE	1997
		SLT	1997
		SLX	1997
	Tahoe	Limited	2000
		LS	1999,1998,1997,1996
		LT	1999,1998,1997,1996
		Z71	2000
	V10	Custom Deluxe	1987
		Scottsdale	1987
		Silverado	1987
	V10 Suburban	Custom Deluxe	1987
		Scottsdale	1988,1987
		Silverado	1988,1987
	V1500 Suburban	Scottsdale	1991,1990,1989
		Silverado	1991,1990,1989
	V20	Custom Deluxe	1987
		Scottsdale	1987
		Silverado	1987
	V20 Suburban	Custom Deluxe	1987
		Scottsdale	1988,1987
		Silverado	1988,1987
	V2500 Suburban	Scottsdale	1991,1990,1989
		Silverado	1991,1990,1989
	V30	Cheyenne	1988
		Custom Deluxe	1988,1987
		Scottsdale	1988,1987
		Silverado	1988,1987
	V3500	Cheyenne	1991,1990,1989
		Scottsdale	1990,1989
		Silverado	1991,1990,1989
	W3500 Tiltmaster	W3S042	2000,1999,1998,1997,1996
	W4500 Tiltmaster	W4S042	2000,1999,1998,1997,1996,1994,1993