Top Choices:
* Tremec T56 Magnum: This is a popular upgrade for its strength and relatively smooth shifting compared to some other options. The Magnum version is significantly stronger than the original T56 found in some later Camaros. It handles higher horsepower and torque well, crucial for a street/strip build. You'll need a bellhousing adapter to mate it to your LS1 (assuming you have one; the '94 likely had an LT1).
* Richmond 6-Speed: Richmond makes several gearsets for their 6-speed transmissions, allowing you to tailor the ratios to your engine's powerband and intended use. This offers great customization for optimal performance on the strip, but may be less refined for daily driving compared to the T56 Magnum.
Other Options (with caveats):
* Built/Fortified Automatic: A properly built 4L60E (the automatic originally in many '94 Z28s) or a 4L80E (stronger, but larger and heavier) can handle substantial power. However, the cost of a build to withstand serious power levels can approach or even exceed the cost of a good manual transmission. Automatic transmissions can be great for street/strip if you're prioritizing ease of use and don't mind sacrificing some control.
* Powerglide (2-speed automatic): Extremely simple and lightweight, a Powerglide is a popular choice in dedicated drag cars but completely unsuitable for street driving. Very short gearing means it's only suitable for short bursts of acceleration.
Factors to Consider:
* Engine modifications: The power output of your engine will heavily influence the choice. A mild build might be fine with a built automatic or even a stock T56, while a highly modified engine requires a stronger transmission like the T56 Magnum or a built Richmond.
* Budget: The T56 Magnum will generally be the most expensive option, while a built automatic will depend greatly on the level of reinforcement. A used transmission might save money, but thorough inspection is crucial.
* Driving style and intended use: How often will you drive the car on the street versus at the track? A T56 Magnum offers a good balance, while a dedicated drag transmission like the Powerglide is only for the strip.
Recommendation:
For most street/strip builds, the Tremec T56 Magnum is an excellent choice. It offers a good balance of strength, drivability, and relative ease of installation (compared to some other options). However, carefully assess your budget and engine power levels to make the best decision. Consulting with a reputable transmission shop is highly recommended to determine the best option for your specific setup.
