MMR 5.4 1500 Race MOD Forged Shortblock -Lightning/GT500/F150

From the World 5.4 record holders comes one of our most popular shortblocks for F150/F250 and GT500 Customers. Handles Up to 1500RWHP!



*New Cast Iron 5.4 Block , torque plate bored and honed

*New 4340 Forged Crankshaft, includes additional heat treat w/micro polished journals at no extra charge

*New 4340 6.658 Manley Pro-series Billet Rods with ARP 2000 bolts ( These US made rods are shotpeened, magnafluxed and weight matched to bring you the finest I-beam rod available for your 5.4)

*New 2618 Alloy Forged Manley Pistons with Chromoly Pins (High or low compression) - simply the strongest piston available

*Total Seal file fit rings (precision file fit to your application, nitrous, blower, turbo or N/A)

*Clevite Competition series heat treated Rod and Main bearings

*ARP main stud kit for maintaining correct cap location under the hardest of loads

*Complete Pro Assembly and Balancing for the smoothest, highest revving shortblock available, Pre-Lubricated with MMR 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.

  • Model: 501500
  • Manufactured by: MMR


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