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No CAT 3406C engine under this hood, just a stock ’77 Ford 400M dressed with an Edelbrock intake and 600-cfm carb breathing out through a set of cast-iron exhaust manifolds. Justin hasn’t tried to squeeze earthmoving power from the old 400. Instead he’s babied it with lots of preventive maintenance and spoiled it with a K&N filter and a Pertronix electronic ignition conversion. The engine has rewarded Justin with consistent power and smooth operation, but just in case it goes belly-up, the coil spring strut tower that spans the engine compartment can be removed from its urethane mounts with four bolts to facilitate an easy engine swap.

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