Piston And Rings,4.000"+.060" Flat Top w/2 V,Top Ring: 5/64", 2nd Ring: 5/64, Oil Ring: 3/16", Comp Ratios:12.0w/58cc, 11.4 w/62cc, 11.1 w/64cc, 9.8 w/76cc, Gram weight 547/107, Top Land.260". Valve Depth .250", Relief Dia. 2.200"
Created from a high-silicon aluminum alloy, KB Performance pistons are lightweight to improve throttle response and RPM changes while still being strong enough to withstand high compression and high temperatures. Each piston is engineeered with race ready features like high upper compression-ring locations, gas-accumulator grooves, drilled oil returns, and spiral-lock retainer grooves. KB Performance pistons are available for many popular engine makes and displacements. They also come in a variety of compression ratios to suit your performance needs.
  • Bore: 4.000 +.060"
  • Ring Set: 4000AM8
  • Set of 8 Pistons and Ring set kit 9906HCKTM.060
  • Stroke: 3.750
  • Comp HT: 1.433
  • O.E Deck HT: 9.025
  • Lock Ring:93
  • Flat Top 5cc 2 valve reliefs
  • Made with Chevy 350 SB Centered Pin with coated skirt
  • Now supplied with lockRings so the piston can be either full floatring or press pin
  • Pin Size: 0.9272 / Pin# 0927X216K
Attributes
Alloy 390
Base Number 9906HC
Bore (in) 4
Bore (mm) 101.6
Compression Ratio 58-12.0, 62-11.4, 64-11.1, 76-9.8
Country of Origin (Primary) MX
Crown (cc) +5cc
Crown Type FLAT TOP 2V
Eng. Disp Liters 6.3
Eng. Disp. In. 383
Engine Family Chevrolet SB V8 Gen I
Engine Manufacturer Chevrolet
Exhaust Valve Depth/diameter .250/2.200
GTIN 00800745156655
Hazardous Material Code N
Intake Valve Depth/diameter .250/2.200
Life Cycle Status Code Available to Order
Lock 93
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 0927X216K
Pin Type Press or Floating
Ring Pack 5/64, 5/64, 3/16
Rod (in) 5.7
Rod (mm) 144.78
Sold as KIT W/RINGS
Stroke (in) 3.75
Stroke (mm) 95.3
Top Land .260
Year Range -

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KB Hypereutectic Pistons 9906HCKTM.060 KB Automotive Claimer Piston - Chevrolet 383ci/6.3L (V8) Kit with Rings

Product Information

Tags: Chevy Small Block Gen I