5.3L Engine Short Block Assembly

The Ford Performance 5.3L Modular Stroker Short Block (M-6009-B53) is a high-performance engine assembly engineered for increased displacement and power potential. Built upon a 4.6L based Modular foundation, this short block offers a 5.3L (323 cubic inches) displacement with a bore of 3.700 inches and a stroke of 3.750 inches. Key internal components include forged aluminum Mahle pistons with a 30.48 mm compression height and a valve notch designed to accommodate three-valve cylinder heads. The assembly also features forged H-beam connecting rods with full floating pins and locks, a forged steel crankshaft, and Clevite/King rod and main bearings. A high-volume oil pump is included to ensure adequate lubrication. It is crucial to check piston-to-valve clearance with any high-lift camshaft, with a recommended minimum of .100" intake, .125" exhaust, and .060" radial clearance. The crankshaft is internally balanced for neutral balance dampers and flywheels. Users must also ensure a performance oil pan and pickup tube are used, checking for adequate clearance between the pickup tube and the crankshaft, as well as the bottom of the pan (½" +/- 1/16"). Certain front cover applications may require omitting a specific bolt during installation. It is important to note that while the product is listed under 'Wheels and Tires' in the provided context, the evidence clearly indicates this is an engine component, specifically a short block assembly.