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This 1/2 thick billet aluminum CNC machined plate replaces the factory rear main seal housing. Its thick CNC construction helps support the rear of the block and provide a stable housing for the rear main seal to help prevent leaks and increase block stability. The MMR cover is O ringed to eliminate messy silicone and downtime from scraping old silicone every time the engine is torn down. Includes black oxide coated Grade 8 hardware and MMR 1 piece rear main seal. Fits all 93-14 2V,3V and 4V 4.6 or 5.4/5.8 (does not fit 5.0 Coyote) Aluminum and Cast Iron blocks. For use with all stock and aftermarket crankshafts. A MUST FOR ANY HIGH HP BLOCK BUILD!

*New version now has updates to make this part install and seal even better than the factory part that it replaces!! Our customers spoke and we listened!

Order here: Billet Rear Main Seal Housing cover / block support 4.6 / 5.4 [400031] - $139.99 : Modular Motorsports, Home of the Worlds Fastest Modular Engines

Call 1 805 383 4130

or Visit

Modular Mustang Racing

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