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KB Hypereutectic Pistons · SKB237R.030

KB Hypereutectic Pistons SKB237R.030

Part #: SKB237R.030
UPC: 800745058669

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Description: KB Hyper Right Single Piston - Chry 440 Rod 6.768 Step Head 1.+8cc 2V; 4.320+.030", Flat Top 9cc w/2 V,Top Ring:5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Comp Ratios: 11.2/72cc,10.3/80cc,10.0/84cc,9.6/88cc,Gram weight 774/190, INT-Valve Depth/DIA .264-2.360", EX-Relief Depth/Dia .264-2.360"

Description:

Description

KB Series Hypereutectic 390 Alloy with 16% Silicon is a High Performance Piston for Marine, Drag, Circle Track and Towng. Fully machined head and valve reliefs. Mini Grooves to reduce scuffing if overheated. Accumulator Grove aids with compression ring seal. Triple Spiral Lock Rings. Machined in Oil Returns. CNC machined pin bores produce straight and accurately sized bores. Diamond finished skirts.

Features & benefits

  • Bore: 4.320+.030"
  • Stroke: 3.750
  • Comp HT: 2.057
  • O.E Deck HT: 10.725
  • Lock Ring:PRF116-3
  • Flat Top 9cc w/2 Valve Reliefs
  • Centered Pin
  • Pin Size:1.0940/ Pin# 1.0944X300K
  • Ring Set: 4320AM8

Specifications

GTIN
00800745058669
Life cycle
Available to Order
AAM brand code
KBP
Warehouse brand code
BJDT
AAIA brand code
BJDT

Attributes

Alloy
390
Base Number
KB237
Bore (in)
4.32
Bore (mm)
109.7
Compression Ratio
72-11.2, 80-10.3, 84-10.0, 88-9.6
Crown (cc)
+9cc
Crown Type
FLAT TOP 2V
Eng. Disp Liters
7.2
Eng. Disp. In.
440
Engine Family
Mopar Big Block RB
Engine Manufacturer
Chrysler
Exhaust Valve Depth/diameter
.264/2.360
Intake Valve Depth/diameter
.264/2.360
Lock
PRF116-3
Make For Engine Family
Mopar
Oe Deck Height
10.725
Oversize
.030
Oversizes
STD .020 .030 .040 .060
Pin Configuration
Centered
Pin Diameter (in)
1.094
Pin Diameter (mm)
27.8
Pin Number
1.094x300K
Pin Type
Floating
Ring Pack
5/64, 5/64, 3/16
Rod (in)
6.768
Rod (mm)
171.9072
Sold As
SINGLE
Stroke (in)
3.75
Stroke (mm)
95.3
Top Land
.275
Year From
1966
Year Range
1966-1979
Year To
1979

Fitment status

This product is universal and will fit your application.

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