supra head gasket questions+ rebuild

[supramacist]

Originally Posted by Andy C

hi, im using 1200 grit fine sandpaper and 3x6 inch block is this ok?
this is about 2 hours work. dont wanna ruin the block.

I did what you are doing and I did it for the better part of 2 weeks.

Wear that paper out on the block and keep sanding. Figure 8's would be good and dont stay in 1 spot for too long. It's going to be hard to mess that block up dude. It's solid.

Rotate your crank shaft to get the pistons down out of the sanding area.
If you shine em up a lil bit it's cool.

Keep a level and feeler gauges. Check this constantly. It'll really help you.
1200 grit will take you a month.

Keep that surface lubricated. I used PB BLaster.
Lucas oil treatment would be a good lube for lapping.
Regular motor oil would be fine as well.

As for the seal kit. It's only going to have the seals for things that bolt directly to the head.
Everything else..., may as well come from the dealership. These seals are cheap enough and order 2 sets for the intake for the retorque.

Now's a good time to replace all the hoses and all of that trash.