Looking at the rave manual, they state the long water pump bolts need to be coated with loctite 572 thread sealer.

Does anyone know if the silicone gasket makers in a tube would be a suitable substitute?

Or how about teflon pipe thread tape?

 

You would probably be ok with silicone....but I prefer permatex "non - hardening gasket sealer" . oil and water wont effect it.....great for sealing those bolt threads, we use a lot of it here and have good resullts. It wouldnt be a bad idea to use "hylomar" on your waterpump gasket( &/ or frt cover gasket)