SHORT BLOCK

We prepared simple short cylinder block as base of tuning. The short block has two kinds for your driving stages. The BASIC type was done minimum processing for adjusting uneven quality of factory parts. And, the EX type incorporated special parts and processing recommended by JUN. These are pre-assembled block which was done some required working of adjusting bearings, adjusting gap of piston rings, and assembling pistons, rods, and a crankshaft to a short block.
  • The BASIC type was discontinued.
  • SHORT BLOCK
JUN SHORT BLOCK
Engine Type Part # MSRP(yen) Remarks
NISSAN
VR38DETT EX 4.0L 7503M-N002ASK Not including seals and plugs of each brands
SUBARU
EJ20 BASIC 7503M-F001discontinued Not including seals and plugs of each brands
EX 2.2L 7503M-F002ASK
EJ25# BASIC 7503M-F003discontinued Not including seals and plugs of each brands
EX 7503M-F004ASK
OPT:Liner 7503M-F701ASK Optional: Additional fee of inserting Darton liner

VR38DETT SHORT BLOCK

  • SHORT BLOCK
  • SHORT BLOCK
  • SHORT BLOCK

This short block built in the Custom Kit EX 4.0L. And, it puts in the cylinder liner for expansion cylinder. We assembled the short-block by the most suitable clearances which has safe margin on the high revolution.

EX TYPE 4.0L

BORExSTROKE:96.0mmx92.0mm
E/G DISP.:3996cc

FEATURING

  • New Nissan OE Block
  • JUN Custom Kit EX 4.0L
    • JUN Piston Kit C-Series
    • JUN I-Beam Connecting Rod
    • JUN Billet Crank Shaft
  • Cylinder Liner
  • New Nissan Main Bearing
  • New Nissan Rod Bearing
  • Clearance Check and Cleaning
  • Adjusting Bearings
  • Adjusting Gap of Piston Rings
  • Assemble cylinder block

EJ20 SHORT BLOCK

BASIC TYPE

BORExSTROKE:92.0mmx75.0mm
E/G DISP.:1994cc

FEATURING

  • New Subaru OE Block
  • JUN Piston kit - P-Series (92.0mm)
  • New Subaru Connedting rod
  • New Subaru Crank Shaft
  • New Subaru Main Bearing
  • New Subaru Rod Bearing
  • Clearance Check and Cleaning
  • Adjusting Bearings
  • Adjusting Gap of Piston Rings

EX TYPE 2.2L

BORExSTROKE:92.5mmx79.0mm
E/G DISP.:2159cc

FEATURING

  • New Subaru OE Block
  • JUN Custom Kit EX 2.2L
    • JUN Piston Kit C-Series
    • JUN I-Beam Connecting Rod
    • JUN Billet Crank Shaft
  • Cylinder Reinforcement by Rib
  • New Subaru Main Bearing
  • New Subaru Rod Bearing
  • Clearance Check and Cleaning
  • Adjusting Bearings
  • Adjusting Gap of Piston Rings

EJ25 SHORT BLOCK

  • SHORT BLOCK
  • SHORT BLOCK
  • SHORT BLOCK

BASIC TYPE

BORExSTROKE:99.5mmx79.0mm
E/G DISP.:2457cc

FEATURING

  • New Subaru OE Block
  • JUN Piston kit - P-Series (99.5mm)
  • New Subaru Connedting rod
  • New Subaru Crank Shaft
  • New Subaru Main Bearing
  • New Subaru Rod Bearing
  • Clearance Check and Cleaning
  • Adjusting Bearings
  • Adjusting Gap of Piston Rings

EX TYPE

BORExSTROKE:100.0mmx79.0mm
E/G DISP.:2481cc

FEATURING

  • New Subaru OE Block
  • JUN Custom Kit EX Turbo
    • JUN Piston Kit C-Series
    • JUN I-Beam Connecting Rod
    • JUN Billet Crank Shaft
  • Cylinder Reinforcement by Rib
  • New Subaru Main Bearing
  • New Subaru Rod Bearing
  • Clearance Check and Cleaning
  • Adjusting Bearings
  • Adjusting Gap of Piston Rings

Optional

  • Darton Liner Kit