05 GSXR 1XXX

iTrader: (16)

Have some heads going on my z28 this weekend, wondering if i should clean the carbon off the pistons while i have the heads off..

car has 107k miles

Clean them or not to clean them?

vsocks1

iTrader: (6)

I would definately clean them....I assume they will be real dirty!!
Here is how mine looked with only 10,000 miles...




And here they are cleaned up!

GTOFan350

What did you use to clean them vsocks?

vsocks1

iTrader: (6)

I left the old lifters & trays in until after the cleaning, plus stuffed rags in the lifter trays. I did each cylinder one at a time at TDC. I used denatured alchohol with non metallic scotchbrite pads and scrubbed my butt off. It will take you 4-6 hours to do it right....don't get discouraged...take a break and come back at it! After you are done....do it again and wipe each cylinder with a clean rag as you rotate the engine to remove any loose debris. When all is clean take a rag with fresh oil and wipe down cylinder walls.

67rsss

iTrader: (4)

Wow, about two threads down we just answered the same question...
https://ls1tech.com/forums/generatio...f-pistons.html

05 GSXR 1XXX

iTrader: (16)

no he asked what to clean with, i just want to know how many people rec cleaning them while havin the heads off.

67rsss

iTrader: (4)

I can't imagine being in there and not cleaning up the carbon deposits. I would highly reccomend you clean everything really well. Also, make absolutley certain that you clean out the bolt holes really well. Get EVERYTHING out of them, it takes a while, but if you don't, you are buying a new block real soon. Are you going with the ARP bolts or a new set of stockers? We used stock bolts, but I will tell you that getting the final torque angles is not terribly fun.
Remember too that that carbon build up can cause hot spots and pre-ignition...

05 GSXR 1XXX

iTrader: (16)

stock gm bolts.

bump

01FbTaWs6

iTrader: (12)

i would def. recommend arp head bolts bro, so much nicer and easier!

67rsss

iTrader: (4)

I agree with teh stockers. Unless you plan to pull heads a few times, the cost of the ARP's is prohibitive. Just take your time and ensure you get the bolts tightened correctly...