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DOMINATOR Engine Kit - Chevy 420 Reverse Dome -20.5cc
Chevy 420 Reverse Dome -20.5cc Dominator Engine Kit

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The Dominator Series of Engine Kits feature all the components necessary for all out competition. Dominators include internally balanced forged specialty crankshafts (where applicable), 4340 forged competition connecting rods, and forged pistons. Components are selected specifically for each intended application.

Dominators Include:

  • Forged Pistons
  • CHP Forged 4340 Crankshaft s (Typically Internal)
  • CHP Probe Forged 4340 Light Weight Rods
  • Total Seal File-fit Rings
  • King High Performance Engine Bearings
  • Tool Steel Wrist Pins

Item# Item Name CHP Price Qty Add
14890-030-DM-C420 DOMINATOR Engine Kit - Chevy 420 Reverse Dome -20.5cc (+.030")
$0.00
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ItemRacer PriceAdd
$200.00




Technical Specs:
Item Code14890-DM-C420
Vendor NameProbe Industries
Product TypeEngine Kit
Product ModelDominator
Engine Displacement (cu.in.)420
Engine FamilyCHEVROLET - Small Block V8
BalancedNo
Piston ManufacturerProbe Industries
Piston Part Number14890
Piston Material2618-t61 Forged Aluminum
Piston Top TypeReverse Dome
Piston Head Volume (CC)-20.5cc
Piston Base Bore (in)4.125
Piston Compression Height (in)1.062
Ring TypeMoly-Pre Fit
Crankshaft VendorProbe Industries
Crankshaft Part Number10125
Crankshaft Material4340 Forged Steel
Crankshaft Stroke (in)3.875
Crankshaft Main Journal Size (in)2.648
Crankshaft Rod Journal Size (in)2.100
Connecting Rod VendorProbe Industries
Connecting Rod Part Number10068
Connecting Rod Material4340 Forged Steel
Connecting Rod Length (in)6.000
Connecting Rod TypeLightweight I-Beam




Compression Ratio:
Part NumberCylinder Head Volume
58.0cc64.0cc68.0cc76.0cc
14890-03010.6010.009.649.00
14890-04010.6410.049.679.03

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Engine Kits > Chervolet Small Block & Big Block Engine and Stroker Kits - 350/383/400/434/454/496 > Chevrolet - 400 Small Block V8 > 421 cubic inches > Reverse Dome
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