KB Hyper Performance Piston Set, KB251.030

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

Year Range: -

Intake Valve Depth/Diameter: .264/2.360

Pin Diameter (mm): 27.8

Bore Diameter IN: 4.342

Pin Configuration: Centered

Oversize: .030"

Oversized: Yes

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

Bore Diameter MM: 110.3

Compression Height MM: 43.7

Compression Height IN: 1.722

Make for Engine Family: Mopar

Stroke (in): 3.75

Alloy: 390

Pin Number: 1.094x300K

Rod (in): 6.358

Crown Type: .260" STEP HEAD 2V

Stroke (mm): 95.3

OE Deck Height: 9.98

Pin Diameter (in): 1.094

Lock: PRF116-3

Exhaust Valve Depth/Diameter: .264/2.360

Base Number: KB251

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

Piston Material: Cast 390 Hypereutectic Alloy

Rod (mm): 161.4932