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KB Hypereutectic Pistons · SKB236.020

KB Hypereutectic Pistons SKB236.020

Part #: SKB236.020
UPC: 800745190871

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Description: KB Hyper Single Piston - Chrysler 440 V8 +1.8cc Step Head 6.768" Rod; 4.320+.020", Step Dish 6cc w/2 V,Top Ring:5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Comp Ratios: 11.5/72cc,10.7/80cc,10.3/84cc,9.9/88cc,Gram weight 805/190, 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+.020"
  • Pin Size:1.0940/ Pin# 1.0944X300K
  • Ring Set: 4320AM8
  • Stroke: 3.750
  • Comp HT: 2.057
  • O.E Deck HT: 10.725
  • Lock Ring:PRF116-3
  • Step Dish 6cc w/2 Valve Reliefs
  • .075" quench dome center piston
  • Suggested checking quench dome with clay for clearance
  • Closed Chamber heads require the quench dome to be machined down

Specifications

GTIN
00800745190871
Life cycle
Available to Order
AAM brand code
KBP
Warehouse brand code
BJDT
AAIA brand code
BJDT

Attributes

Alloy
390
Base Number
KB236
Bore (in)
4.32
Bore (mm)
109.7
Compression Ratio
72-11.5, 80-10.7, 84-10.3, 88-9.9
Crown (cc)
+6cc
Crown Type
STEP HEAD 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
.020
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
.220
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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