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AMS Engine Longblocks

Turn Key Ready to Drop In Crate Motor!!
The AMS EVO VIII-IX 2.3RR Crate Motor is an AMS EXCLUSIVE! This is the ultimate in road racing power plants providing low RPM torque AND top end horsepower all without the hassle of sending in your cores. Our crate engine comes complete from valve cover to oil pan to timing belt and components. This package uses only the best products we sell and comes ready to drop into your EVO. Combine that with the latest in machine and assembly practices and you are assured only the best!

All our engines are hand assembled at AMS using the same care as the engine in our 1142 awhp, world record holding AMS Drag EVO. Every motor is balanced, blueprinted and assembled to AMS exacting standards.

Before assembly each block is checked for correct dimensions, cylinder bore, mains, block flatness, etc to ensure you get the best foundation for your new engine. Every engine we assemble has a build sheet where tolerances, torque specs, and clearances are documented.

Exclusive Features
  • Balanced and blueprinted with precise, documented assembly
  • Precision AMS spec machine work on block, crank and cylinder head
  • O-ringed block deck for improved head gasket seal
  • AMS CNC Cylinder Head, the best 4G63 head available
  • AMS/TMS Head Studs, the strongest available
  • AMS Race Balance Shaft Eliminator for added oil pump reliability
  • ARP Main Studs for peace of mind at high RPM
  • Power EnterpriseTiming Belt for added strength
  • AMS Wet Sump Oil Pan prevents oil starvation and adds oil capacity
  • Comes fully assembled, ready for installation

  • AMS spec pistons w/ coated skirts
  • AMS spec Billet crankshaft
  • AMS spec custom rods
  • ARP main stud kit
  • AMS race balance shaft eliminator kit
  • High performance rod & main bearings
  • Oil pump & sprocket
  • Crank sprocket & trigger plate
  • Oil filter housing
  • Rear main seal and housing
  • Water pump
  • O-ringed block deck
  • AMS CNC cylinder head
  • Lifters & rocker arms
  • Custom Metal head gasket for proprietary bore size
  • AMS/TMS head studs
  • Adjustable cam gears
  • Precision Enterprises timing belt
  • Timing belt tensioner and all other timing components
  • Valve cover
  • Front engine mount bracket
  • All necessary gaskets

  • Displacement: 2.27 liters
  • Compression Ratio: 9.25:1 or 10:1
  • Crankshaft: Custom stroke 4130 billet crank

  • Mitsubishi Lancer Evolution 8, 9
  • GSR, MR, RS and SE

Product Notes
Compression ratio options
  • 9.25:1 - Is good for most street and race applications. This can be tuned to make great power on pump gas & race gas.
  • 10.0:1 - Provides great power and response on race gas for track or strip. This can be run on pump gas with caution. (93+ octane only).

All Mitsubishi AMS Engine Longblocks
View All Mitsubishi EVO Engine Longblocks
Mitsubishi EVOPrice
(Mar 2005-Oct 2007) IX 2.3RR Crate Motor (Cams Not included in Price, Call for Details)$15,559.95  Add to Cart
(2003-Mar 2005) VIII 2.3RR Crate Motor (Cams Not included in Price, Call for Details)$15,499.95  Add to Cart
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Parts Available: A0172B-2A, A0172B-1A