KB Hyper Performance Piston Kit, KB371KTM.030

1 Set KB371.030/1 Set 4151FM8.030

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: Kit with Rings

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

Base Number: KB371

Compression Height MM: 37.8

Bore Diameter MM: 105.4

Bore Diameter IN: 4.15

Compression Height IN: 1.49

Oversized: Yes

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

Stroke (mm): 106.9

Year From: 1970

Pin Number: 0980x300K

Pin Configuration: Centered

Crown Type: STEP DISH 2V

Pin Diameter (in): 0.98

Stroke (in): 4.21

Lock: PRH107-3

Exhaust Valve Depth/Diameter: .248/2.210

Intake Valve Depth/Diameter: .248/2.210

Oversizes: .030, .040, .060

Make for Engine Family: General Motors

Piston Material: Cast 390 Hypereutectic Alloy

Oversize: .030"

Year To: 1976

Rod (mm): 168.402

Year Range: 1970-1976

OE Deck Height: 10.25

Grade Type: Performance

Rod (in): 6.63

Alloy: 390

Pin Diameter (mm): 24.9