Made of 3/4" Billet 6061-T6 aluminum, the D.S.S. Main Support System is a very cost effective way to add strength to a production block. Easily add strength to your production block Eventually the main web cracks, leading to a loss in oil pressure and possibly TOTAL DESTRUCTION of the block and internal components. This movement is transferred to the ends of the main cap fasteners, causing the threads to become fatigued. Under heavy loads, the cpas will shift or 'walk' from side to side. The reciprocating force can overwhelm the main bearing caps and the fasteners that hold them in place. WHY ARE MAIN SUPPORT SYSTEMS SO IMPORTANT?Īdditional stresses generated by running higher RPM or using power adders are transferred directly through the pistons, rods, and crankshaft to the block's main webbing. ![]() This system has been Race proven in numerous 650+ HP production blocks. ![]() Main Support System adds an additional 3/4" thick main web to support the main and dampen the harmonics that crack blocks. The images below are examples of what main cap walk can do if it is not controlled:Ĭracking in the main webbing in a production block is common on engines without an Aluminum Main Support to dampen the harmonics. Racing Main Support System dampens the harmonics that make main caps walk.
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