1979 Pontiac Trans Am LS3 and Supercharger Upgrades at V8 Speed and Resto Shop

This clean 1979 Pontiac Trans Am came to the V8 speed and Resto shop in need of some major performance upgrades. The car was born with an anemic Oldsmobile 403 V8 engine coupled to a 3 speed automatic transmission. We did an initial dyno run to find it only made 168 horsepower at the rear wheels, which might have been okay for 1979, but definitely not cool for today. The answer to this problem lies in the form of a Edelbrock supercharged Chevrolet performance LS3 V8 backed by a 6-speed T56 Magnum transmission.

The car has already had some suspension upgrades with some cool parts from Hotchkiss, but we are going to install the new Powertrain and dial-in the suspension to make sure the car handles all that Newfound supercharged power. The E Force supercharger relies on an upgraded camshaft from Comp Cams, and is capable of making over 800 horsepower running on E85 fuel. We will be sharing complete build and final dyno videos of this car once the transformation is complete.

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1979 Pontiac Trans Am LS3 Swap and Suspension Upgrades at V8 Speed and Resto Shop

This 1979 Pontiac Trans Am was originally equipped with a 403 cubic inch Oldsmobile V8, and although it was pretty hot for the time, it just isn’t enough for the owner today.    The car came to the V8 Speed & Resto Shop for some high-performace upgrades including a GM LS3 485 HP V8 engine fed by a Holley EFI system, and it will handle better thanks to a Ridetech Street Grip suspension system with YearOne wheels.   Wilwood brakes will haul it down in short order.  Before all the fun, we had to fix some rusty floors, which was a good time to fabricate a custom firewall for the car as well.   Follow along with all the progress here! 

 

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