I'm about to make a trade for a resto-mod 49 GMC 1/2 ton. It has a later model 6 banger that the present owner and I am not sure what it is. I do know I've never seen a valve cover like this one. It has a Quadrajet 4bbl, electronic ign and the bottom pulley has 3 belt grooves. They pulled the radiator to replace the blown electric fan. It's supposedly bolted to a 400 automatic. The truck has been slammed so I couldn't get underneath enough to verify. It does have an open drive shaft and is sporting 15" Cragers and dual exhaust.
Engine pic 1
Pic 2
4bbl Quadrojet
engine bay