KB Hyper Performance Piston Set, KB280.020

KB Hyper Piston - Chry 450 Rod 6.768 Step Head -4.4cc 2V

.150" quench dome. Centered pin. Suggest checking quench dome with clay for clearance. Engine cannot be assembled without machining quench dome. Made from Chrysler 400 block. Use only stock rods.

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): 0cc

Compression Ratio: 72-12.3, 80-11.3, 84-10.8, 88-10.4

Top Land: 0.275

Pin Type: Press or Floating

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

Pin Configuration: Centered

Oversized: Yes

Oversize: .020"

Alloy: 390

Stroke (mm): 95.3

Bore Diameter IN: 4.342

Rod (in): 6.768

Compression Height MM: 33.7

Compression Height IN: 1.327

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

Bore Diameter MM: 110.3

Pin Number: 1.0945x300K

Make for Engine Family: Mopar

Pin Diameter (mm): 27.8

OE Deck Height: 9.98

Year Range: -

Exhaust Valve Depth/Diameter: .264/2.360

Base Number: KB280

Crown Type: STEP HEAD 2V

Pin Diameter (in): 1.094

Piston Material: Cast 390 Hypereutectic Alloy

Lock: PRF116-3

Rod (mm): 171.9072

Intake Valve Depth/Diameter: .264/2.360

Stroke (in): 3.75