IAG

IAG / Crest Billet Aluminum EJ25 Subaru Case Halves

2006-2014 Subaru WRX / 2004+ Subaru STI

$11,549.99
Ships for free in the 48 states

SKU: IAG-ENG-1600We price match!

On order from MFG
Average time to ship: 8 business days

HIGHLIGHTS:

  • Solid billet 6061-T6 Aerospace-grade aluminum construction
  • Built-in Darton sleeves
  • Designed to sustain power levels that would surpass the limits of the factory case halves

 

 

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Details

IAG / Crest Billet Aluminum EJ25 Subaru Case Halves 


SPECS:

  • Machined from solid billet 6061-T6 Aerospace-grade aluminum materials
  • Darton Ductile iron sleeves
  • Increased material thickness in all known weak points around the head studs and bottom end location
  • Unique 4 bolt bottom end strengthening
  • Threads are rolled into the block rather than conventionally cut for much greater strength
  • Full cooling system operation
  • Radiused coolant and oil galleries for improved flow and less foaming/turbulence
  • Fits all factory engine bay ancillaries such as AC, power steering
  • Multiple times stiffer and stronger than the stock case
  • Precision machined for a superior surface finish
  • Hard anodized to avoid marking or straining

 

MINIMAL REQUIREMENTS TO BUILD AND ASSEMBLE (ALL SOLD SEPARATELY)

  • ARP case bolts
  • 14mm head studs
  • Internal components like pistons, rods, bearings, and crankshaft
  • Final bore and hone to fit piston specifications

 

YOU READ THAT RIGHT - BILLET ALUMINUM CASE HALVES

IAG Performance has teamed with Crest, formerly known as Wilall to develop these billet aluminum case halves. These case halves have been designed to change the Subaru performance tuning market by addressing virtually every weak point that exists in max power builds. These are machined from 6061-T6 aerospace aluminum and feature Darton Ductile Iron Sleeves, and the block has increased material thickness over the OEM cast aluminum case halves. This is an ideal block for those of you who need the strength needed to sustain higher amounts of horsepower and boost that would otherwise surpass the limits of the factory EJ engine. 

 

 


 

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