Im in the process of swapping the heads on my ls block. What is the best way to clean the deck surface and clean off all the old crap from the graphite headgaskets that were on there? I want to keep it as clean and smooth as possible, but the motor is practically new, so i dont wanna tear it down to get milled flat.

it will be seeing boost as well. so would it be beneficial to get the heads o-ringed? They are kinda dirty, so i was gonna have them hot tanked. ill probably have them mill them flat as well while im at it. Anyone got a shop recommendation?

 

A Plastic ice scraper will work.

 

Believe it or not I found a bamboo chopstick that is filed down like a scraper works great.

 

Always used single edged razor blades.... never had a problem...

 

When I did mine I used a plastic scraper set from Harbor Freight to get all the big stuff. And to get it perfect I scrubbed the surface with a Mr. Clean magic eraser with laquer thinner **** works wonders!!!! It does fall apart so just make sure you block all the passages GL

 

Razor blade and it's done.

 

I to used a razor blade, make sure its a new one. Take your time. Some people say light sanding with 400 grit sand paper to get a better sealing surface with MLS gaskets.

 

I have always used a razor blade. it has worked fine a 1/2 dozen times for me thus far.

 

+1 for the razor blade and make sure its sharp!

Just watch your knuckles that aluminum is sharp as hell!!!

A clean non shedding rag with some brake clean for final clean up is all i do.

 

This and 1000 grit sandpaper worked very well.