Designed for modified Gen III-IV engines, the Victor LS Series 90mm throttle bodies increase flow and horsepower in high-performance street or competition applications. Throttle bodies #3864/#38643 include a LS1 stock-style TPS and IAC. Throttle body #386403 does not include the TPS and IAC. Extra idle control is provided with the addition of an idle bleed screw. They have an LS1/LS2 flange that can be mounted on aftermarket LS1 manifolds with a 90mm opening as well as LS2/LS7 factory manifolds. They do not retain the lower water tube and are perfect for enthusiasts who want to use an LS2 or LS7 in an older vehicle with no fly-by-wire throttle.

This Part Fits:

Year	Make	Model	Submodel
2007-2009	Chevrolet	Avalanche	LS
2007-2009	Chevrolet	Avalanche	LT
2007-2009	Chevrolet	Avalanche	LTZ
2002-2005	Chevrolet	Avalanche 1500	Base
2005-2006	Chevrolet	Avalanche 1500	LS
2005-2006	Chevrolet	Avalanche 1500	LT
2002-2003	Chevrolet	Avalanche 1500	North Face
2002-2003	Chevrolet	Avalanche 1500	On Road Edition
2003	Chevrolet	Avalanche 1500	WBH
2004-2006	Chevrolet	Avalanche 1500	Z66
2002-2006	Chevrolet	Avalanche 1500	Z71
2009-2012	Chevrolet	Colorado	LT
2005-2007	Chevrolet	Corvette	Base
2003-2009	Chevrolet	Express 1500	Base
2003-2009	Chevrolet	Express 1500	LS
2006-2009	Chevrolet	Express 1500	LT
2003-2005	Chevrolet	Express 2500	Base
2003-2005	Chevrolet	Express 2500	LS
2006-2009	Chevrolet	Impala	SS
2006-2007	Chevrolet	Monte Carlo	SS
1999-2005	Chevrolet	Silverado 1500	Base
1999-2006	Chevrolet	Silverado 1500	LS
1999-2009	Chevrolet	Silverado 1500	LT
2007-2009	Chevrolet	Silverado 1500	LTZ
2002,2004-2009	Chevrolet	Silverado 1500	WT
2004	Chevrolet	Silverado 1500	Z71
2007	Chevrolet	Silverado 1500 Classic	LS
2007	Chevrolet	Silverado 1500 Classic	LT
2007	Chevrolet	Silverado 1500 Classic	WT
1999-2000	Chevrolet	Silverado 2500	Base
1999-2000	Chevrolet	Silverado 2500	LS
1999-2000	Chevrolet	Silverado 2500	LT
2011-2013	Chevrolet	Silverado 2500 HD	LT
2011-2013	Chevrolet	Silverado 2500 HD	LTZ
2011-2013	Chevrolet	Silverado 2500 HD	WT
2011-2013	Chevrolet	Silverado 3500 HD	LT
2011-2013	Chevrolet	Silverado 3500 HD	LTZ
2011-2013	Chevrolet	Silverado 3500 HD	WT
2003-2004	Chevrolet	SSR	Base
2000-2001,2006	Chevrolet	Suburban 1500	Base
2000-2009	Chevrolet	Suburban 1500	LS
2000-2009	Chevrolet	Suburban 1500	LT
2007-2009	Chevrolet	Suburban 1500	LTZ
2004-2006	Chevrolet	Suburban 1500	Z71
2000-2001,2006	Chevrolet	Tahoe	Base
2000-2009	Chevrolet	Tahoe	LS
2000-2009	Chevrolet	Tahoe	LT
2007-2009	Chevrolet	Tahoe	LTZ
2003-2006	Chevrolet	Tahoe	Z71
2008	Chevrolet	Trailblazer	Base
2006-2007	Chevrolet	Trailblazer	LS
2006-2008	Chevrolet	Trailblazer	LT
2003-2006	Chevrolet	Trailblazer EXT	LS
2003-2006	Chevrolet	Trailblazer EXT	LT
2003-2004	Chevrolet	Trailblazer EXT	North Face