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IAG Stage 2.5 EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT IAG Stage 2.5 EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT Quick View
IAG Performance

IAG Stage 2.5 EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT

$4,799.99
IAG-ENG-1252
All Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 2.5 Subaru EJ25 Closed Deck Short Block  The IAG Stage 2.5 Short Block starts with brand new Subaru 2.5L engine case halves....
IAG Stage 2 2.5L Subaru Short Block for WRX, STI, Legacy GT, Forester XT IAG Stage 2 2.5L Subaru Short Block for WRX, STI, Legacy GT, Forester XT Quick View
IAG Performance

IAG Stage 2 2.5L Subaru Short Block for WRX, STI, Legacy GT, Forester XT

$3,799.99
IAG-ENG-1202
All Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 2 Short Block The IAG Stage 2 Short Block is designed for modified EJ25 Subaru's that need a beefed-up performance short block....
IAG Stage 2 FA20 DIT Subaru Short Block for 2015+ WRX IAG Stage 2 FA20 DIT Subaru Short Block for 2015+ WRX Quick View
IAG Performance

IAG Stage 2 FA20 DIT Subaru Short Block for 2015+ WRX

$4,839.99
IAG-ENG-1206
All Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 2 FA20 DIT Short Block The IAG Stage 2 short block starts with new Subaru FA 2.0L engine case halves that are...
IAG Stage 1 2.5L Subaru Short Block For WRX, STI, Legacy GT & Forester XT IAG Stage 1 2.5L Subaru Short Block For WRX, STI, Legacy GT & Forester XT Quick View
IAG Performance

IAG Stage 1 2.5L Subaru Short Block For WRX, STI, Legacy GT & Forester XT

$3,599.99
IAG-ENG-1002
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
The IAG Stage 1 Short Block is perfect for lightly modified EJ25 Subaru's that need a basic and reliable performance short block. Subaru turbo...
IAG STAGE 2.5 FA20 DIT SUBARU CLOSED DECK SHORT BLOCK FOR 2015+ WRX IAG STAGE 2.5 FA20 DIT SUBARU CLOSED DECK SHORT BLOCK FOR 2015+ WRX Quick View
IAG Performance

IAG STAGE 2.5 FA20 DIT SUBARU CLOSED DECK SHORT BLOCK FOR 2015+ WRX

$5,699.99
IAG-ENG-1255
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
The IAG Stage 2.5 short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then IAG machines...
IAG STAGE 4 TUFF EJ25 SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LEGACY GT, FORESTER XT IAG STAGE 4 TUFF EJ25 SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LEGACY GT, FORESTER XT Quick View
IAG Performance

IAG STAGE 4 TUFF EJ25 SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LEGACY GT, FORESTER XT

$6,599.99
IAG-ENG-1452
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 4 Tuff Subaru EJ25 Closed Deck Short Block The IAG Stage 4 Tuff Short Block starts with brand new Subaru 2.5L engine case...
IAG STAGE 2.5 FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (10.5:1 COMPRESSION RATIO) IAG STAGE 2.5 FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (10.5:1 COMPRESSION RATIO) Quick View
IAG Performance

IAG STAGE 2.5 FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (10.5:1 COMPRESSION RATIO)

$5,699.99
IAG-ENG-1256
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 2.5 FA20 Closed Deck Short Block The IAG Stage 2.5 short block starts with new Subaru FA 2.0L BRZ engine case halves...
IAG STAGE 2 FA20 SUBARU SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (10.0:1 COMPRESSION RATIO) IAG STAGE 2 FA20 SUBARU SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (10.0:1 COMPRESSION RATIO) Quick View
IAG Performance

IAG STAGE 2 FA20 SUBARU SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (10.0:1 COMPRESSION RATIO)

$4,839.99
IAG-ENG-1209
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 2 FA20 Short Block The IAG Stage 2 short block starts with new Subaru FA 2.0L BRZ engine case halves that are...
Mountune MRX Short Block Engine - Ford Fiesta ST 1.6L EcoBoost 2014-2019 Mountune MRX Short Block Engine - Ford Fiesta ST 1.6L EcoBoost 2014-2019 Quick View
mountune

Mountune MRX Short Block Engine - Ford Fiesta ST 1.6L EcoBoost 2014-2019

$3,350.00
MTN6064-SB-160A
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components New products Shortblocks
This item is built to order, lead time is approx. 6-8 weeks from date of purchase! No Refunds or Cancellations mountune’s extensive knowledge of...
IAG Stage 4 Tuff EJ20 Subaru Closed Deck Short Block - Subaru WRX 2002-2005 IAG Stage 4 Tuff EJ20 Subaru Closed Deck Short Block - Subaru WRX 2002-2005 Quick View
IAG Performance

