As in Custom Replacement Automotive Parts. Besides selling alternator mounting brackets for the 352 engine, they also sell other parts. Contact information is: 815-634-8216 OR Larry Gueths at LARRY@CARCRAP.NET
Here is their website. For Ford products, click on the Ford link.
New Alternator mounting bracket information:
Standard 2 piece low mount alternator mtg kit for engines with bolt hole in engine face, Part # 94418, raw no finish you paint $74. Same unit with black powder coating Part # 95239 $89, accommodates FORD OR GM alternators - Clears the 8" dia balancer, fits All FE engines originally equipped with an alternator.
2pc gen 2 alt low mount altenator mounting kit for engines with NO boss or hole on engine face, uses special bracket that mounts to the tapped hole that the generator bracket originally used on side of block, black powder coating accommodates Ford OR GM alternators - clears 8" dia balancer, Fits 332-390 engines. Part # 95240. $129.00
1pc gen2alt low mount polished stainless steel alt mtg kit uses special bracket that mounts to the tapped hole that the generator bracket originally used. Can only accept a Ford or aftermarket alternator in a 1st generation Ford configuration. Part # 92264 $129
Ford started putting the boss and hole on the front of the engine face (to accept an alternator) on some FE blocks in 1962.