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Burnt junkyard 6.4L Gen III HEMI engine undergoes restoration.

Engine Power

Old School and New School Hemi

Ford's high-revving modern engine gets some racy parts, then it is put to the test in the dyno cell.

Coyote Power

The six-cylinder Ford's dyno numbers keep climbing as the team gives it major cam, piston, and cylinder head upgrades.

Ford's Big Buzzin' Half Dozen

Simple Postal Jeep engine refresh becomes complex as team encounters unexpected issues.

AMC-Powered Postal Jeep

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Pro engine tips on assembling and tuning everything from street engines to full-race motors.

S8 E1 | AMC-Powered Postal Jeep

E12 | Old School and New School Hemi

E10 | Coyote Power

E3 | Ford's Big Buzzin' Half Dozen

E1 | AMC-Powered Postal Jeep