4.000 +.060", D-Cup 13cc w/2V,Top Ring:5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Comp Ratios: 9.6w/58cc,9.1/62cc,9.0w/64cc,8.0w/76cc,Gram weight 627/145, INT-Valve Depth/DIA .280-2.168", EX-Relief Depth/Dia .280-2.168"
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+.060"
  • Ring Set: 4000AM8
  • Stroke: 3.250
  • Comp HT: 1.678
  • O.E Deck HT: 9.025
  • Lock Ring:PRJ100-3
  • D-Cup 13cc w/2 Valve Reliefs
  • 2 Symmetrical valve reliefs
  • Centered Pin
  • Pin Size: 0.9272/ Pin# 0927X300K
Attributes
Alloy 390
Base Number KB158
Bore (in) 4
Bore (mm) 101.6
Compression Ratio 58-9.6, 62-9.1, 64-9.0, 76-8.0
Country of Origin (Primary) MX
Crown (cc) +13cc
Crown Type D-CUP 2V
Eng. Disp Liters 5.4
Eng. Disp. In. 327
Engine Family Chevrolet SB V8 Gen I
Engine Manufacturer Chevrolet
Exhaust Valve Depth/diameter .280/2.168
GTIN 00800745049148
Hazardous Material Code N
Intake Valve Depth/diameter .280/2.168
Life Cycle Status Code Available to Order
Lock PRJ100-3
Make For Engine Family General Motors
Oe Deck Height 9.025
Oversize .060
Oversizes STD .020 .030 .040 .060
Pin Configuration Centered
Pin Diameter (in) .927
Pin Diameter (mm) 23.5
Pin Number 0927X300K
Pin Type Press or Floating
Ring Pack 5/64, 5/64, 3/16
Rod (in) 5.7
Rod (mm) 144.78
Sold as PISTON SET
Stroke (in) 3.25
Stroke (mm) 82.6
Top Land .275
Year From 1962
Year Range 1962-1969
Year To 1969

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KB Hypereutectic Pistons KB158.060 KB Hyper Piston - Chevy 327 Rod 5.700 D-Cup +13cc 2V

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Tags: Chevy Small Block Gen I