If the engine is a Tonowanda built small block it will have over spray on the exhaust manifolds with the french locks in place as shown.
Tonowanda small blocks have a T as a prefix on the engine assembly date and WILL NOT have the plug on the front of the block for the oil galleys.
If not mistaken someone on here constructed or milled a set of collets for crimping A/C hoses, they couldn't find the correct look for the finished crimp and ended up making the set needed, if I remember correctly there was little if any difference in the finished crimps. 10 years ago?
Steve Shauger has a 14k mile SSRS L48 A/C car. the pictures under the hood are very nice.