I searched but couldn't find an answer to this....How many drain plugs are on my block for my mercruiser 350? I feel like I remember 4 but it was a while since I drained last year.

Should have 2 in block and 2 in exhaust i believe

2 dead center of the sides of the bolck,you may nees to shove somthing in the hole after their removed to get the sea crap away from the hole so the water could drain..2 in the manifolds,same rule applys. if you have a oil cooler their would be onr in their....pull the hose off of the circulation pump..if you have a vortech intake theirs a plug in the front of the intake under the t-stat housing that will need to be pulled if theirs no bypass hose going to it ..

My engine is bone stock, I found 4 plugs today, 2 dead center and the 2 on the manifolds, where else do I need to look or am I done?