Popular demand is a large indicator of the direction today’s performance manufacturers take, and noted induction manufacturer Trick Flow Specialties is no exception. The company has put together a new induction system for the vaunted big-block Mopar engine platform, largely based on customer requests.

“The cylinder heads come fully CNC-ported with our street porting option. They use stock-style rocker arms, and the intake and exhaust ports are in stock locations,” says Trick Flow’s R&D/Engineering Supervisor Cory Roth.

The PowerPort 240 cylinder heads feature – you guessed it – 240 cc intake ports and are available in four different versions, centered around valve springs appropriate for the type of camshaft the customer will be running – solid roller, hydraulic roller, hydraulic flat tappet, and solid flat tappet.

The cylinder heads are cast from 6061-T6 premium aluminum and have been optimized over the factory castings by building up the rocker shaft and runner areas. The oil holes for the shafts have been moved to improve oiling, and airflow has been balanced runner-to-runner for consistent power production. 11/32-inch stainless steel valves, Trick Flow by PAC Racing valvesprings are included, and there is also a titanium retainer option for improved RPM potential.

In fact, Trick Flow has tested the cylinder heads on an in-house dyno mule engine built with 10.5:1 compression, a mild hydraulic roller camshaft, and the matching Track Heat single-plane intake manifold. With these pieces on board, the engine twisted the dyno’s needle to 600 horsepower.

As this cylinder head is designed for stock cubic-inch engines, Roth notes that there will be a larger version of the cylinder heads forthcoming, designed to be used on a stroked-and-poked engine with a larger 270 or larger cc intake runner. Depending upon demand, he is also considering exploring the option for a cylinder head with relocated pushrod holes and offset rocker arms.