KB Hypereutectic Pistons · SKB257.STD
Part #: SKB257.STD
UPC: 800745060198
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Description: KB Hyper Single Piston - Chevy 454 Rod 6.135 OC Hollow Dome -26cc 1V; 4.250" STD, .250" OC HD -26cc w/1 V,Top Ring:5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Comp Ratios:10.2/119cc,Gram weight 696/158, 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: 4250AM8 or 4250AD8
- Stroke: 4.000
- Comp HT: 1.645
- O.E Deck HT: 9.800
- Lock Ring:PRG110-3
- .025" Open Chamber Head Hollow Dome -26cc w/1 Valve Relief
- Fits Edelbrock 118cc head
- Centered Pin
- Pin Size:0.990/ Pin# 0990X300K
Specifications
- GTIN
- 00800745060198
- Life cycle
- Available to Order
- AAM brand code
- KBP
- Warehouse brand code
- BJDT
- AAIA brand code
- BJDT
Attributes
- Alloy
- 390
- Base Number
- KB257
- Bore (in)
- 4.25
- Bore (mm)
- 108.0
- Compression Ratio
- 119-10.2
- Crown (cc)
- -26cc
- Crown Type
- .250" OC HOLLOW DOME 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
- 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
- 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.
Resources
KB Hypereutectic Pistons SKB257.STD
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