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KB Hypereutectic Pistons · SKB211.005

KB Hypereutectic Pistons SKB211.005

Part #: SKB211.005
UPC: 800745055859

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Description: KB Hyper Single Piston - Chry Hemi 426 Rod 6.860 -90cc 2V; 4.250 +.005", .615" Hemi Dome -90cc w/2V,Top Ring:5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Comp Ratios: 10.6w/168cc,10.0w/174cc,Gram weight 809/161, INT-Valve Depth/DIA Hemi 2.370", EX-Relief Depth/Dia Flat@23 deg

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 +.005"
  • Stroke: 3.750 Comp HT: 1.949
  • O.E Deck HT: 10.725
  • Lock Ring:PRH113-3
  • .615" Hemi Dome -90cc w/2 Valve Reliefs
  • Centered pin.
  • Compression ratio calculated usring gasket thickness .020 and -.041 deck clearance, gasket bore of 4.365 and unmodified block
  • Pin Size: 1.0300/ Pin# 1.031X300K
  • Ring Set: 4250AM8

Specifications

GTIN
00800745055859
Life cycle
Available to Order
AAM brand code
KBP
Warehouse brand code
BJDT
AAIA brand code
BJDT

Attributes

Alloy
390
Base Number
KB211
Bore (in)
4.25
Bore (mm)
108.0
Compression Ratio
168-10.6, 174-10.0
Crown (cc)
-90cc
Crown Type
.615" DOME HEMI 2V
Eng. Disp Liters
7.0
Eng. Disp. In.
426
Engine Family
Mopar Hemi (early)
Engine Manufacturer
Chrysler
Exhaust Valve Depth/diameter
Flat @ 23 deg
Intake Valve Depth/diameter
Hemi 2.370
Lock
PRH113-3
Make For Engine Family
Mopar
Oe Deck Height
10.725
Oversize
.005
Oversizes
STD .005 .010 .020 .030 .040 .060
Pin Configuration
Centered
Pin Diameter (in)
1.03
Pin Diameter (mm)
26.2
Pin Number
1.031x300K
Pin Type
Floating
Ring Pack
5/64, 5/64, 3/16
Rod (in)
6.86
Rod (mm)
174.244
Sold As
SINGLE
Stroke (in)
3.75
Stroke (mm)
95.3
Top Land
.437
Year From
1963
Year Range
1963-1974
Year To
1974

Fitment status

This product is universal and will fit your application.