New at Summit Racing: Trick Flow PowerPort 270 Heads for Big Block Chrysler

Trick Flow upped the ante for big block Mopar performance with the PowerPort® 270 Cylinder Heads. Based on the popular PowerPort 240 heads, these new heads feature raised 270cc Max Wedge-style intake runners that provide a straighter path to the valve for improved airflow.

What is the extra airflow worth? A 505 cubic inch big block with PowerPort 270s,  10.15 compression, Track Max® hydraulic roller cam, and a QuickFuel 950 cfm carburetor on a ported Track Heat® intake made 687 horsepower and 680 lbs.-ft. of torque. That torque curve never dipped below 600 lbs.-ft. up to peak torque at 5,800 RPM.

The PowerPort 270 heads also feature:
• Premium grade A356-T61 aluminum
• 78cc CNC-profiled combustion chambers
• High resolution CNC Competition Ported runner surface finish for proper dimensional accuracy and balanced flow from runner-to-runner
• Relocated rocker shaft oil holes for the shafts help optimize runner shape to increase flow velocity and add much needed strength to the shaft bosses
• Clearance for 3/8” pushrods
• Ductile iron valve seats with multi-angle machining on precision Serdi® equipment
• Bronze alloy valve guides

Assembled heads come with 11/32" stem stainless steel valves, Trick Flow by
PAC Racing valve springs, chromoly or titanium retainers, and 7° or 10° steel valve stem locks. Here are the valve spring options:
• 1.460" dual valve springs with chromoly retainers
• 1.550" dual valve springs with chromoly or titanium retainers
• 1.560" dual valve springs with titanium retainers

Like their PowerPort 240 cousins, the PowerPort 270 cylinder heads are designed to use factory-style big block Mopar pistons, roller rocker arms, and headers. Trick Flow recommends using a Max Wedge-style intake manifold for best performance. The heads are available fully assembled or as bare castings. Sold individually.

SEE TRICK FLOW’S POWERPORT 270 CYLINDER HEADS FOR BIG CHRYSLER AT SUMMIT RACING