Mitsubishi 4G63 CAMSHAFTS
The Mitsubishi Eclipse has been in production since 1989 and is produced solely for the United States and Canadian market, where it has also been built as the Eagle Talon and the Plymouth Laser through Mitsubishi Motors Corporation's close relationship with the Chrysler Corporation (now DaimlerChrysler) known as Diamond Star Motors, or DSM. The first generation Mitsubishi Eclipse was available in four trim levels in both FWD and AWD models, but all were equipped with the 4G63 engine, most in the turbocharged (4G63T) variety. The 1st Gen engine (6 bolt crank) was used from 1989-1992. The second generation engine (7 bolt crank) was introduced in 1993, but used in the 1st Gen chassis through 1994. In 1995 there was a major update in styling, including a convertible model called the Spyder. The 7 bolt, 4G63 engine was used until 1999. Both the 1st Gen and 2nd Gen 4G63 engines use the same camshafts, however do not confuse the 4G63 engine with the non-turbo, 420A Chrysler engine that was used in the base FWD Eclipse from 1995 to 1999.
| Stage | Description | Part# | Adv. Dur. | Dur @ .050 | Lift (in) | Lift (mm) | Kit# | Dyno | Price | Shop | Status |
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Street/Strip Specification Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. |
BC0101 | 272°/272° | 212°/212° | .401"/.381" | 10.18/9.66 | BC0100 | 
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$402.65 |
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Street/Strip Specification Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0100. |
BC0102 | 280°/280° | 218°/216° | .422"/.418" | 10.71/10.60 | BC0100 | 
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$402.65 |
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Full Race Specification Giant lift profile intended for those looking to achieve huge power numbers at high rpm. Requires extensive tuning and modifications. Requires BC0100. |
BC0103 | 288°/288° | 222°/220° | .468"/.478" | 11.88/12.14 | BC0100 |
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USDM 4G63 (Eclipse/Talon Turbo) | Stock | 248°/248° | 200°/200° | .349"/.350" | 8.86/8.89 |
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USDM 4G63 (Eclipse Non Turbo) | Stock | 256°/248° | 208°/204° | .365"/.349" | 9.27/8.86 |
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Mitsubishi 4G63 Adjustable Cam Gears
BC adjustable cam gears deliver the easiest way to dial in more horsepower and/or torque without getting underneath the valve cover, disassembling the engine or dealing with onboard electronics. BC gears are CNC machined from aerospace grade, 6061-T6 billet aluminum for ultimate tensile strength. Easy to read, laser etched face features micrometer style markings for precise adjustment (up to 10 degrees in each direction) and quick tunability. Each hub is held down by six ARP made, Grade-8 hex bolts for maximum clamping ability. Hard anodized finish prevents premature surface wear.
| Part Number | Description | Price | Shop |
| BC8810 | Cam Gears for Mitsubishi 4G63 / Evo I - VIII. Set/2 | $208.13 |
