KB Hyper Performance Piston Set, KB251.060

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

Alloy: 390

Year Range: -

Pin Configuration: Centered

Intake Valve Depth/Diameter: .264/2.360

Oversized: Yes

Oversize: .060"

Pin Diameter (mm): 27.8

Stroke (mm): 95.3

Bore Diameter MM: 110.3

Bore Diameter IN: 4.342

Compression Height MM: 43.7

Compression Height IN: 1.722

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

Crown Type: .260" STEP HEAD 2V

Rod (in): 6.358

Exhaust Valve Depth/Diameter: .264/2.360

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

Base Number: KB251

Pin Number: 1.094x300K

Pin Diameter (in): 1.094

OE Deck Height: 9.98

Rod (mm): 161.4932

Lock: PRF116-3

Make for Engine Family: Mopar

Stroke (in): 3.75

Piston Material: Cast 390 Hypereutectic Alloy