This part ships for FREE via UPS Truck Freight shipping!
Stronger Design For High HP Applications
4.6 Main Size
8.937" Deck Height
3.700" Cylinder Bores
4 Bolt Mains
What's in the Box
(1) 5.0L Modular Boss Block
The Boss 5.0 block is a 4.6L deck height, 94mm cylinder bore cast iron block. The block uses a proprietary iron mix to yield the strongest possible casting strength with the least porosity and greatest consistency.
NOTE: The Boss 5.0L modular block does not have a finish milled head deck surface and the cylinder bores are rough honed.
Siamese 94mm bore
17mm main web minimal thickness
4 Bolt main with interference fit nodular iron machined caps
Increased main web window size for improved crankcase breathing
Head gaskets for 3V applications use M-6067-3V50 for all others contact Cometic® Gasket
For installation in 2005-2010 Mustangs use engine mount adapter M-6031-BOSS50
Weighs approximately 165 lbs
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