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Description
Atomic 475 ST Long Motor Ford Barra DOHC | OEM+ Spec | 600hp Capable | Blueprinted Street Build
Description:
The Atomic 475 ST is our OEM+ long motor for enthusiasts wanting factory reliability with some headroom for up to 600hp. This build is perfect for street-driven Barra-powered Falcons, conversions, or boosted daily drivers who want the confidence of a tough bottom end and properly matched upgrades without stepping into full race-spec territory.
Blueprint assembled, test-run in-house, and built from trusted Atomic components, the 475 ST gives you peace of mind and plug-and-play performance potential.
? Key Features
? Quality Block Prep
-
Ultrasonically tested seasoned Ford 6-cylinder Barra block
Selected for good wall thickness and structural integrity -
Fully machined and blueprint-prepped
Torque plate honed bores, decked, cleaned, and painted
? Crankshaft & Rotating Assembly
-
OEM crankshaft, inspected, polished, and balanced
-
Hypatec cast pistons
Coated skirts for wear reduction and quiet cold-start operation -
Superleggera rods fitted with ARP 2000 bolts
? Cylinder Head
-
Fully reconditioned OEM Barra cylinder head
Pressure tested, surfaced, and valve seats -
OEM valves or optional stainless steel upgrades
-
Polished FG cams with Stage 1 or Stage 2 camshaft upgrade options
-
Heavy duty valve springs available as an option
? Timing & Valvetrain
-
OEM timing gear with upgraded Atomic timing chain and OEM tensioner
Optional billet crank sprocket and HD guides -
Cleaned and bled OEM hydraulic lifters optional Atomic Anti Pump Lifters available
? Oil System
-
Refurbished OEM oil pump
Optional upgrade to FULL Steel pump housing -
Sump and pickup reconditioned and resealed
? Blueprint Assembly & Testing
-
Built in-house to Atomic blueprint spec
Bearing clearances, ring gaps, piston-to-wall, and deck heights precisely measured -
Test-run in Atomics test rig
Includes full report on oil pressure, temp, and compression balance
?? Whats Included
-
Fully assembled Atomic 475 ST Long Motor
-
Powder-coated rocker and timing covers (choice of colour)
-
Ford oil filter, 15W/40 run-in oil (14L), NGK plugs
-
Torque specs sheet, run-in instructions, spare gaskets, Atomic merch
-
12-month conditional street-use warranty
?? Optional Upgrades
-
FULL Steel oil pump
-
Stainless valves + upgraded valve springs
-
Adjustable VCT Delete Vernier cam gears
-
-10AN welded rocker cover breathers
-
High-volume sump or baffled oil pan
-
Choice of camshaft stage (Stage 13)
Specifications
Compatibility
Atomic 475 ST Long Motor Ford Barra DOHC | OEM+ Spec | 600hp Capable | Blueprinted Street Build
Description:
The Atomic 475 ST is our OEM+ long motor for enthusiasts wanting factory reliability with some headroom for up to 600hp. This build is perfect for street-driven Barra-powered Falcons, conversions, or boosted daily drivers who want the confidence of a tough bottom end and properly matched upgrades without stepping into full race-spec territory.
Blueprint assembled, test-run in-house, and built from trusted Atomic components, the 475 ST gives you peace of mind and plug-and-play performance potential.
? Key Features
? Quality Block Prep
-
Ultrasonically tested seasoned Ford 6-cylinder Barra block
Selected for good wall thickness and structural integrity -
Fully machined and blueprint-prepped
Torque plate honed bores, decked, cleaned, and painted
? Crankshaft & Rotating Assembly
-
OEM crankshaft, inspected, polished, and balanced
-
Hypatec cast pistons
Coated skirts for wear reduction and quiet cold-start operation -
Superleggera rods fitted with ARP 2000 bolts
? Cylinder Head
-
Fully reconditioned OEM Barra cylinder head
Pressure tested, surfaced, and valve seats -
OEM valves or optional stainless steel upgrades
-
Polished FG cams with Stage 1 or Stage 2 camshaft upgrade options
-
Heavy duty valve springs available as an option
? Timing & Valvetrain
-
OEM timing gear with upgraded Atomic timing chain and OEM tensioner
Optional billet crank sprocket and HD guides -
Cleaned and bled OEM hydraulic lifters optional Atomic Anti Pump Lifters available
? Oil System
-
Refurbished OEM oil pump
Optional upgrade to FULL Steel pump housing -
Sump and pickup reconditioned and resealed
? Blueprint Assembly & Testing
-
Built in-house to Atomic blueprint spec
Bearing clearances, ring gaps, piston-to-wall, and deck heights precisely measured -
Test-run in Atomics test rig
Includes full report on oil pressure, temp, and compression balance
?? Whats Included
-
Fully assembled Atomic 475 ST Long Motor
-
Powder-coated rocker and timing covers (choice of colour)
-
Ford oil filter, 15W/40 run-in oil (14L), NGK plugs
-
Torque specs sheet, run-in instructions, spare gaskets, Atomic merch
-
12-month conditional street-use warranty
?? Optional Upgrades
-
FULL Steel oil pump
-
Stainless valves + upgraded valve springs
-
Adjustable VCT Delete Vernier cam gears
-
-10AN welded rocker cover breathers
-
High-volume sump or baffled oil pan
-
Choice of camshaft stage (Stage 13)


































































































