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! 


Click “Read More” for the complete video build series and photo gallery!

1979 Pontiac Firebird Trans Am LS Engine Swap and Suspension at V8 Speed and Resto Shop Part 1

1979 Pontiac Firebird Trans Am LS Engine Swap and Suspension at V8 Speed and Resto Shop Part 1. This 1979 Pontiac Firebird Trans Am was running the original 180 horsepower Oldsmobile 403 V8 engine, but our customer wanted more horsepower and better performance from his black TA. He brought the car to the V8 Speed & Resto Shop for an LS Engine Swap to a GM Performance Parts LS3 V8 backed by a 4L70E 4-speed automatic transmission making over 480 horsepower, powered by a Holley Dominator EFI system.

However, upon inspection, the Trans Am revealed some rusty floors and previous repair work that was not up to the owner’s standards. The V8 team replaced the bad sheet metal with all new floors from Classic Industries and fabricated a custom firewall.

Once the shell was solid again, they swapped in a complete Street Grip suspension system from Ridetech for better cornering and straight-line traction as well. Upgraded brakes from Wilwood were installed, along with a set of 17” Snowflake wheels from YearOne and new Nitto tires.

Contact the V8 Speed & Resto Shop for all your restoration and performance needs!
314.783.8325 http://www.v8speedshop.com

This is part one of a 3 part series, we’ll install the LS3 V8 in part 3!

Contact us for Muscle Car upgrades and restoration: https://www.v8speedshop.com/contact – 314.783.8325. We’re happy to help!

Part 2: https://www.youtube.com/watch?v=OZCYMvLelwQ
Part 3: https://www.youtube.com/watch?v=WUa4RL6ZRiw

#transam #LS3 #v8speed



Pontiac Firebird Trans Am LS Engine Swap and Suspension Upgrades at V8 Speed and Resto Shop Part 1

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817 S. MAIN STREET – RED BUD, IL 62278



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