Subaru Willall Racing Billet Block WREJBB
Finally there is a solution for the performance tuning market, thanks to Willall Racing reinventing the EJ25 and addressing every core weakness that exists regarding Hi-Output Subaru cylinder-head sealing, blow-by, lubrication and longevity.
Testing has shown 100+hp gains from the improved piston/bore seal alone.
Billet Block Features:
• Billet 6061-T6 Aerospace Grade Aluminium
• Darton Ductile Sleeves (fully supported to eliminate sleeve drop)
• ARP Case Bolt Kit
• 4 - Bolt Main Tunnel System
• 6 - Block Main Dowels (OEM has 2)
• Clearanced for Stroker Kits
• Precision Tunnel Boring
• Precision Deck Finishing
• 14mm Rolled Head Stud Threads + 16.5mm Dowels
• Choice of Raw Finish or Anodised (5 Colours)