KB Hyper Performance Piston Set, KB251.020

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

Stroke (mm): 95.3

Crown Type: .260" STEP HEAD 2V

Pin Configuration: Centered

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

Pin Diameter (mm): 27.8

Compression Height IN: 1.722

Alloy: 390

Rod (in): 6.358

Compression Height MM: 43.7

Bore Diameter IN: 4.342

Year Range: -

Bore Diameter MM: 110.3

Stroke (in): 3.75

Oversized: Yes

Intake Valve Depth/Diameter: .264/2.360

Exhaust Valve Depth/Diameter: .264/2.360

Oversize: .020"

Lock: PRF116-3

Pin Number: 1.094x300K

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

Pin Diameter (in): 1.094

Rod (mm): 161.4932

Make for Engine Family: Mopar

OE Deck Height: 9.98

Base Number: KB251

Piston Material: Cast 390 Hypereutectic Alloy