FPE Gas Engine Blocks

Plug kit FEATURES IN THE BOX BUILDER NOTES Rear main seal Deck Height: 9.251 Cylinder Bore: 4.110 Oil galley barbel plug Transmission dowel pins TECHNICAL SPECIFICATIONS Cam Bore: 2.3075" - 2.3088" Durabond GMP-9 cam bearings Main Bore: 2.7475" - 2.7485" Lifter Bore: 0.8430" - 0.8435" Maximum Cylinder Bore Size: 4.185 Head studs: Threaded for M11 bolts/studs LSR rear cover, rear cover gasket, and hardware The engine block is shipped with the following: Precision ground 1018/1020 Steel cam thrust plate Freedom Series LSR Standard Deck Wet Block Main studs: M10, 8740 alloy (190,000 PSI tensile strength) Final cylinder hone (sleeve inside diameter of 4.110 provided) Final deck surface (0.020 additional provided on the deck surface) Final OD on the crankshaft mains (0.003 additional provided for the final hone) Maximized crankshaft saddle radius: Optimized for performance under high-stress conditions. Lightweight: Weighs only 120 pounds with main caps, offering a strong yet lightweight solution. Heavy-duty deck thickness: Features a robust 0.750-inch deck thickness for enhanced durability. The camshaft and lifter bores are finished, honed, and ready for precision bearings and lifters. Cross-braced lifter valley: Provides added structural integrity and individual drain backs for improved reliability. Ductile iron sleeves: Provide a durable wear-resistant surface with improved shock absorption to handle high-performance applications. Priority Oil System: Oil rifling provides priority oil feed to the critical bottom-end components, reducing heat, wear, and risk of failure. The LSR block is semi-machined and requires final machining to the builder's final specifications for the application, required machining includes: Enhanced design: Includes additional stock to the front and rear valley walls for increased strength along with minimum 0.625-inch skirt wall thickness and a complete reinforced exoskeleton. Billet main caps: Premium billet construction ensures stability and precision fitment. Utilizes M10 main studs and side bolts along with dowels on the inner studs of the block for superior clamping and reliability. The FPE-LSR-SD10X is a premium Gen V LS Standard Deck Race Block designed for high-performance applications. Engineered with precision and built for durability, this race block delivers unmatched strength and compatibility with OEM LS accessories. Whether you're upgrading for competitive racing or seeking peak performance, the FPE-LSR-SD10X ensures reliability and excellence in every detail. Proudly made in the USA, it's a perfect choice for serious enthusiasts and professionals alike. Freedom Series LTR Standard Deck Wet Block.