Hi all,
I just put the engine back together after replacing my 0331 head with a replacement from Promaxx (formerly Alabama Cylinder). I started it and let it run for about 10 seconds before deciding that something wasn't right. It shook and sounded really uneven. Maybe a cylinder (or two) isn't firing or something is wrong with the valves? I'm not sure how to diagnose what the issue is.
In addition, even after 10 seconds, there was a little white smoke hovering above the engine. Could this be the coating burning off my new exhaust manifolds and painted exhaust downpipes (again, after only 10 seconds)?
Some other potentially relevant facts:
1. New NGK plugs
2. Old injectors (worked perfectly before)
3. New exhaust manifolds (Borla)
4. Promaxx head, with original rocker arms and lifters; all replaced in original order and torqued down per FSM
I just put the engine back together after replacing my 0331 head with a replacement from Promaxx (formerly Alabama Cylinder). I started it and let it run for about 10 seconds before deciding that something wasn't right. It shook and sounded really uneven. Maybe a cylinder (or two) isn't firing or something is wrong with the valves? I'm not sure how to diagnose what the issue is.
In addition, even after 10 seconds, there was a little white smoke hovering above the engine. Could this be the coating burning off my new exhaust manifolds and painted exhaust downpipes (again, after only 10 seconds)?
Some other potentially relevant facts:
1. New NGK plugs
2. Old injectors (worked perfectly before)
3. New exhaust manifolds (Borla)
4. Promaxx head, with original rocker arms and lifters; all replaced in original order and torqued down per FSM