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PRO STREET Engine Kit - Ford 331 Flat Top -4.0cc
Ford 331 Flat Top -4.0cc 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. Internal balance crankshafts and H-Beam rods are also available.

Pro-Street kits Include:

  • Wiseco Forged Pistons
  • CHP Forged Steel Crankshafts
  • Scat Forged 4340 I-Beam Rods
  • Wiseco Steel Piston Rings
  • King Engine Bearings


Item# Item Name CHP Price Qty Add
10666-030-PS-F331 PRO STREET Engine Kit - Ford 331 Flat Top -4.0cc (+.030)
$1,850.00
10666-040-PS-F331 PRO STREET Engine Kit - Ford 331 Flat Top -4.0cc (+.040)
$1,850.00
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ItemRacer PriceAdd
$200.00
$108.99
$188.99
$75.99
$75.99
$249.99




Technical Specs:
Item Code10666-PS-F331
Vendor NameCoast High Peformance
Product TypeEngine Kit
Product ModelPro Street
Engine Displacement331
Engine FamilyFORD - 302W Based V8
BalancedNo
Piston ManufacturerWiesco
Piston Part NumberPTS512
Piston Material4032-t61 Forged Aluminum
Piston Top TypeFlat Top
Piston Head Volume-5.0cc
Piston Base Bore4.000
Piston Compression Height1.165
Ring TypeSteel Pre-Fit
Crankshaft VendorCoast High Performance
Crankshaft Part Number1103-10051
Crankshaft Material4340 Forged Steel
Crankshaft Stroke3.250
Crankshaft Main Journal Size2.248
Crankshaft Rod Journal Size2.123
BalanceExternal 28 oz
Connecting Rod VendorScat Enterprises
Connecting Rod Part NumberSCA-25400927
Connecting Rod Material4340 Forged Steel
Connecting Rod Length (in)5.400
Connecting Rod TypeI-Beam




Compression Ratio:
Part NumberCylinder Head Volume
58.0cc61.0cc64.0cc68.0cc
10666-03010.379.999.659.23
10666-04010.4110.039.699.27




For more videos, check out our Coast High Performance/Custom Performance Engines YouTube pages. Click below


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 > Flat Top
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