It was quickly decided that a complete mechanical overhaul was a necessity. With orders to add a lot more power, enhance handling and freshen the interior, we began tear down on this customer project in the summer of 2015. It's going to be a sleeper, keeping the original look and paint of the classic Pontiac. The Hooker Aerochamber mufflers and new Crager wheels are the only hints at what's hiding under the hood.
|BEFORE: 1973 Pontiac 400 smog motor, stock
|BEFORE: 1973 Pontiac Grand Am: broken front facia
|The seats have seen better days. Mice and mold are eating the upholstery away bit by bit. All new interior is on the way!
Let the work begin!
|Engine is removed and mechanical dis-assembly is under way
|Pontiac 400 removed from the Grand Am
|Disassembly in progress, headed out for machine work
|The Pontiac 400 is finished with machine work and ready for assembly and paint
|Pontiac 400 ready for assembly and paint
|The Pontiac block gets a fresh coat of paint
|Assembly of the Pontiac 400 including aluminum heads
|Assembly nearing completion
|Pontiac 400, fully re-built and ready for dyno testing
|Dyno day set up
|Tuning and warm up on dyno day at Advanced Engine Concepts
|The owner of the car is happy with his results!
|The re-built Pontiac 400 now makes 475 HP and 515 ftlbs torque!
|The re-built Pontiac 400 is installed into the re-painted engine bay after being broken in and hitting awesome test numbers on the dyno!
|This Grand Am engine and engine bay smelled more like a mouse nest than anything close to a car
|AFTER: The '73 Grand Am engine bay with fully rebuilt Pontiac 400, A/C upgraded to efficient pump, electric fan, headers, Demon carb and many new mechanical features
|Repaired front facia, she's ready for the road!
|The new wheels and interior finishes compliment the updated mechanical work
|1973 Grand Am interior, cleaned, new vinyl seats and cushions, new gauges fitted into original dash cluster and best of all... no more mice!