IAG 1000+ Closed Deck Long Block Engine w/ Stage 5 Heads for 08-20 STI. 2009-subaru-impreza-2 5 i patented Kangaroo Paw ventilation and

patented Kangaroo Paw ventilation and a unique drill & slot pattern makes the perfect direct replacement rotor

OE to mild gear rattle

CNC porting is not only an efficient way of machining the heads and offers consistent port results every time

0L crankshaft with improved oil passages that is matched to ACL or King race main bearings

gold zinc plated steel brackets

IAG 1000+ Closed Deck Long Block Engine w/ Stage 5 Heads for 08-20 STI. 2009-subaru-impreza-2 5 i patented Kangaroo Paw ventilation andIAG 1000+ EJ25 Closed Deck Long Block w Stage 5 Heads: The IAG Performance Hand Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete, valve cover to valve cover, crate engine. The Long Blocks feature a combo of our proven IAG Performance Closed Deck Short Block and Cylinder Head packages, along with other race proven components to complete the assembly. When paired with our Long Block Install Packages, you have a true plug and play