IAG Stage 4 Tuff EJ20 Subaru Closed Deck Short Block - Subaru WRX 2002-2005

$6,599.99
IAG-ENG-1455
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 4 Tuff Subaru EJ20 Closed Deck Short BlockThe IAG Stage 4 Tuff Short Block starts with brand new Subaru 2.0L engine case...
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IAG Magnum EJ20 Subaru Closed Deck Short Block - Subaru WRX 2002-2005 IAG Magnum EJ20 Subaru Closed Deck Short Block - Subaru WRX 2002-2005 Quick View
IAG Performance

IAG Magnum EJ20 Subaru Closed Deck Short Block - Subaru WRX 2002-2005

$5,999.99
IAG-ENG-1281
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Magnum Subaru EJ20 Closed Deck Short BlockThe IAG Magnum EJ20 Short Block starts with brand new Subaru 2.0L engine case halves. IAG machines...
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IAG Stage 2.5 EJ20 Subaru Closed Deck Short Block - Subaru WRX 2002-2005 IAG Stage 2.5 EJ20 Subaru Closed Deck Short Block - Subaru WRX 2002-2005 Quick View
IAG Performance

IAG Stage 2.5 EJ20 Subaru Closed Deck Short Block - Subaru WRX 2002-2005

$4,799.99
IAG-ENG-1258
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 2.5 Subaru EJ20 Closed Deck Short BlockThe IAG Stage 2.5 Short Block starts with brand new Subaru 2.0L engine case halves. IAG...
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IAG Stage 2.5 International Hybrid Subaru EJ25 Closed Deck Short Block - 2002-2005 Subaru WRX IAG Stage 2.5 International Hybrid Subaru EJ25 Closed Deck Short Block - 2002-2005 Subaru WRX Quick View
IAG Performance

IAG Stage 2.5 International Hybrid Subaru EJ25 Closed Deck Short Block - 2002-2005 Subaru WRX

$4,899.99
IAG-ENG-1252.IH-1
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
The Hybrid EJ25 Short Block is designed for enthusiasts that want to increase the displacement and low end torque of their vehicle that originally...
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Subaru OEM Assembled Short Block - Subaru WRX 2015-2020 Quick View
Subaru

Subaru OEM Assembled Short Block - Subaru WRX 2015-2020

$2,239.94
10103AC480
All Best selling products Commerceinstruments Best Selling Products Engine Build Components New products Shortblocks
This is a brand new, completely assembled FA20DIT shortblock directly from Subaru of America. This block is the original equipment shortblock for the 2015-2020...
IAG STAGE 3 EXTREME FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S/ 86 (12.5:1 COMPRESSION RATIO) IAG STAGE 3 EXTREME FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S/ 86 (12.5:1 COMPRESSION RATIO) Quick View
IAG Performance

IAG STAGE 3 EXTREME FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S/ 86 (12.5:1 COMPRESSION RATIO)

$5,999.99
IAG-ENG-1324
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 3 Extreme FA20 Closed Deck Short Block The IAG Stage 3 Extreme short block starts with new Subaru FA 2.0L BRZ engine...
IAG STAGE 3 EXTREME FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (10.5:1 COMPRESSION RATIO) IAG STAGE 3 EXTREME FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (10.5:1 COMPRESSION RATIO) Quick View
IAG Performance

IAG STAGE 3 EXTREME FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (10.5:1 COMPRESSION RATIO)

$5,999.99
IAG-ENG-1323
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 3 Extreme FA20 Closed Deck Short Block The IAG Stage 3 Extreme short block starts with new Subaru FA 2.0L BRZ engine...
IAG Stage 3 Extreme FA20 DIT Closed Deck Short Block - Subaru WRX 2015-2021 IAG Stage 3 Extreme FA20 DIT Closed Deck Short Block - Subaru WRX 2015-2021 Quick View
IAG Performance

IAG Stage 3 Extreme FA20 DIT Closed Deck Short Block - Subaru WRX 2015-2021

$5,999.99
IAG-ENG-1313
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
The IAG Stage 3 Extreme short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then IAG...
IAG MAGNUM EJ25 SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LGT, FXT IAG MAGNUM EJ25 SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LGT, FXT Quick View
IAG Performance

