From the World 5.4 record holders comes one of our most popular shortblocks for F150/F250 and GT500 Customers. Handles Up to 1000RWHP!
*NEW Cast Iron 5.4 Block , torque plate bored and honed
*New Forged Crankshaft w/micro polished journals at no extra charge -the strongest 5.4 crank available!
*New MANLEY 4340 6.658 H-beam Rods with ARP bolts
*New Forged Manley pistons with Chromoly Pins
*Total Seal file fit rings (precision file fit to your application, nitrous, blower, turbo or N/A)
*Clevite Performance Rod and Main bearings
*Complete Pro Assembly and Balancing for the smoothest, highest revving shortblock available, Pre-Lubricated with Mod Lube Assembly Lube and spin tested.
*Lastly 2 technicians sign off on your new engine prior to packaging and crating.
*6 Month WARRANTY *Due to the custom nature of MMR shortblocks ALL customers paying with a credit card will be billed when the order is placed (prior to engine assembly and shipping), All MMR shortblocks are non-refundable regardless if the item has shipped or not.