4.000 +.040",S.150" SD -5.5cc ASYM 2V,Top Ring:1/16", 2nd Ring: 1/16", Oil Ring: 3/16", Comp Ratios: 12.9w/58cc,12.2/62cc,11.9w/64cc,10.2w/76cc,Gram weight 566/107, INT-Valve Depth/DIA .272-2.140", EX-Relief Depth/Dia .1272--1.720"
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.
  • Bore: 4.000 +.040"
  • Ring Set: 4000BD8 or 4000BM8
  • 1 set of 8 KB209.040 Pistons
  • Stroke: 3.480
  • Comp HT: 1.561
  • O.E Deck HT: 9.025
  • Lock Ring:PRJ100-3
  • Flat Top 6.5cc ASYM w/2 Valve Reliefs
  • Centered Pin
  • Spacer ring included
  • Pin Size: 0.927/ Pin# 0927X216K
Attributes
Country of Origin (Primary) MX
GTIN 00800745197696
Hazardous Material Code N
Life Cycle Status Code Available to Order

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KB Hypereutectic Pistons KB6209.040 KB209.040 KB PISTON

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