Wiseco Pistons 1400HD 4G64 with 4G63 Head (21mm Pin 6-Bolt DSM) Compression Ratio | Bore Size:9.8:1 | 87.00mm (.020" Overbore) Supertech maganese bronze valve guides

Supertech maganese bronze valve guides for 4G63 Evo

or as a full set of 24

water is never efficiently processed or flowed between the block and head to provide for maximum heat dissipation in the combustion chamber

5oz (354grams)

If you are like most Evo owners

Wiseco Pistons 1400HD 4G64 with 4G63 Head (21mm Pin 6-Bolt DSM) Compression Ratio | Bore Size:9.8:1 | 87.00mm (.020" Overbore) Supertech maganese bronze valve guidesFits these Applications: Mitsubishi 4G64 with 4G63 Head (21mm Pin 6 Bolt DSM) 100mm Stroke for 150mm Rods 6 Bolt DSM (1988 1992. 5 Eclipse, Talon & Laser Turbo) Includes: (4) Pistons (4) Pins (8) Wire Locks (4) Set of Piston Rings Description: World renowned for our work building race winning pistons, Wiseco utilizes experience from a diverse background of the most sophisticated engines in such venues as Formula 1, Indy Racing League (IRL), NHRA Pro