Plymouth Gran Fury Police Car with Tunnel Ram Intake – Great V8 Sound!

This Plymouth Gran Fury pairs a factory 440 cubic inch police interceptor engine with a custom tunnel ram intake punching through the hood. Factory police 440s were built for torque and durability rather than outright speed, a very different mission than this build now serves. Here is what made the real police package so trusted before anyone touched it.

Plymouth Gran Fury Police Interceptor with huge Tunnel Ram Intake sticking out of the hood. This cop car makes pretty damn cool V8 sound from its 440 cid 7.2L engine, enjoy!

A tunnel ram intake sticking straight through the hood is not something Plymouth ever bolted onto a police interceptor at the factory, which is exactly what makes this Gran Fury such an unusual sight. Underneath the custom induction setup sits the 440 cubic inch big block that actually did patrol American streets in factory police trim for years, a genuinely strong engine even without a hood full of carburetor showing through. Somewhere between the factory spec sheet and this particular build, a fairly ordinary cop car became a full-blown street machine. What the factory 440 actually delivered before anyone touched it says a lot about why police departments trusted it in the first place.

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A Factory Interceptor Turned Street Show Car

The Gran Fury nameplate carried Plymouth full-size police interceptor duty forward from the earlier Fury lineup, and factory-spec 440 cubic inch V8 police packages of this era were rated at around 280 horsepower and 380 lb-ft of torque, paired almost exclusively with a 3-speed Torqueflite automatic built to handle the abuse of continuous patrol duty.

What the Real Police 440 Delivered Before Any of This

That kind of torque made the 440 a favorite for law enforcement fleets well into the early 1980s, valued less for outright speed and more for the durability and low-end pull needed to run all shift long without complaint, which is a very different design brief than the tunnel ram setup on this particular car suggests.

The tunnel ram poking through the hood here is a custom addition rather than anything Plymouth offered from the factory, and it trades some of that low-rpm durability for a dramatic top-end rush and a V8 sound that is impossible to mistake for a stock interceptor idling at a stoplight.

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