IAG MAGNUM EJ25 SUBARU CLOSED DECK SHORT BLOCK FOR WRX, STI, LGT, FXT

$5,999.99
IAG-ENG-1280
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Magnum Subaru EJ25 Closed Deck Short Block The IAG Magnum Short Block starts with brand new Subaru 2.5L engine case halves. IAG machines the...
IAG STAGE 2.5 FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (12.5:1 COMPRESSION RATIO) IAG STAGE 2.5 FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (12.5:1 COMPRESSION RATIO) Quick View
IAG Performance

IAG STAGE 2.5 FA20 SUBARU CLOSED DECK SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (12.5:1 COMPRESSION RATIO)

$5,699.99
IAG-ENG-1257
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
AG Stage 2.5 FA20 Closed Deck Short Block The IAG Stage 2.5 short block starts with new Subaru FA 2.0L BRZ engine case halves...
IAG STAGE 2 FA20 SUBARU SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (12.5:1 COMPRESSION RATIO) IAG STAGE 2 FA20 SUBARU SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (12.5:1 COMPRESSION RATIO) Quick View
IAG Performance

IAG STAGE 2 FA20 SUBARU SHORT BLOCK FOR 2013+ BRZ / FR-S / 86 (12.5:1 COMPRESSION RATIO)

$4,839.99
IAG-ENG-1210
All Assembled Short Blocks Best selling products Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG Stage 2 FA20 Short Block The IAG Stage 2 short block starts with new Subaru FA 2.0L BRZ engine case halves that are...
IAG STAGE 4 EXTREME EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, PINNED + LINE HONED, ARP CASE BOLTS, 99.75MM BORE & HONE - FOR SUBARU WRX, STI, LGT, FXT IAG STAGE 4 EXTREME EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, PINNED + LINE HONED, ARP CASE BOLTS, 99.75MM BORE & HONE - FOR SUBARU WRX, STI, LGT, FXT Quick View
IAG Performance

IAG STAGE 4 EXTREME EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, PINNED + LINE HONED, ARP CASE BOLTS, 99.75MM BORE & HONE - FOR SUBARU WRX, STI, LGT, FXT

$4,299.99
IAG-ENG-1829
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
The Stage 4 Extreme is IAG's strongest and most prepared EJ25 Closed Deck offering. The case halves are split and the main webs are...
IAG STAGE 4 EXTREME EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, PINNED + LINE HONED, ARP CASE BOLTS, (NO BORE / HONE) - FOR SUBARU WRX, STI, LGT, FXT IAG STAGE 4 EXTREME EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, PINNED + LINE HONED, ARP CASE BOLTS, (NO BORE / HONE) - FOR SUBARU WRX, STI, LGT, FXT Quick View
IAG Performance

IAG STAGE 4 EXTREME EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, PINNED + LINE HONED, ARP CASE BOLTS, (NO BORE / HONE) - FOR SUBARU WRX, STI, LGT, FXT

$3,959.99
IAG-ENG-1828
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
Please Note: Overbore must be performed (99.75mm is the preferred bore) before assembly! The Stage 4 Extreme is IAG's strongest and most prepared EJ25 Closed...
IAG STAGE 4 TUFF EJ25 CLOSED DECK CASE W/ PLUGS - 14MM H.S.M., FIRE-LOCK, 99.75MM BORE & HONE - FOR SUBARU WRX, STI, LGT, FXT IAG STAGE 4 TUFF EJ25 CLOSED DECK CASE W/ PLUGS - 14MM H.S.M., FIRE-LOCK, 99.75MM BORE & HONE - FOR SUBARU WRX, STI, LGT, FXT Quick View
IAG Performance

IAG STAGE 4 TUFF EJ25 CLOSED DECK CASE W/ PLUGS - 14MM H.S.M., FIRE-LOCK, 99.75MM BORE & HONE - FOR SUBARU WRX, STI, LGT, FXT

$3,299.99
IAG-ENG-1826
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
The Stage 4 Tuff is one of IAG's strongest and most prepared EJ25 Closed Deck offering. IAG machines the case halves assembled together in...
IAG STAGE 4 TUFF EJ25 CLOSED DECK CASE W/ PLUGS - 14MM H.S.M., FIRE-LOCK, (NO BORE / HONE) FOR SUBARU WRX, STI, LGT, FXT IAG STAGE 4 TUFF EJ25 CLOSED DECK CASE W/ PLUGS - 14MM H.S.M., FIRE-LOCK, (NO BORE / HONE) FOR SUBARU WRX, STI, LGT, FXT Quick View
IAG Performance

