I have a 261 and want to bolt on a 216 water pump, harmonic balancer, generator and wide belt. I bought the water pump adapter plate. Now I'm having second thoughts. 1st, will the 216 pump keep the 261 cool? Will it flow properly/adequately? 2nd, will the harmonic balancer work properly on the 261? I don't want to break something after spending a couple thousand rebuilding the engine. The plan is not to have a hot rod, but a reliable truck (carryall). Right now I've got a 254 cam, dual progressive carbs, all machine work is done and all new perts for the rebuild. Do I need to balance the engine, since I'm not using the stock balancer?
