Mr Gasket Mr. Gasket Header Bolt Set - Allen Head 3/8-16 x 3/4 Inch 916 2011-ford-f-550-super-duty-esi3871866 6L 3V engines with 12mm

6L 3V engines with 12mm spark plugs and are required when installing certain Ford Racing heads on Mustang GTs originally equipped with 'high thread' designs

Year Make Model Submodel 2012-2016 Buick LaCrosse Base 2012 Buick LaCrosse Convenience 2010-2011 Buick LaCrosse CX 2010-2011 Buick LaCrosse CXL 2010-2011 Buick LaCrosse CXS 2012-2016 Buick LaCrosse Leather 2012-2016 Buick LaCrosse Premium 2016 Buick LaCrosse Sport Touring 2012-2013 Buick LaCrosse Touring 2012-2017 Buick Regal Base 2011 Buick Regal CXL 2012-2014 Buick Regal GS 2012-2016 Buick Regal Premium 2014 Chevrolet Impala Eco 2013-2014 Chevrolet Malibu Eco

1988-1990 Plymouth Colt DL 1984 Plymouth Colt E 1989 Plymouth Colt GT 1985-1988 Plymouth Colt Premier 1984-1994 Plymouth Colt Vista 1992-1994 Plymouth Colt Vista SE 1990-1994 Plymouth Laser Base 1990-1994 Plymouth Laser RS 1978-1979 Plymouth Sapporo Base

Ford: Falcon 64 - 65 4

2006 Toyota Sienna 2007 Toyota Sienna 2007 Toyota Sienna 2011 Toyota Sienna 2011 Toyota Sienna 2002 Toyota Solara 1997 Toyota Supra 1993 Toyota T100 1995 Toyota Tacoma 1995

Mr Gasket Mr. Gasket Header Bolt Set - Allen Head 3/8-16 x 3/4 Inch 916 2011-ford-f-550-super-duty-esi3871866 6L 3V engines with 12mmFits AMC 290 401, Chevrolet Small Block 262 400, Chrysler 383 440 except Hemi, Pontiac 326 455, Oldsmobile 330 455 Mr Gasket Mr. Gasket Header Bolt Set Allen Head 3 8 16 x 3 4 Inch 916 Specifications: Brand Mr. Gasket Category Exhaust 17 Black Emission Code 5 Finish Black Oxide 10 Steel Product Type Header Bolts Size 3 8 16 x 3 4 Warning California Proposition 65 Warranty Manufacturer's Limited 1 Year Warranty Weight 0. 5 Brand Mr. Gasket Category