I have a 1958 450 GMC ( Pictures posted in the gallery.) I'm slowly pulling the nose off to work on the engine ( distributor don't move when engine turns & you cant turn the distributor by hand ) No big loss pulling the nose off even if it's a minor fix on the engine. I want to get behind all the tin & fix/undercoat as I go. Been soaking all the bolts with a cotton ball soaked in Kroil for a few days & so far everything has come apart easily/no breakage. Back to my question about numbers.. Mooching around in the cab I found a sticker saying the engine had been partially replaced & to use Part # 2345853 when ordering parts. Does this number mean anything to anyone? I'm proceeding under the idea this engine is a 302 in line 6 cylinder & I want to run it. If the engine in the truck is no longer a 302 I have a line on a fine running International school bus with a 345 & Allison Automatic transmission....