IAG STAGE 4 TUFF EJ25 CLOSED DECK CASE W/ PLUGS - 14MM H.S.M., FIRE-LOCK, (NO BORE / HONE) FOR SUBARU WRX, STI, LGT, FXT

$2,999.99
IAG-ENG-1825
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
Please Note: Overbore must be performed (99.75mm is the preferred bore) before assembly!IAG's Stage 4 Tuff Closed Deck EJ25 converted case halves are the...
IAG STAGE 3 MAGNUM EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, 99.75MM BORE & HONE - FOR SUBARU WRX, STI, LGT, FXT Quick View
IAG Performance

IAG STAGE 3 MAGNUM EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, 99.75MM BORE & HONE - FOR SUBARU WRX, STI, LGT, FXT

$2,999.99
IAG-ENG-1819
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG's Stage 3 Magnum Closed Deck converted case halves were created to be the most affordable and cost-effective short block modification for EJ25 Subaru...
IAG STAGE 3 MAGNUM EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, (NO BORE & HONE) - FOR SUBARU WRX, STI, LGT, FXT Quick View
IAG Performance

IAG STAGE 3 MAGNUM EJ25 CLOSED DECK CASE - 14MM H.S.M., FIRE-LOCK, (NO BORE & HONE) - FOR SUBARU WRX, STI, LGT, FXT

$2,649.99
IAG-ENG-1818
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
Please Note: Overbore must be performed (99.75mm is the preferred bore) before assembly!IAG's Stage 3 Magnum Closed Deck converted case halves were created to...
IAG STAGE 3 EJ25 CLOSED DECK CASE - 1/2 IAG STAGE 3 EJ25 CLOSED DECK CASE - 1/2 Quick View
IAG Performance

IAG STAGE 3 EJ25 CLOSED DECK CASE - 1/2" H.S.M., 99.75MM BORE & HONE - FOR SUBARU WRX, STI, LGT, FXT

$2,749.99
IAG-ENG-1813
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG's Closed Deck converted case halves were created to be the most affordable and cost-effective short block modification for EJ25 Subaru turbo engines. The...
IAG STAGE 3 EJ25 CLOSED DECK CASE - 1/2 IAG STAGE 3 EJ25 CLOSED DECK CASE - 1/2 Quick View
IAG Performance

IAG STAGE 3 EJ25 CLOSED DECK CASE - 1/2" H.S.M., (NO BORE / HONE) - FOR SUBARU WRX, STI, FXT & LGT

$2,429.99
IAG-ENG-1812
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
Please Note: Overbore must be performed (99.75mm is the preferred bore) before assembly!IAG's Stage 3 Closed Deck converted case halves were created to be...
IAG STAGE 3 EJ25 CLOSED DECK CASE - 11MM H.S.M., 99.75MM BORE & HONE - FOR SUBARU WRX, STI, FXT & LGT IAG STAGE 3 EJ25 CLOSED DECK CASE - 11MM H.S.M., 99.75MM BORE & HONE - FOR SUBARU WRX, STI, FXT & LGT Quick View
IAG Performance

IAG STAGE 3 EJ25 CLOSED DECK CASE - 11MM H.S.M., 99.75MM BORE & HONE - FOR SUBARU WRX, STI, FXT & LGT

$2,549.99
IAG-ENG-1811
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
IAG's Stage 3 Closed Deck converted case halves were created to be the most affordable, cost-effective short block modification for the Subaru EJ25 turbo...
IAG STAGE 3 EJ25 CLOSED DECK CASE - 11MM H.S.M., (NO BORE / HONE) - FOR SUBARU WRX, STI, FXT & LGT IAG STAGE 3 EJ25 CLOSED DECK CASE - 11MM H.S.M., (NO BORE / HONE) - FOR SUBARU WRX, STI, FXT & LGT Quick View
IAG Performance

IAG STAGE 3 EJ25 CLOSED DECK CASE - 11MM H.S.M., (NO BORE / HONE) - FOR SUBARU WRX, STI, FXT & LGT

$2,199.99
IAG-ENG-1810
All Best selling products Case Halves Commerceinstruments Best Selling Products Engine Build Components IAG Performance New products Shortblocks
Please Note: Overbore must be performed (99.75mm is the preferred bore) before assembly!IAG's Stage 3 Closed Deck converted case halves were created to be...
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All products sold by Patterson Performance Parts, LLC are intended for off-road and/or competition use only. By purchasing aftermarket products from us, having us install the products, or both, the customer takes full responsibility for any use, and/or misuse of the product; and agrees that Patterson Performance Parts holds no responsibility for any consequences, legal, or other, of such use and/or misuse.
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