2008 SAN 6.0L MPI - ZR6 390 Cylinder block antifreeze drain plug location

[GregA]

Anyone out there in nautique land that can tell me where my cylinder block drain pugs are and what they look like on my 2008 SAN with a ZR6 engine? I’m trying to change my antifreeze and the manual is very vague. all it says is “Drain plugs on the cylinder block (one on each side)” I found something that looks like a plug but they look to take a huge allen wrench.

[ScooterMcgavin]

This should help. Page 71 of your pcm owners manual there is a diagram. Side note page 69 shows an optional drain kit for those motors, not sure if yours has it?
http://www.planetnautique.com/Correc...08/2008pcm.pdf