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May 26, 2026ATK High Performance Chrysler 5.7 Gen III Hemi 400 HP Long Block Crate Engines HP103T
$3,032.00
Crate Engines, Chrysler 5.7L Gen III Hemi 400 HP Long Block, 5.7L/345, Assembled, Aluminum Heads, without MDS, Chrysler, Dodge, Jeep, 5.7L, Each
Overview
ATK High Performance Chrysler 5.7 Gen III Hemi 400 HP Long Block Crate Engines
ATK High Performance Chrysler 5.7 Gen III Hemi 400 hp long block crate engines were built in a team effort with Comp Cams. Utilizing ATK remanufactured GEN III 5.7L Hemi engines; they upgraded the camshaft, springs, and pushrods to produce reliable 400+ hp.
Features typically include:
* Seasoned OE Gen III Hemi block
* OE reground crankshaft
* OE reconditioned connecting rods
* Hypereutectic pistons
* Chromoly piston rings
* Hydraulic roller camshaft
* Aluminum cylinder heads
* Billet aluminum full roller rocker arms






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