RalliSpec EJ25 Short Block S4 (1150bhp) - Race Spec Pro Air Temp Reduces ground clearance of front

Reduces ground clearance of front bumper by approximately 40mm

250in wall thickness supports extreme loads

Rod Length Center-to-Center = 129

Manufacturer Part No: 12310AA410

RalliSpec EJ25 Short Block S4 (1150bhp) - Race Spec Pro Air Temp Reduces ground clearance of frontRELY ON RALLISPEC'S 25 YEARS OF SUBARU ENGINE BUILDING EXPERIENCE For those of you ready to really turn up the heat, we offer our Race Spec series of closed deck short blocks. These short blocks feature 14mm head stud machining and are optionally machined to accept Fire Lock head gaskets for serious combustion pressure sealing capabilities. The Race Spec Pro utilizes our new IRP pistons, the optimal 2618 piston to provide both incredible power