RHS LS Block 54903U New in box
03-05-2016, 01:07 PM
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RHS LS Block 54903U New in box Category: Racing Parts
Price: $4595
Location (State): CT
Item Condition: Brand New
Shipping Information: Item Can be Shipped
LS Engine?: Fits LS Engine
This is a brand new RHS LS block #54903U. It is still in the box.
This block is recently manufactured.
This is the Standard deck height block 9.25".
It has the semi-finished bore size of 4.120" and is ready for final honing.
Manufacturer Specs:
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
Raised cam centerline (.388”/9.86mm) to allow larger stroke; 2 extra links in the timing chain – Timing sets available from COMP®
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
(203)264-3048
Last edited by SRR55BELAIR; 05-01-2016 at 03:35 PM.
