SEMA 2013: Trick Flows Shows Off New LS7 and Big-block Heads


Trick Flow’s new GenX 260 square-port LS7 cylinder head.

Trick Flow Specialties is teaming with Stainless Works and Proform to offer headers and carburetors, respectively, giving the cylinder head specialist the option of offering customers ready-to-bolt-on packages.

“We now have complete top-end solutions,” says Mike Downs, general manager at Trick Flow. “Think of it as completing the air-in, air-out flow.

Trick Flow is working with Stainless Works and Proform to offer headers and carbs, respectively.

The carbs are available in a variety of sizes and applications, including full race and street performance. The headers are made from CNC mandrel-bent 304L stainless steel tubing that is fully TIG-welded to 3/8-inch laser-cut flanges. Headers are designed for late-model vehicles, including turbo applications.

On the cylinder head front, Trick Flow showed off a CNC-ported version of its top big-block Chevy offering and also introduced a GenX LS7 head.

Trick Flow’s new CNC-ported big-block head.

“Previously we had only the as-cast version of the big-block head,” explains Downs. “We felt there was a real need to compete with a CNC-ported head. It’s for bigger engines in Top Sportsman and other classes.”

Called the Powerport 365, the heads feature a high-resolution finish for maximum airflow and come fully assembled with premium valvetrain components.

For LS engines, Trick Flow if offering the GenX 260 square-port that works on LS blocks with a minimum bore of 4.100 inch. They are cast from A356-T61 aluminum and come with 70cc combustion chamber and 2.20/1.60 valves. Intake ports measure 260cc and have a flow rating of 393 cfm.

More views of the GenX 260 cylinder head.

“We also have 1-piece billet rocker stands to get the geometry correct and keep it aligned,” says Downs, noting that stock rocker arms can be used.

Finally, Trick Flow had a new intake manifold for 351W engines on display. This R-series single-plane manifold is designed for heavily modified engines operating in the 3,500 to 7,500 rpm range. It can also be modified for EFI port injection.

Two views of the new R-series intake for 351W Ford engines.

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About the author

Mike Magda

Mike Magda is a veteran automotive writer with credits in publications such as Racecar Engineering, Hot Rod, Engine Technology International, Motor Trend, Automobile, Automotive Testing Technology and Professional Motorsport World.
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