KB Hyper Performance Piston Kit, KB251KTM.030

1 Set KB251.030/1 Set 4342AM8.030

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: Kit with Rings

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

Rod (mm): 161.4932

Piston Material: Cast 390 Hypereutectic Alloy

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

Lock: PRF116-3

Pin Diameter (in): 1.094

Compression Height IN: 1.722

Stroke (mm): 95.3

Bore Diameter IN: 4.342

Bore Diameter MM: 110.3

Compression Height MM: 43.7

Pin Diameter (mm): 27.8

Stroke (in): 3.75

Year Range: -

Pin Configuration: Centered

Crown Type: .260" STEP HEAD 2V

Make for Engine Family: Mopar

Oversize: .030"

Pin Number: 1.094x300K

Intake Valve Depth/Diameter: .264/2.360

Grade Type: Performance

Alloy: 390

Base Number: KB251

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

Exhaust Valve Depth/Diameter: .264/2.360

Rod (in): 6.358

OE Deck Height: 9.98

Oversized: Yes