Headswap question

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Apr 29, 2009 | 07:21 PM

05 GSXR 1XXX

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From: Woodlands, TX

Headswap question

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?

Apr 29, 2009 | 08:04 PM

vsocks1

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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!

Apr 29, 2009 | 08:55 PM

GTOFan350

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What did you use to clean them vsocks?

Apr 29, 2009 | 09:49 PM

vsocks1

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Quote:

Originally Posted by GTOFan350

What did you use to clean them vsocks?

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.

Apr 29, 2009 | 10:01 PM

67rsss

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From: Twin Cities, MN

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

Apr 29, 2009 | 10:29 PM

05 GSXR 1XXX

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

Apr 30, 2009 | 09:26 AM

67rsss

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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...

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Apr 30, 2009 | 05:37 PM

01FbTaWs6

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From: Cedar Rapids, IA

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

Apr 30, 2009 | 09:04 PM

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67rsss

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From: Twin Cities, MN

Quote:

Originally Posted by 05 GSXR 1XXX

stock gm bolts.

bump

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...