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RHS LS Block, Standard 9.240" Deck, .904 Lifter, 55 Roller Cam Bearing (Machined Only)

RHS LS Block, Standard 9.240" Deck, .904 Lifter, 55 Roller Cam Bearing (Machined Only)

Mfg Part #
54903U-904
NP#
EDE54903U-904
Brand
Edelbrock

Fits 2001 to 2004 Avanti II; 2006 to 2007 Cadillac CTS; 1997 to 2017 Chevrolet Camaro, Corvette, SS and 2 more models; 2 more makes. See every vehicle

  • Raised cam centerline (.388”/9.86mm) to allow larger stroke
  • 2 extra links in the timing chain – Timing sets available from COMP®
  • .904” lifters standard
  • 6 head bolt design w/ full water jacket around the cylinders (based on LS7 design)
  • RHS LS Block, Standard 9.240" Deck, .904 Lifter, 55 Roller Cam Bearing (Machined Only)
  • Rolled threads on all threaded holes for added strength
  • Gen III/Gen IV compliant with race mounts for Gen I, Gen II, Gen III & Gen IV engines
  • P1 MFG main stud kit standard with enough material in castings to accommodate up to a 0.5” fastener
  • Chilled main bearing bulkheads for added strength
  • Optimized billet main caps & improved windage
$10,626.99 CAD Ships Sep 18
Free shipping in Canada, ships Sep 18
Availability: This product is in one of our warehouses.
Book installation at our Service Centre

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Description

Engineers at RHS® have designed a high-performance aluminum engine block for GM LS applications to meet the needs of race and street performance engine builders alike. To go beyond the limitations of other existing LS blocks, the new RHS® LS Race Block is available in both standard deck and tall deck height confi gurations. Additionally, this innovative aluminum block features a raised cam centerline and outboard priority main oiling to allow rod clearance for a 4.600” stroke and to minimize windage in the crankcase. And for quality control assurance, RHS® conducts a CT scan (similar to a medical CAT scan) on each block to ensure maximum casting precision and consistency. When you combine unmatched finishing quality with added clearance for increased stroke applications, precision computer aided design and extra surface material to allow custom machining, you get the new benchmark for LS horsepower, torque and durability.

Fits these vehicles

YearMakeModel
2001 - 2004AvantiII
2006 - 2007CadillacCTS
1998 - 2002ChevroletCamaro
2010 - 2015ChevroletCamaro
1997 - 2013ChevroletCorvette
2014 - 2017ChevroletSS
2005 - 2006ChevroletSSR
2006 - 2009ChevroletTrailblazer
1998 - 2002PontiacFirebird
2009PontiacG8
2004 - 2006PontiacGTO
2008 - 2009Saab9-7x

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