How Can I Fix These Pistons?
Thread Starter
Tech Contributor
Joined: Aug 1999
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From: At my Bar drinking and wrenching in Lafayette Colorado
How Can I Fix These Pistons?
I was noticing that 3 of my spark plugs would foul a little, so I pulled the pistons out of the bores to see what was going on. Do these pistons look like they can be fixed? I was thinking maybe bonding some aluminum sheet metal onto the skirts and buying some special rings of some kind to make them seal again. Should I oil the piston pins with anything special before I put them back in? What type of rings do I need with these pistons after I fix them? I’m thinking a good bead blast will clean them up, but what do I do about the ring grooves…? Will JBWeld work? The third one shown doesn't have a top ring anymore. Will it work as a single-ring piston?
After I fix them, I was thinking I should cut down on the 300-horse shot of nitrous, 32 pounds of boost and back off the timing a little. Any other suggestions? If all else fails, I'll put them on eBay as original Corvette pistons - watch for the ad.
After I fix them, I was thinking I should cut down on the 300-horse shot of nitrous, 32 pounds of boost and back off the timing a little. Any other suggestions? If all else fails, I'll put them on eBay as original Corvette pistons - watch for the ad.
Last edited by lars; Oct 9, 2010 at 07:24 PM.
Thread Starter
Tech Contributor
Joined: Aug 1999
Posts: 14,382
Likes: 6,401
From: At my Bar drinking and wrenching in Lafayette Colorado
I didn't show a forth piston, because there wasn't anything left to take a picture of. Since the piston wasn't there, the plug wasn't fouling, so it must be good. I'll just leave that bore without a piston, 'cause that seemed to work pretty good.
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Burning Brakes
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