The Bullet 4G63 DSM 7 Bolt product is a bolt up replacement for 2nd Generation Eclipse and Talon applications as well as Mitsubishi EVO 1-3.
The Bullet 4G63 DSM 7 Bolt product is a bolt up replacement for 2nd Generation Eclipse and Talon applications as well as Mitsubishi EVO 1-3.
It has been engineered to deliver reliability in 1700hp environments.
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.
The Bullet 4G63/64 comes in 3 models, Wet or Dry Deck (open or closed deck) with water jackets & a Solid Drag only version.
So Street-Strip-Circuit-Bullet has you covered!
| Name of product | 4G63 DSM 7 (2nd Gen Eclipse / Eagle Talon applications and Mitsubishi EVO 1-3) |
|---|---|
| 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 | ARP8740 1/2” Head and 7/16” Main studs. |
| Modifications required to fit | Remote Oil Filter, external oil pump and modified Water Inlet. |
| 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 Wet deck / Dry deck / Solid block options |
| Stock block weight in comparison | 49kg |
The optional Bullet Fire Ring head sealing system uses a metallic gasket with grooved brass rings for the cylinders that provide exceptional head sealing under ultra high loads.
Increased deck thickness increases rigidity and stability for better head gasket sealing.
Bullet supply premium studs and block plugs with all billet blocks.
Our blocks are machined from 6061 aircraft-grade billet aluminium, so they are much lighter than cast iron alternatives. Typical weight savings are more than 20kg.
Our unique design incorporates siamese bores, dry sleeves and a one-piece cradle resulting in maximum rigidity. Cylinders stay round and piston rings seal better under high load resulting in more power.
Four bolt, billet one piece main cradle improves bottom and rigidity to reduce main tunnel deflection under extreme load. The cradle is made from the same material to ensure equal expansion rates and maintain a round bearing housing at different temperatures.
Bullet’s registered designs are developed to identify and eliminte structural weaknesses in OEM blocks. They are built to exceptionally precise tolerances for exceptional results.
Cooling system design improvements and efficient fluid paths are a significant feature of the Bullet block.
