(special Order No Cancel No Return) Just like the fully built up engines, Aluminator Short Blocks are hand assembled and use Manley® connecting rods with ARP® rod bolts and Mahle® forged pistons.  Two versions are available – 9.5: and 12.0:1 compression ratio. These Aluminator Short Blocks serve as a strong foundation for the enthusiast that wants to spec and finish a Coyote build to his or her particular application and needs. Ford Performance Engineers have taken care of the toughest part of building a new engine by designing a strong and durable Short Block that offers a wide range of power possibilities.  And every Ford Performance Aluminator Short Block is precision internal balanced and hand assembled in the U.S. with performance clearances. Ford Performance offers a number of components to finish the build. Specs: Aluminator Short Block M-6009-A50SCB   5.0L – 302 cubic inches 9.5:1 compression ratio (nominal) For 12.0:1 compression ratio version see-M-6009-A50NAB  Mahle® hard anodized forged pistons with Grafal® low friction coating Manley® H-beam connecting rods with ARP® 2000 bolts 2018 (Gen 3) Production aluminum cylinder block features cross-bolted main bearing caps and thick main bearing bulkheads for bottom-end strength Forged steel crankshaft Accepts Gen 1, 2, 3 or GT350 cylinder heads with corresponding generation head gasket Assembled and ready for your heads, cam, timing set, and oil system Oil pump, pickup and oil pan not included M-6675-M52 oil pan/pump or M-6675-M52S oil pan/pump recommended   Photo and specs may vary