Have decided to replace the engine in our Sunbird.<br />(freeze damage mentioned in earlier post)<br />Will be purchasing long block overhaul unit.<br /><br />Is removeing and replacing a marine engine any more difficult than R & R ing an automobile engine?<br /><br />Are there any good shop manuals for the do it your selfer?<br /><br />How many hours would a shop take to R and R Including swaping manifolds, oil pan, etc.