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Concept Performance Gen IV LSx Standard Deck 4.117' Bore Aluminum Engine Block LSR-SD1X

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CONSTRUCTION
-Cast in the USA from proprietary 356 Aluminum Ingot, Machined in the USA
-Heat treated to T-6 Specifications
-Block Tooling has been designed and engineered to eliminate casting inconsistencies

RE-INFORCED AREAS INCLUDED
-Triple cross braced lifter valley
-Extra material added to the front and rear valley walls
-Reinforced Deck

Availability: In Stock. May Ship From Manufacturer

$4,293.00