All 216's were of the low pressuse/ babbit bearing type. All 216's are pretty much the same. GM also made a low pressure 235 that was basically just a larger bore 216. Beginning in 53 GM started making "Full Pressue" 235's The rule of thumb is that Powerglide cars had hydraulic lifters, and 3 speed cars and all trucks had solid lifters. Beginning in 58 GM started drilling all 235 blocks for Hydraulic lifters, most trucks of that era still utilized solid lifters though. Anyway, I'm getting a little long winded. Go to
www.patricksantiquecars.com, they have a great engine swap guide for the 216/235. They'll even send you a free catalog if you call them.