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CP Performance Boaters Shopping and Product Info Guide
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Short Blocks

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M&M Performance Machine 555 Short Block Assemblies
 

Short block assemblies: These start with a "new" dart "Big M" splayed 4-Bolt that is fully machined and race prepped. Including deck surfacing and squaring, cylinder boring and honing with torque plates, cam bearing installation, lifter valley screen installation and jet wash. Next a Callies 4.250" Stroker D/S series crankshaft, J&E/SRP forged piston, Manley H-beam connecting rods, plasma moly ring set, and Federal Mogul Race bearing set. Engines are digitally internally balanced and professionally assembled.

Available Labor Option: (Labor ONLY, PARTS sold separately) Machining of the lifter valley for hydraulic roller cam use, installation and degree of camshaft, set camshaft end play, install timing chain set, machining and fitting of timing cover, installation timing cover gasket. NOTE: Camshaft timing cover, timing chain set and gasket sold separately.

* NOTE: These assemblies require internally balanced flywheel and harmonic balancer, sold separately. Machine work is required for hydraulic roller cam use.

Part No. Description
620-5550 9.4:1.0 Short Block Assembly
620-5551 8.4:1.0 Short Block Assembly
620-5552 Assembly Labor Option for Camshaft described above