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PRO STREET Engine Kit - Ford 331 Reverse Dome -20.1cc
Ford 331 Reverse Dome -20.1cc Pro Street Engine Kit

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The Pro-Street Engine Kits are capable of handling extremely high horsepower levels.Cog belt blowers, big power adders, and high rpm are the playground of our Pro-Street Engine Kits. Featuring forged steel crankshafts, lightweight forged steel connecting rods, and forged pistons. They provide an excellent level of reliability in a brutal environment.

Pro-Street kits Include:

  • Forged Pistons
  • CHP Forged Steel Crankshafts
  • CHP Forged 4340 H-Beam Rods
  • Total Seal Rings
  • King High Performance Engine Bearings

Item# Item Name CHP Price Qty Add
11938-030-PS-F331 PRO STREET Engine Kit - Ford 331 Reverse Dome -20.1cc (+.030")
$0.00
11938-040-PS-F331 PRO STREET Engine Kit - Ford 331 Reverse Dome -20.1cc (+.040")
$0.00
11938-STD-PS-F331 PRO STREET Engine Kit - Ford 331 Reverse Dome -20.1cc (STD)
$0.00
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See why we prefer 28oz. balancing over 50oz. balancing.

ItemRacer PriceAdd
$200.00
$108.99
$188.99
$75.99
$75.99
$249.99




Technical Specs:
Item Code11938-PS-F331
Vendor NameProbe Industries
Product TypeEngine Kit
Product ModelPro Street
Engine Displacement (cu.in.)331
Engine FamilyFORD-LINCOLN-MERCURY - Small Block 302 Based V8
BalancedNo
Piston ManufacturerProbe Industries
Piston Part Number11938
Piston Material2618-t61 Forged Aluminum
Piston Top TypeReverse Dome
Piston Head Volume (CC)-20.1cc
Piston Base Bore (in)4.000
Piston Compression Height (in)1.175
Ring TypeMoly-Pre Fit
Crankshaft VendorProbe Industries
Crankshaft Part Number10051
Crankshaft Material4340 Forged Steel
Crankshaft Stroke (in)3.250
Crankshaft Main Journal Size (in)2.248
Crankshaft Rod Journal Size (in)2.123
Connecting Rod VendorProbe Industries
Connecting Rod Part Number10075
Connecting Rod Material4340 Forged Steel
Connecting Rod Length (in)5.400
Connecting Rod TypeH-Beam




Compression Ratio:
Part NumberCylinder Head Volume
58.0cc61.0cc64.0cc68.0cc
11938-0308.668.418.187.89
11938-0408.708.458.217.92
11938-STD8.568.328.087.80

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Engine Kits > Ford Small Block & Big Block Engine and Stroker Kits - 302/351W/351C/390FE/427FE/428FE/460 > Ford - 302 Small Block V8 > 331 cubic inches > Reverse Dome
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