FiP-LB-XR Long Block - 1000+ HP EJ Long block

FiP-LB-XR Long Block

Built & Assembled In-House by FI Performance

Built entirely in-house, this closed-deck 2.5L platform is engineered for extreme strength, consistency, and long-term reliability. Designed for high-boost, high-RPM race applications and rated for 1,000+ HP.

Short Block Features

Pistons

• JE Ultra-Forged 2618 Alloy

• 8.5:1 Compression Ratio

• .210” wall wrist pins

• Lateral gas ports

• Ceramic crown & skirt coatings

Connecting Rods

• I-Beam +2mm longer rods

• ARP CA625+ hardware

Bearings

• Coated main bearings

• Custom FI Performance rod bearings

Crankshaft

• Billet 79mm crankshaft

• Pinned mains, line-honed

Case & Hardware

• OEM Subaru 2.5L case halves

• V4 closed-deck conversion

• Fire-ring head gasket grooves

• Machined for 1/2" head studs (included)

• ARP case hardware

• Seasoned and precision-machined

Assembly

• Blueprinted and assembled in-house at FI Performance

Cylinder Heads (Long Block Option)

New Castings – Dropdown Selection

• V25

• D25

• W25

• B25

Head Features

• Kelford R199C camshafts (Single AVCS)

• GSC conical valve spring kit

• Bronze valve guides

• GSC intake valves

• Super alloy exhaust valves

• Ported runners

• DLC-coated cam buckets

• Machined for 1/2" head studs

• Fire-cut ring high-boost head gaskets

Power & Application

• Rated for 1,000+ HP

• Safe to 9,500 RPM with proper supporting components

• Built for high-boost, high-RPM race use

Oil System Requirements

• Up to 8,200 RPM: FI Performance ported oil pump or IAG Stage 2

• Over 8,200 RPM: Dry sump system recommended