Edelbrock RHS LS Aluminum Race Block 9.750in Tall Deck 4.120in Bore 0.904in Lifter - 54901U-904

Block Specifications: Designed from heavy-duty A357-T6 aluminum material, 4.125”-4.165” siamese cast bore walls w/ press-in spun cast iron liner, Available in standard (9.240”) & tall (9.750”) deck heights w/ beefy .750” deck thickness, Both standard deck (5.67”/5.87”- same as LS7) & tall deck (5.94”/6.38”) cylinder liner lengths available, “Long arm friendly” – Accommodations for up to 4.6” stroke w/ standard rod pin diameters (2.100”) & oversized 60mm camshaft, Main cap surface area maximized at mating surface & large fillets from cap to cross bolts for added strength, Designed for clearance – side oil galley moved outboard & engineered rod clearance come standard, Significantly increased windage passage area under bores & around caps over LS7/LSX engines, 6 head bolt design w/ full water jacket around the cylinders (based on LS7 design), Bay-to-bay breathing improved w/ increased side window area versus LSX & LS7, Extra-large windows in valley for access to inboard “6th” head bolt, Extra-long liners for standard (5.87”) & tall (6.38”) decks

This Part Fits:

Year	Make	Model	Submodel
2001-2004	Avanti	II	Base
2006-2007	Cadillac	CTS	V
2010-2015	Chevrolet	Camaro	SS
2014-2015	Chevrolet	Camaro	Z/28
1998-2002	Chevrolet	Camaro	Z28
1998-2002	Chevrolet	Camaro	Z28 SS
2013	Chevrolet	Corvette	427
2008	Chevrolet	Corvette	427 Limited Edition Z06
2003	Chevrolet	Corvette	50th Anniversary Edition
2003	Chevrolet	Corvette	50th Anniversary Edition Pace Car
1997-2013	Chevrolet	Corvette	Base
2010-2013	Chevrolet	Corvette	Grand Sport
1998	Chevrolet	Corvette	Indianapolis 500 Pace Car
2006-2013	Chevrolet	Corvette	Z06
2011	Chevrolet	Corvette	Z06 Carbon
2014-2017	Chevrolet	SS	Base
2005-2006	Chevrolet	SSR	Base
2006-2009	Chevrolet	Trailblazer	SS
1998-2002	Pontiac	Firebird	Formula
1998-2002	Pontiac	Firebird	Trans Am
2009	Pontiac	G8	GXP
2004-2006	Pontiac	GTO	Base
2008-2009	Saab	9-7x	Aero