Barra Long Engine

Barra Long Engine 4.0L Falcon BA-FGX

PR built 800whp


Purchase Information:

• You must send in a good engine block/crank/Head to Precision Racing to be rebuilt.
• Please allow 2-3 weeks for build times.
• Shipping both locally/interstate/internationally


Our Barra engine range is extensive and can be tailored to suit the specific punishment the new beast is going to receive.
The PR Budget Barra comes from years of development and testing of combinations, ranging from the experience of pushing factory engines to their limits, to our built combinations producing over 1600hp and over 8500rpm from a standard bore and stroke!
You will need a good engine core to be built/swap, or we can supply a core at an extra cost.

Specs and Features:

Built 800whp rated long engine

PR Exclusive Features

  • Balanced and blueprinted
  • Precise, documented hand assembly
  • High Performance Bearings (Rod & Main)
  • Balanced, turned & polished OEM Crankshaft with PR modifications
  • ARP Main Cap Fasteners
  • ARP Head studs with PR Spec washers
  • PR Spec Connecting Rods
  • PR Spec Forged Pistons
  • Brass Welsh Plugs
  • Modified oil galleries
  • PR Spec Oil Pump with Billet gears
  • PR HD Timing kit (crank sprocket, Timing chain, Guides, Tensioner)
  • Water Pump
  • 115lb Seat Pressure valve springs
  • Full Cylinder head service



  • Factory Displacement is maintained
  • Compression ratio is 9.0:1 unless otherwise Specified
  • Max rev limit is 7500rpm with supporting mods


Exhaust Back Pressure is a killer of any boosted engine, note that the power level stated is based on running one of our aftermarket exhaust manifolds. If running factory BA/F exhaust manifolds this engine should not be pushed further then 620rwhp, and FG factory exhaust manifolds should not be pushed any further then 700rwhp, even on a built engine



  • Harmonic Balancer Race Series/Underdrive kit – $600
  • Yella Terra Flex Plate with PR fitting technique – $900
  • Core Charge – $1,250 
  • Stainless steel race valves – $880 (required with N/A core)
  • Intake manifold gasket – $45
  • Exhaust manifold gasket – $55
  • PR Custom Camshafts – $1,350
  • PR HoonTune vernier gears – $450
  • Mild porting – $750
  • Race porting – $1,200
  • PR/ARP CA625+ 12mm – $589


  • PR spec fire ring head gasket upgrade, recommended for high EBP setups 
  • Harmonic Balancer Race Series/Underdrive kit 
  • ARP balancer bolt
  • Main cap girdle/brace
  • Stainless steel valve kit 
  • PR/ARP 9/16 head stud kit
  • PR Spec Grout Fill Block, Recommended for engines running standard manifolds
  • Stage 2 PR spec crank 
  • Upgraded Piston Pins
  • Mild Porting

$6,999 additional to base engine


  • PR stage 3 Billet Crank
  • Complete Billet race oil pump
  • PR 300m Race Rods
  • PR Custom Coated Race Pistons with Trend TP1 Coated Pins
  • Race porting
  • PR billet cams and Vernier gears
  • Extra cylinder head machining for high lift cams
  • Anti pump-up lifters

$13,499 additional to 1000hp engine