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KB Hypereutectic Pistons · SKB287.070

KB Hypereutectic Pistons SKB287.070

Part #: SKB287.070
UPC: 800745063588

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Description: KB Hyper Single Piston - Chevy 454 Rod 6.135 D-Cup +18cc 1V; 4.250+.070", D-Cup 18cc w/1 Valve Relief,Top Ring:5/64", 2nd Ring: 15/64", Oil Ring: 3/16", Comp Ratios:8.6/96.5cc,8.2/105cc,8.0/108cc,7.4/119cc,Gram weight 608/158, INT-Valve Depth/DIA .266-2.310", EX-Relief Depth/Dia -NA

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: 4.250+.070"
  • Stroke: 4.000
  • Comp HT: 1.645
  • O.E Deck HT: 9.800
  • Lock Ring:PRG110-3
  • D-Cup 18cc w/1 Valve Relief
  • Centered Pin
  • Pin Size:0.990/ Pin# 0990X300K
  • Ring Set: 4250AM8 or 4250AD8

Specifications

GTIN
00800745063588
Life cycle
Available to Order
AAM brand code
KBP
Warehouse brand code
BJDT
AAIA brand code
BJDT

Attributes

Alloy
390
Base Number
KB287
Bore (in)
4.25
Bore (mm)
108.0
Compression Ratio
96.5-8.6, 105-8.2, 108-8.0, 119-7.4
Crown (cc)
+18cc
Crown Type
D-CUP 1V
Eng. Disp Liters
7.4
Eng. Disp. In.
454
Engine Family
Chevrolet BB V8 Mark IV
Engine Manufacturer
Chevrolet
Intake Valve Depth/diameter
.266/2.310
Lock
PRG110-3
Make For Engine Family
General Motors
Oe Deck Height
9.8
Oversize
.070
Oversizes
STD .030 .040 .060 .070 .100
Pin Configuration
Centered
Pin Diameter (in)
.990
Pin Diameter (mm)
25.1
Pin Number
0990x300K
Pin Type
Floating
Ring Pack
5/64, 5/64, 3/16
Rod (in)
6.135
Rod (mm)
155.829
Sold As
SINGLE
Stroke (in)
4
Stroke (mm)
101.6
Top Land
.308
Year From
1970
Year Range
1970-2000
Year To
2000

Fitment status

This product is universal and will fit your application.

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