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RHS LS Aluminum Race Block, Finished [9.240" Standard Deck | 4.125" Bore]

$5,466.27  $4,919.65
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The LS Race Block is now available with multiple configurations designed for added clearance and mass customization.  Available in both standard (9.240") and tall (9.750") deck heights with an extra-thick deck surface (.750"), this RHS® block features a raised cam centerline and priority main oiling via an oil galley that is shifted outboard to allow rod clearance for a much larger stroke (4.600") while also minimizing windage in the crankcase. Using a computer-aided design, the cylinder walls are Siamese cast with press-in spun cast iron liners. Cylinder liners are available in both standard deck (5.67"/5.87" – same as the LS7) and tall deck (5.94"/6.38") lengths. Also featured is a 6-bolt head design with a full water jacket around each cylinder (based on the LS7 design). Combine all of these features with a superior finish quality thanks to the RHS® patented Clean Cast Technology™, along with extra surface material to allow custom machining, and you’ve got a GM block that sets a new benchmark for LS horsepower, torque and durability. 

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  • PART NUMBER: 54903
  • FROM: RHS (RACING HEAD SERVICE)

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we added this on Monday 30 August, 2010.

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