KB Hyper Performance Piston Set, KB236.040

KB Hyper Piston - Chry 440, Rod 6.768, Step Head 1.+8cc 2V

Centered pin. Compression height of this piston is 2.057". .075" quench dome. Suggest checking quench dome with clay for clearance. Closed chamber heads require the quench dome to be machined down.

Sold As: Piston Set

Engine Manufacturer: Chrysler

Engine Family: Mopar Big Block RB

Engine Displacement (Liters): 7.2

Engine Displacement (cubic inches): 440

Bore Size (in): 4.32

Bore Size (mm): 109.7

Piston Head Type: Dome

Crown (cc): +6cc

Compression Ratio: 72-11.5, 80-10.7, 84-10.3, 88-9.9

Top Land: 0.22

Pin Type: Press or Floating

Pin Configuration: Centered

Compression Height IN: 2.057

Year To: 1979

Ring Pack: 5/64, 5/64, 3/16

Oversizes: STD, .020, .030, .040, .060

Rod (mm): 171.9072

Bore Diameter MM: 109.7

Bore Diameter IN: 4.32

Stroke (mm): 95.3

Stroke (in): 3.75

Compression Height MM: 52.2

Alloy: 390

Year From: 1966

Pin Number: 1.094x300K

Exhaust Valve Depth/Diameter: .264/2.360

Intake Valve Depth/Diameter: .264/2.360

Lock: PRF116-3

Crown Type: STEP HEAD 2V

Year Range: 1966-1979

Base Number: KB236

Rod (in): 6.768

Piston Material: Cast 390 Hypereutectic Alloy

Pin Diameter (in): 1.094

Pin Diameter (mm): 27.8

Make for Engine Family: Mopar

OE Deck Height: 10.725

Oversize: .040"

Oversized: Yes