KB Hypereutectic Pistons · SKB251L.020
Part #: SKB251L.020
UPC: 800745059628
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Description: KB Hyper Left Single Piston - Chry 450 Rod 6.358 Step Head -4.4cc 2V; 4.342+.020", .260" Step Head -4cc w/2 V,Top Ring:5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Comp Ratios: 12.9/72cc,11.8/80cc,11.3/84cc,10.9/88cc,Gram weight 714/190, INT-Valve Depth/DIA .264-2.360", EX-Relief Depth/Dia .264-2.360"
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: 4.342+.020"
- Use only stock rods
- Comp ration will change with quench dome machining
- Pin Size:1.0940/ Pin# 1.094X300K
- Ring Set: 4342AM8
- Stroke: 3.750
- Comp HT: 1.722
- O.E Deck HT: 9.980
- Lock Ring:PRF116-3
- .260" Step Head -4cc w/2 Valve Reliefs
- Centered Pin
- Suggest checking quench dome with clay for clearance,Closded chamber heads require the quench dome to be machined down
- Made fromm Chrysler 400 block
Specifications
- GTIN
- 00800745059628
- Life cycle
- Available to Order
- AAM brand code
- KBP
- Warehouse brand code
- BJDT
- AAIA brand code
- BJDT
Attributes
- Alloy
- 390
- Base Number
- KB251
- Bore (in)
- 4.342
- Bore (mm)
- 110.3
- Compression Ratio
- 72-12.9, 80-11.8, 84-11.3, 88-10.9
- Crown (cc)
- -4.4cc
- Crown Type
- .260" STEP HEAD 2V
- Eng. Disp Liters
- 7.4
- Eng. Disp. In.
- 450
- Engine Family
- Mopar Big Block B
- Engine Manufacturer
- Chrysler
- Exhaust Valve Depth/diameter
- .264/2.360
- Intake Valve Depth/diameter
- .264/2.360
- Lock
- PRF116-3
- Make For Engine Family
- Mopar
- Oe Deck Height
- 9.98
- Oversize
- .020
- Oversizes
- STD .020 .030 .040 .060
- Pin Configuration
- Centered
- Pin Diameter (in)
- 1.094
- Pin Diameter (mm)
- 27.8
- Pin Number
- 1.094x300K
- Pin Type
- Floating
- Ring Pack
- 5/64, 5/64, 3/16
- Rod (in)
- 6.358
- Rod (mm)
- 161.4932
- Sold As
- SINGLE
- Stroke (in)
- 3.75
- Stroke (mm)
- 95.3
- Top Land
- .221
- Year Range
- -
Fitment status
This product is universal and will fit your application.
Resources
KB Hypereutectic Pistons SKB251L.020
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