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KB Hypereutectic Pistons · SKB284.STD

KB Hypereutectic Pistons SKB284.STD

Part #: SKB284.STD
UPC: 800745063144

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Description: KB Hyper Single Piston - Chevy 489 Rod 6.385 Flat Top +3cc 1V; 4.250" STD, Flat Top 3cc w/1 Valve Relief,Top Ring:1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Comp Ratios:10.2/96.5cc,9.5/105cc,9.3/108cc,8.6/119cc,Gram weight 556/158, 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" STD
  • Ring Set: 4000BD8 or 4000BMB
  • Stroke: 4.250
  • Comp HT: 1.270
  • O.E Deck HT: 9.800
  • Lock Ring:PRG110-3
  • Flat Top 3cc w/1 Valve Relief
  • Centered Pin, Spacer ring included, Made from Chevrolet 454 BB
  • Northstar Rod
  • Pin Size:0.9272/ Pin# 0927X216K

Specifications

GTIN
00800745063144
Life cycle
Available to Order
AAM brand code
KBP
Warehouse brand code
BJDT
AAIA brand code
BJDT

Attributes

Alloy
390
Base Number
KB284
Bore (in)
4.25
Bore (mm)
108.0
Compression Ratio
96.5-10.0, 105-9.5, 108-9.3, 119-8.6
Crown (cc)
+3cc
Crown Type
FLAT TOP 1V
Eng. Disp Liters
8.0
Eng. Disp. In.
489
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
STD
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
1/16, 1/16, 3/16
Rod (in)
6.385
Rod (mm)
162.179
Sold As
SINGLE
Stroke (in)
4.25
Stroke (mm)
108.0
Top Land
.312
Year Range
-

Fitment status

This product is universal and will fit your application.