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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Aug 2009 Posts: 46 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2009 Posts: 46 | Took my 216 to the machine shop. The result is that the bores are about 10,000 over standard at the top and needs to be bored - needing oversize pistons. He's suggesting I replace the cast iron with aluminum. Is this a good idea? Does it affect the truck after it's rebuilt in that it's no longer all original?
Thanks Kevin | | | | | Joined: Jun 2008 Posts: 1,388 Shop Shark | | Shop Shark Joined: Jun 2008 Posts: 1,388 | I think all you can buy now is aluminum. Unless you found a NOS set on epay.
The value of your truck will increase with a rebuilt engine, that costs money!!!
| | | | | Joined: Jun 2011 Posts: 1,901 Shop Shark | | Shop Shark Joined: Jun 2011 Posts: 1,901 | I think all you can buy now is aluminum. Unless you found a NOS set on epay.
The value of your truck will increase with a rebuilt engine, that costs money!!! I just asked Egge Machine and they confirmed that Aluminum is all they cast now days...
Give me ambiguity
or give me something else
| | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | If you get new ones made by Egge, then ring design will be different with much thinner rings. That is the way they are made now.
Aluminum pistons are much better for your engine. The cast iron ones create a greater loading on the bottom end and that is not a good thing. | | | | | Joined: Aug 2009 Posts: 46 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2009 Posts: 46 | Thanks all I appreciate the advice!! This being my first project and me not being a mechanic...I can use all the help I can get!
Thanks Kevin | | | | | Joined: Feb 2000 Posts: 5,206 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,206 | The correct way to write 10,000 over is , .010". ( 1,000 over is .001" ). This way will save you a few typing strokes.
Joe | | | | | Joined: Aug 2009 Posts: 46 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2009 Posts: 46 | | | | | | Joined: Oct 2006 Posts: 1,847 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 1,847 | there is a reason they don't make cast iron pistons anymore | | | | | Joined: Dec 2008 Posts: 1,922 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 1,922 | He wrote correctly what he thought he heard.
It's not "ten thousand", it's ten thousandths.
One thousandth is .001" | | |
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