pdd

iTrader: (3)

my heads before i put them back on the car?

Dustin 98TA

Sure. Why not? I always use 3M Roloc discs with my die grinder.

pdd

iTrader: (3)

it looks like im getting fine scatches everywhere

cantdrv65

iTrader: (3)

Thats what I used with great results. But you COULD possibly take off too much material....Just be careful and dont stay in one spot for long periods of time....

Screamin_Z

iTrader: (2)

those scratches are normal, it's what happens when u use an abrasive against a softer metal, even with WD-40 as a cleaner/lube and as long as u just get the grit off, don't keep cleaning the same spot. I'd use a fine corse scotch brite pad and clean by hand.

vettenuts

iTrader: (4)

Clean with denatured alcohol when done to remove any WD-40 and get a dry surface. Those scratches are very very small, but under light they look huge. If you worked in one area for 30 minutes I doubt you could even take off 1/1,000th of an inch if you are doing this by hand, which is all that is required.

pdd

iTrader: (3)

yup, by hand. thanks guys, just wanted to be sure how the hell am i suppose to clean the exhaust port? the intake side was easy, i just wiped the oil out with a paper towel, but the exhaust side is loaded with shitty carbon and i cant get my hands in there. just leave it?

Proud2bSS

iTrader: (2)

To clean properly, you need to disassemble the heads (valves, springs, etc.) and then have them tanked at a shop. Frankly, unless the deposits are pretty thick from high mileage, I wouldn't sweat. Even if you make 'em pretty, their just going to get dirty again.

GuitsBoy

iTrader: (4)

Small scratches are fine. Thats what the viton rubber coating is for. I used a #000 machinests stone for a perfectly flat surface on the bottom of my heads and it still left the scuff marks youre talking about. The stock millling marks from the factory are a bigger concern as far as sealing goes, and even they pose no threat.

vettenuts

iTrader: (4)

I'm in the same boat right now and have a set of disassembled 241's I am rebuilding that were my stock heads. The carbon is kind of crappy. An ultrasonic cleaner will get them like new, but not sure who has one in our area. Steve at CTCorvette might know, he is in Avon, CT. I have been looking in the RI and eastern MA area. Heads must be fully disassembled though, which isn't a big deal really.

Screamin_Z

iTrader: (2)

I guess if u wanted to disasemble the head and go buy like a gallon or 2 of some type of degreaser or whatnot (something like seafoam that's ment for removing carbon) that's not harmfull to aluminum and soak them overnight for the exhaust ports. I know many guys who do this to thier stock eaton blower on lightnings and cobras...they also do this on thier heat exchanger, works great.