KB Hyper Performance Piston Set, KB251.040

KB Hyper Piston - Chry 450 Rod 6.358 Step Head -4.4cc 2V

Centered pin. Suggest checking quench dome with clay for clearance. Closed chamber heads require the quench dome to be machined down. Made from Chrysler 400 block. Use only stock rods. Comp. ratio will change with quench dome machining.

Sold As: Piston Set

Engine Manufacturer: Chrysler

Engine Family: Mopar Big Block B

Engine Displacement (Liters): 7.4

Engine Displacement (cubic inches): 450

Bore Size (in): 4.342

Bore Size (mm): 110.3

Piston Head Type: Dome

Crown (cc): -4.4cc

Compression Ratio: 72-12.9, 80-11.8, 84-11.3, 88-10.9

Top Land: 0.221

Pin Type: Press or Floating

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

Rod (in): 6.358

Year Range: -

Pin Configuration: Centered

Alloy: 390

OE Deck Height: 9.98

Compression Height IN: 1.722

Bore Diameter IN: 4.342

Bore Diameter MM: 110.3

Intake Valve Depth/Diameter: .264/2.360

Base Number: KB251

Compression Height MM: 43.7

Exhaust Valve Depth/Diameter: .264/2.360

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

Stroke (in): 3.75

Pin Diameter (mm): 27.8

Pin Diameter (in): 1.094

Oversize: .040"

Lock: PRF116-3

Rod (mm): 161.4932

Piston Material: Cast 390 Hypereutectic Alloy

Pin Number: 1.094x300K

Crown Type: .260" STEP HEAD 2V

Stroke (mm): 95.3

Make for Engine Family: Mopar

Oversized: Yes