77 Trans Am 400 Vacuum, Fuel, Heater, and Fuel Line Routing

Shown is a 1977 Pontiac Firebird Trans Am with a 6.6 liter 400 CI Pontiac engine with a factory style Quadrajet carburetor. I’m showing the routing for heater core hoses, power steering lines, fuel lines, and vacuum lines.

[@ms79ta]

Thanks. I have a '79 and find this helpful. 👍

[@quetzalcoatul1]

I GOT THE SAME VALVE COVERS. BUT ONE SIDE EMBLEM CAME OFF PRETTY QUICK

[@robertmccully2792]

Look in the service manual under emission's, and then then CA or federal, , 4 barrel,, if you want it all stock. The chances of it not been tamped with is rare. But you doing it right, you can't have too many pictures.

[@maxxmasson4263]

The front hoses are totally wrong and the check valve is missing

[@Daveunruh]

You have a 76 throttle body, and a non-Pontiac 78+ main body, with a correct Pontiac air horn. There’s no way to route these vacuum lines correctly.