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- 1961-1979 Big Block Chrysler 361-440ci
- Port Volume: 210cc/70cc
- 75cc Combustion Chambers
- Bare Head, Sold Individually
Designed for 1961-1979 Chrysler 361-440 Wedge engines. Angled spark plugs for superior combustion.
Technical Notes:
Not Compatible with hydraulic roller camshafts. Vacuum advance distributor may not clear cylinder head. Recommended spark plugs are Champion RC12YC or equivalent 14mm x ¾" reach with flat gasket seat.Combustion Chamber Volume: 75cc Intake Runner Volume: 210cc Exhaust Runner Volume: 70cc Intake Valve Diameter: 2.14' Exhaust Valve Diameter: 1.81' Valve Stem Diameter: 11/32' Valve Guides: Manganese Bronze Deck Thickness: 5/8' Valve Spring Diameter: 1.55' Valve Spring Maximum Lift: 0.600' Rocker Stud: N/A Guideplate: N/A Pushrod Diameter: 3/8' Valve Angle: 15° Exhaust Port Location: Stock Spark Plug Fitment: 14mm x 3/4' Reach,
Gasket Seat
Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2OValve Lift .100" .200" .300" .400" .500" .600" .700" Intake 79 143 207 256 278 291 292 Exhaust 70 126 160 188 206 217 223
High-Flow Performance for Big Block Chrysler Power
Edelbrock Big Block Chrysler Performer RPM Cylinder Heads bring the brand’s long-standing cylinder head engineering and performance development to classic big block Mopar engines, offering a high-quality casting designed for enhanced airflow, improved combustion efficiency, and confident performance gains. Engineered with premium port shapes, durable materials, and manufacturing precision that supports consistent fitment and reliability, these heads help unlock increased power potential while maintaining the strength needed for street and enthusiast builds. With Edelbrock’s focus on tested performance and real-world drivability, Performer RPM heads provide a trusted foundation for builders seeking balanced power, responsive throttle feel, and durable operation.
