The IAG 750 Short Block starts with brand new Subaru 2.5L engine case halves. Our machinists machine the assembled case halves in our Haas VF-4SS CNC mill to accept the IAG Closed Deck inserts, transforming the block into a solid deck. Next, a deck pair of deck plates are attached and the short block is bored and honed to 99.75mm in our in-house Sunnen SV-30 computer controlled cylinder hone. IAG's in-house honing process allows us to set custom piston to wall clearances to ensure quiet operation and reduced oil consumption. The modified case halves are then assembled using a new 2017+ Subaru 2.5L nitride treated STI crankshaft and IAG-Spec Tuff H-Beam connecting rods with ARP rod bolts. IAG Short blocks feature ACL or King Race rod and main bearings and are all balanced and blueprinted. Finally, the case halves are sealed with new OEM main/case bolts and sealant. If you plan to use the IAG 750 Short Block with EJ20 Cylinder Heads, make sure to select the "Hybrid Pistons" option at checkout. These specially designed JE pistons allow the use of EJ20 cylinder heads without the requirement for a chamber matching service to be performed to the cylinder heads. This option is great for international clients who are not able to send their cylinder heads in for modification. This also works great for USDM EJ20 owners who prefer to use a 2.5l short block. The 9.5:1 Compression JE FSR piston set includes .905 x 2.250 straight wall carbon steel wrist pins with Tru Arc locks along with a complete ring set.
Features & Benefits:
- The IAG 750 Short Block has a power output rating of 750 BHP
- All IAG Short Blocks are balanced and blueprinted
- Compression Ratio: 8.5:1 on D Cylinder Heads (EJ255), 8.2:1 on B, V and W EJ257 Heads with standard thickness gasket, 9.5:1 on S20 Heads.
Associated Comments:
- 750 Closed Deck Includes: Case Halves - Converted to Closed Deck using brand new Subaru OEM case halves, bored and honed to 99.75mm, Pistons - IAG-Spec JE FSR 99.75mm 2618 Forged Pistons, Ring Set, .210" 9310 Steel Wrist Pins, Clips, (Perfect Skirt Coating and Offset Wrist Pins), Connecting Rods - IAG-Spec Tuff H-Beam / ARP2000 Rod Bolts, Rod / Main Bearings - ACL or King Race bearings, Crankshaft - Standard New Subaru Nitride Treated 2017+ STI Crankshaft, Case / Main Bolts - Standard FHI Subaru case bolts.
Additional Attributes:
Extended Information:
- Emissions : EPA Eligible
- Life Cycle Status: Available To Order
Packaging:
- Quantity of Each: 1
- Package UOM: EA
- Dimension: 21 x 17 x 21 inches
AUTHORIZED
