Katech Engineering LLC - Engine Blocks

High-Performance Short Blocks & Complete Engine Assemblies

This category includes precision-machined engine blocks, professionally assembled short blocks, and complete long block assemblies intended for high-performance street and competition applications. Each foundation is produced from new or reconditioned castings that undergo controlled machining and verification processes to establish critical dimensions, including cylinder bore geometry, deck surface flatness, and main housing bore alignment. These parameters directly influence ring seal, bearing load distribution, and long-term durability under elevated cylinder pressure and sustained engine speed.

Short block assemblies consist of matched crankshafts, connecting rods, pistons, ring packages, and bearings selected for the intended operating range and power density. Rotating assemblies are balanced to appropriate tolerances and clearanced based on material properties, thermal expansion characteristics, and intended use, including naturally aspirated and forced induction configurations. Compression ratio, piston design, and ring specification are determined by fuel type, combustion strategy, and cylinder pressure targets to maintain structural integrity, sealing efficiency, and controlled oil consumption.

Long block assemblies incorporate cylinder heads, valvetrain components, camshaft and timing systems, and required sealing interfaces. Component selection and assembly procedures account for airflow requirements, valvetrain stability, and mechanical compatibility across the system. Valvetrain geometry, spring loads, pushrod length, and lifter operation are established to maintain control at the intended engine speed range. Oiling system considerations, including supply, drainback, and pressure regulation, are addressed as required by the application to support consistent lubrication under dynamic operating conditions