The coolant drain should be all the way to the rear of the block as shown in Otto's pictures. Can you post a picture of what you're seeing, along with the casting date codes on the block behind the starter so we can confirm the date of the engine? Should be a Letter, followed by 2 numerals, then another numeral. Also the casting code low on the passenger side forward of the distributor.
Last edited by klhansen; 06/19/2026 1:01 AM. Reason: added info
