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

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Valve Covers*:
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The GT Series of CHP Long Blocks provide the widest range of economical performance and reliability. We rate the GT Series as being perfect for applications up to 450 Horsepower.

CHP GT Long Blocks Include:

  • Probe Industries FPS Forged Pistons
  • Probe Industries Cast Steel Crankshaft
  • Probe Industries CNC Beam Connecting Rods
  • Fully Machined and Inspected Factory Block
  • Patriot Performance 185CC 'Freedom Series' Heads
  • Scorpion Performance Rocker Arms
  • Comp Hydraulic Flat Tappet Camshaft
  • Elgin Industries Hydraulic Roller Lifters
  • Manley 4130 Steel Pushrods
  • Cloyes Street True Roller Timing Gear Set
  • Clevite Perfect Circle Rings
  • Clevite 77 Main P-Bearings
  • Clevite 77 Rod P-Bearings
  • Fel-Pro PermaTorqueMLS Head Gaskets
  • Includes Balancing
  • Blueprinted
  • Assembled to exacting tolerances and Inspected by CHP Master Engine Builders
*Some Long Blocks include different components than above. Please verify the "Specifications" tab to double check which components are included when purchasing this item.

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-LB
Vendor NameCoast High Performance
Product TypeLong Block
Product ModelGT
Engine FamilyFORD-LINCOLN-MERCURY - Small Block 302 Based V8
Engine Displacement (
Engine Balance TypeExternal-28oz
Compression Ratio10.40 : 1
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
Wrist Pin Material8620 Steel
Crankshaft VendorProbe Industries
Crankshaft Part Number10019
Crankshaft MaterialCast Steel
Connecting Rod VendorProbe Industries
Connecting Rod Part Number13754
Connecting Rod MaterialForged 5140 Steel
Connecting Rod Length (in)5.400
Connecting Rod TypeMachined Beam
Block ManufacturerFord
Block Part Number61829B
Block MaterialCast Iron
Block TypeOEM 302 Roller - 1 pc RMS
Cylinder Head ManufacturerPatriot Performance
Cylinder Head StyleFreedom Series
Intake Runner Volume (cc)185cc
Combustion Chamber Volume (cc)58cc
Head GasketSCE
Rocker System ManufacturerScorpion Performance
Rocker System TypeStud Mount - 1.6 Ratio
Camshaft ManufacturerElgin
Camshaft TypeHydraulic Flat Tappet
Valve Lift (Intake/Exhaust).496/.520
Duration (@ .050 Lift)224/234
Lobe Separation (degrees)112
NotesComponents rated to 450 Horsepower

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