Nice brick top.

Nice find! The one on the left is a 1965 model 5233. The only year for that model and shroud. The one on the right is a model 3054, made for two years, 1967 and 68. The model numbers are stamped on the round data plate on the top of the deck right behind the engine, while the engine models will be on a small data plate on the outermost cylinder fin. Both are magnesium deck D-400s. These were some of the best that LB made in my humble opinion, and that's probably why so many of them are still around. Hopefully those decks are solid, the mag decks tend to really get pitted and weak, a bit worse than the cast aluminum in that regard.

Thanks for the info. These are my first D series mag deck ones. I'm used to the steel deck F and V series engines. I really can't stand those lean mix plastic carbs on them. I gotta say I like the D series alot better. The 5233 starts on 1 prime and one pull after adjusting the carb. I like the metal carb and mechanical governor way better. Fitting it's a 65 since I hauled it in the trunk of a 66 Dodge.

Yes those plastic carbs on the later F series engines were very prone to warping and of course the lean surge would follow. It's fairly common to switch out those carbs with the metal Walbro carbs. The early OMC plastic carbs on the F series were much better than the later Toro produced plastic carbs, but yeah givin the choice between the two, I'll take good old metal over plastic any day.