09/26/2026
Here we have this rare '06 Silverado equipped with the 4.8L, 4x4, 5-Speed MG5 manual transmission.
Starting with the 4.8L, we've done a complete cam kit with Brian Tooley Racing Truck Norris camshaft complete with their valvetrain products such as pushrods, valve springs, and trunion kit. Paired with increased air flow from the ported 243 heads, fueling became a concern.
To give the owner some headroom for fuel delivery, we've installed the newer 50lb/hrs injectors from the Gen 4 platform ('07-'13). Because we've experience inconsistent problems from the use of EV1 to EV6 connector adapters, we've always chosen to solder the EV6 connectors instead. Providing a solid connection with a brand new connector to the injectors. Should the owner decide to install a bigger intake manifold + throttle body, they will still have sufficient amount of fueling to account for the increased air flow.
The transmission itself doesn't receive any modifications except for a simple fluid change. The Flywheel + Clutch combo is a direct OE replacement and works fine for this application.
The front brakes receive a overhaul with new caliper, rotors, pads, and brake hoses. The rear was originally equipped with drum brakes, but thanks to Little Shop MFG with their rear disk brake conversion products, we were able to retain the parking brake function.
Lastly, the differential still retained its 3.23 gear ratio, but was equipped with Eaton Performance Products Truetrac posi unit. Allowing both rear wheels to be driven equally and provide a much better driving experience for cornering and drifting applications.