Description
BULLET 4G63 BILLET BLOCK
The Bullet 4G63 to suit Mitsubishi EVO 4-9 applications has been engineered to deliver reliability in 1700hp environments. As fitted to Collin Wilshires Mitsubishi Eclipse which runs a 6:53@223MPH and is currently the worlds fastest 4G63. This product has vastly improved block rigidity and improved deck thickness over the stock unit. Distortion of cylinder bores and crank tunnel is dramatically reduced through increased material thickness and a Bullet 4 bolt main cap system. This product offers significant weight savings and has minimal modifications to directly replace the standard block.
| Name of product | 4G63 (suits EVO 4-9) |
|---|---|
| Actual Weight | 29kg |
| Block Material | 6061 aircraft grade billet aluminium. |
| Design improvements | 4 bolt mains, increased block deck and cylinder wall thickness. Performance sleeves fitted |
| Studs included | ARP 8740 1/2” Head and 7/16” Main |
| Modifications required to fit | Bracket to support oil pickup required, remote oil filter, external oil pump |
| Modifications to head required | Drill out head stud holes to 14mm. |
| HP rating | 1700* |
| Significant benefits | Weight saving, significantly increased rigidity and durability. May be bored to 87mm |
| Finish | Raw machined |
| Options available | Bullet Fire Ring Head Sealing System 4G64 (Increased deck height) available |
| Stock block weight in comparison: | 49kg |