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KB Hypereutectic Pistons · SKB373.STD

Part #: SKB373.STD
UPC: 800745191953

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Description: KB Hyper Single Piston - Chry 360 Rod 6.123 Quench Head +2.8cc 2V; 4.000" STD, Quench Head 2.8cc w/2 V,Top Ring:5/64", 2nd Ring: 1/16", Oil Ring: 3/16", Comp Ratios:11.2/62cc,11.0/64cc,10.5/68cc,10.0/72cc,Gram weight 522/132, INT-Valve Depth/DIA .286-2.200", EX-Relief Depth/Dia .286-2.200"

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: 4.000" STD
  • Machining required to achieve optimum quench
  • Will NOT work with Magnum or Edelbrock closed chamber heads
  • Pin Size:0.9842/ Pin#0984X300K
  • Ring Set: 4000AM8
  • Stroke: 3.580
  • Comp HT: 1.675
  • O.E Deck HT: 9.599
  • Lock Ring:PRH107-3
  • Quench Head 2.8cc w/2 Valve Reliefs
  • Centered Pin
  • Piston may protrude on 1992 & up Magnum truck blocks
  • Quench dome elevated .085"

Specifications

GTIN
00800745191953
Life cycle
Available to Order
AAM brand code
KBP
Warehouse brand code
BJDT
AAIA brand code
BJDT

Attributes

Alloy
390
Base Number
KB373
Bore (in)
4
Bore (mm)
101.6
Compression Ratio
62-11.2, 64-11.0, 68-10.5, 72-10.0
Crown (cc)
+2.8cc
Crown Type
QUENCH HEAD 2V
Eng. Disp Liters
5.9
Eng. Disp. In.
360
Engine Family
Mopar Small Block LA
Engine Manufacturer
Chrysler
Exhaust Valve Depth/diameter
.286/2.200
Intake Valve Depth/diameter
.286/2.200
Lock
PRH107-3
Make For Engine Family
Mopar
Oe Deck Height
9.599
Oversize
STD
Oversizes
STD .020 .030 .040 .060
Pin Configuration
Centered
Pin Diameter (in)
.984
Pin Diameter (mm)
25.0
Pin Number
0984x300K
Pin Type
Floating
Ring Pack
5/64, 5/64, 3/16
Rod (in)
6.123
Rod (mm)
155.5242
Sold As
SINGLE
Stroke (in)
3.58
Stroke (mm)
90.9
Top Land
.275
Year From
1958
Year Range
1958-2009
Year To
2009

Fitment status

This product is universal and will fit your application.