KB Hyper Performance Piston Set, KB371.030

KB Hyper Piston - Pont 455 Rod 6.630 Step Dish +30.5cc 2V

Centered pin. Designed for use with 14 degree head, 1967 and later. Piston is.025 below factory deck. Check small end of rod to piston before assembly /.045" clearance per side minimum.

Sold As: Piston Set

Engine Manufacturer: Pontiac

Engine Family: Pontiac V8

Engine Displacement (Liters): 7.5

Engine Displacement (cubic inches): 455

Bore Size (in): 4.15

Bore Size (mm): 105.4

Piston Head Type: Dish

Crown (cc): +30.5cc

Compression Ratio: 71-9.6, 87-8.5, 96-.8.1, 111-7.3

Top Land: 0.275

Pin Type: Press or Floating

Exhaust Valve Depth/Diameter: .248/2.210

Ring Pack: 5/64, 1/16, 3/16

Lock: PRH107-3

Intake Valve Depth/Diameter: .248/2.210

Base Number: KB371

Oversize: .030"

Stroke (in): 4.21

Pin Number: 0980x300K

Compression Height MM: 37.8

Compression Height IN: 1.49

Bore Diameter IN: 4.15

Bore Diameter MM: 105.4

Pin Diameter (mm): 24.9

Rod (mm): 168.402

Piston Material: Cast 390 Hypereutectic Alloy

Rod (in): 6.63

Year To: 1976

Alloy: 390

Oversizes: .030, .040, .060

Pin Configuration: Centered

Crown Type: STEP DISH 2V

OE Deck Height: 10.25

Stroke (mm): 106.9

Make for Engine Family: General Motors

Year Range: 1970-1976

Pin Diameter (in): 0.98

Oversized: Yes

Year From: 1970