How badly eoikd the purple power hurt the cylinder bores? Iv got the block tore all the way down and am planning on submerging the whole block in purple power.

What is the purple power for?

Never mind, it's a degreaser. Why not take it to an engine shop and have them put it in their hot tank? Shouldn't be that much of a service charge.

my local engine shop is currently moving shops and has emptied their hot tank and it won't be set back up till spring. He offered to clean it by hand for me but I figured a decent sized bucket to where I can lay my engine block down and fill it with purple power to soak my block and heads would work for now since purple power worked really well last time on soaking my heads and other engine parts during my other motor rebuild.

Just spray and scrub with degreasers for oil dirt and grime. Power wash if possible to really remove the stuff. For rust use muriatic acid from home improvement stores.

It wont hurt the block to much depending how much rust

Not really rusty. Just horribly greasy. Any tips on removing engine paint?

Look-sounds like your expecting s hot tank results doing it at home.That ant happening.Find another shop.This is one of MOST IMPORTANT steps.

Aircraft stripper in aerosol cans. Spray on let soak and water jet it off. Heavy areas may need hit again and with steel wool. Wear gloves!! And dont breathe in

Not sure what you are trying to exactly here but I have to agree with 1Gary that hot tank is the best method for getting a block really clean.

With that said, using a degreaser on the cylinder walls can cause flash rust if they are not coated quickly with a light coating of light weight oil after cleaning them.

I've used Super Clean to clean a few motors externally and I used it to get all the road grime, oil and grease off the K-member and suspension parts on my T/A and that has worked out quite well. On rebuilds that needed internal cleaning I have always dunked them into a hot ultrasonic cleaning tank and ran brushes through the passages to flush them out.

if you think its clean and you get any kind of grease on your fingers, CLEAN IT AGAIN

Once it all clean perffectly, CLEAN IT AGAIN!

Its a real pain in the *** but its a key step!