Are you talking about the M117 5.6 Liter Maintenance Manuals? The instructions for removing the heads look the same to me. Neither manual tells you which 18 bolts (out of 23) to remove and show the same diagram. They didn’t have 560’s in the 70’s. Or are you referring to the M116/M117 service manual?

All the manuals on eBay claim to only support the 1987 560SEC and not the 560SL. I asked another eBay member today in fact.

After looking at old heads on eBay it seems the cam bolts closest to the exhaust side (outside) are head bolts (5 of them). Then the 4 on the intake side & then the 9 on the outside. I was just hoping someone just knew which bolts and would share, but It seems nobody really knows for sure. It’s been a real struggle to own this car.