top of page
Looking for a drop in solution? Get back on the road fast with one of our crate engine options. We specialize in machining Subaru Blocks and have them machined and ready to go. This accelerates the crate engine build time by starting with a ready to build block. Contact us for a custom quote. CORE IS REQUIRED w/GOOD HEADS. New OEM Heads Castings are generally required on EJ255s and EJ257s as they do not pass quality inspection after a catastrophic failure, unfortunately. Also, Cams, Cam Phasers, Lifters, Valves, and Valve Train may all need to be swapped to your engine unless purchased all new. So core quality is extremely important and not taken lightly. Contact Synergy for a free quote.
EJ251 and EJ253 SOHC
Topline Stage 1.5 Crate Engine
$4950
Plus Core
Blueprinted Block Machining Package
Line Honing w New OEM Bolts
Topline Piston Set at .50mm O/S
Manley H Beam Connecting Rods
New OEM STi Nitrated Crankshaft
King XPG Bearing Set
New OEM Main Bolt and O-Ring Kit
New OEM Plug and Baffle Kit
New OEM Oil Pan and Pickup Tube
ARP Head Studs
Topline Gasket Kit
Topline Timing Belt
Topline Water Pump
Topline Oil Pump
Heads Squared / Surfaced On Cam Centerline
Topline Valve Guides / Guide Honing
3D 5 Angle Seat Machining
Topline Intake Valves
Topline Exhaust Valves
EJ255 and EJ257 Crate Engines
Stage 2 Street Short Block (475 HP)
Blueprinted Block Machining Package
Line Honed
Mahle PowerPak Pistons .25mm OS
Manley H Beam Connecting Rods
New OEM STi Nitrated Crankshaft
King XPG Bearing Set
New OEM Main Bolt and O-Ring Kit
New OEM Plug and Baffle Kit
New OEM Head Castings
Supertech / Manley Valve Springs
Factory Cams
ARP Head Studs
Cometic Head Gaskets
OEM Subaru Oil Pump
OEM Subaru Water Pump
OEM Subaru STi Oil Pan
Killer B Motorsports Oil Pickup Tube
OEM Subaru OR Gates Racing Timing Belt
OEM Subaru Timing Pulleys / Tensioner
$7500
Plus Core
Stage 2 Pro Street Crate Engine
Blueprinted Block Machining Package
+Pinned Deck Conversion
Mahle PowerPak Pistons .25mm OS
Manley Performance Connecting Rods
New OEM STi Nitrated Crankshaft
King XPG Bearing Set
New OEM Main Bolt and O-Ring Kit
New OEM Plug and Baffle Kit
New OEM Head Castings
$8500
Plus Core
Stage 2.5 Short Block (550 HP)
Blueprinted Block Machining Package
+Pinned Deck Conversion
Manley Performance Pistons .25mm OS
Manley Performance H PLUS Connecting Rods
New OEM STi Nitrated Crankshaft
King XPG Bearing Set
ARP Main Bolt Kit
Line Honing
New OEM Plug and Baffle Kit
New OEM Head Castings
$8700
Plus Core
Manley Performance Stroker Crate Engine
$Call
Blueprinted Block Machine Package
Pinned Deck Conversion ( Darton Sleeves Optional)
Line Hone w/ O/S King Main Bearings
ARP Main Case Bolts
Manley Performance Turbo Tuff Pistons
Manley Performance Turbo Tuff I Beam Rods
Manley Performance Billet Crankshaft
King XPG Bearing Set
New OEM Plug and Baffle Kit
New OEM Head Castings
Manley Performance Race Intake and Exhaust Valves
Manley Performance Valve Springs / Titanium Retainers
Darton Sleeved Short Block
Blueprinted Block Machine Package
Darton Sleeves Installed
Line Hone w/ King O/S Main Bearings
ARP Main Case Bolts
Forged Pistons (Manley/Wiseco/CP/Other)
Manley Performance H Beam Plus Rods
New OEM STi Nitrated Crankshaft
King XPG Bearing Set
New OEM Outer Case Bolt and O-Ring Kit
New OEM Plug and Baffle Kit
New OEM Head Castings
Stage 4 Heads
Custom Aftermarket Cams
Manley Spring/Retainers
Manley Raceline Valves
New Stainless Exhaust Studs
$11500
Plus Core
CNC Porting w/ Supertech Bronze Guides
$1000
Looking for serious power? Add CNC Porting to any of our DOHC EJ Crate Engines along with a Newen CNC Seat and Guide Profile cut State of the art equipment is available for your crate engine project. These ports have been tuned to perfection and offer consistency no hand port can match! Therefor, we do not even offer hand porting, it is no competition, and in porting you get what you pay for. We offer only the BEST in porting on our crate engines.
What's In The Details
At Subie Machine, our Crate Engines are built with quality in mind. We always replace certain fasteners, cam sprockets, timing covers, and other key details with OEM Subaru parts.
Tuning / Running Stand / SimTest
We offer a few options at the moment for testing our engines before they ship across country. Our #1 solution for quality is called the SimTest Engine Analyzer. This test station rotates the engine, and supplies heated oil under a controlled oil pressure. This allows us to put the engine around 200 RPM, and listen for any noise or odd behavior the engine may be experience before actual startup. We put every engine on the SimTest Analyzer before the engine is considered complete. For an additional charge, we have a Engine Running Stand, which we can put a complete engine on for startup testing. We eventually will offer engine dyno and / or chassis dyno tuning, but we do not offer tuning at this time.
bottom of page