Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These heads give great torque and horsepower up to 6500 rpm.

• Designed for non-emission 1968-73 340 Chryslers, RPM Chrysler 340 heads have chambers machined .060" for clearance with early high-compression engines.
• The special valvetrain in the 1970 340 T/A is not compatible with these heads.

Combustion chamber volume: 65cc
Intake runner volume: 171cc
Exhaust runner volume: 77cc
Intake valve diameter: 2.02"
Exhaust valve diameter: 1.60"
Valve stem diameter: 11/32"
Valve guides: Manganese bronze
Deck thickness: 5/8"
Valve spring diameter: 1.46"
Valve spring maximum lift: .575"
Rocker stud: N/A
Guide plate: N/A
Pushrod diameter: 5/16"
Valve Angle: 18°
Exhaust port location: Stock
Spark plug fitment: 14mm x 3/4" reach, gasket seat
Made In: USA