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CHP GT Short Block - Ford 331 Flat Top -4.0cc
CHP GT Short Block - Ford 331 Flat Top -4.0cc

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The GT Series of CHP Short Blocks provide the widest range of economical performance and reliability.

CHP GT Short Blocks Include:

  • Probe Industries FPS Forged Pistons (VMS-75)
  • Probe Industries Cast Steel Crankshaft
  • Probe Industries CNC Beam Connecting Rods
  • Clevite Perfect Circle Rings
  • Clevite 77 Main P-Bearings
  • Clevite 77 Rod P-Bearings
  • Fully Machined and Inspected Factory Block
  • Balanced
  • Blueprinted
  • Assembled to exacting tolerances and Inspected by CHP Master Engine Builders

*Some Short Blocks include different components than above. Please verify the "Specifications" tab to double check which components are included when purchasing this item.


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Warranty Information

All COAST HIGH PERFORMANCE Short Blocks, Long Blocks, and Crate Motors feature a limited lifetime warranty. Click here for information.

Custom Builds

All CHP Crate Motors, Long Blocks, and Short Blocks can be customized to fit your specific needs. Additionally, if you can't find a particular engine combination online, give us a call or request a personalized quote by clicking here.

Technical Specs:
Item CodeP3311F-GT-F331-SB
Vendor NameCoast High Performance
Product TypeShort Block
Product ModelGT
Engine Displacement (
Engine FamilyFORD-LINCOLN-MERCURY - Small Block 302 Based V8
Engine Assembly TypeShort Block
Engine Balance Type28oz External
Engine Stroke (in)3.250
Engine Bore (in)4.030
Piston ManufacturerProbe Industries
Piston Part NumberP3311F-030
Piston Material4032 Forged Aluminum
Piston Top TypeFlat Top
Piston Head Volume (CC)-4.0cc
Piston Compression Height (in)1.165
Crankshaft MaterialCast Steel
Connecting Rod Length (in)5.400
Connecting Rod TypeMachined Beam
Block TypeFord - 302 Roller
Cam Bearing IncludedYes
Freeze Plugs IncludedYes
QuantitySold individually.
NotesComponents rated at 450 Horsepower
Pistons fit both Standard and Twisted Wedge cylinder heads.

Compression Ratio:
Part NumberCylinder Head Volume

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Timing Sets