JerryVan Posted October 12, 2012 Share Posted October 12, 2012 Working on a 1910, Model 10, and needing an original, cast iron, standard size piston in good condition. 3-3/4" bore size. Hoping to get a usable piston and not have to replace all 4 with new aluminum ones. Nothing against aluminum, just would be nice to replace the one piston and be done on an otherwise excellent engine. Link to comment Share on other sites More sharing options...
Mark Shaw Posted October 12, 2012 Share Posted October 12, 2012 Jerry, I have several pistons from 165 cu in engines. What are the rest of the dimensions? Top of piston to center of wrist pin & skirt length? Link to comment Share on other sites More sharing options...
Mark Shaw Posted October 13, 2012 Share Posted October 13, 2012 Here is a photo of one of the original 3.75" Diameter pistons I have. It is complete with rings rod and wrist pin, but I can remove what you don't need. Link to comment Share on other sites More sharing options...
JerryVan Posted October 15, 2012 Author Share Posted October 15, 2012 Mark,Thanks. The piston I've got is;3-3/4" diameter3-3/4" overall length.760 wrist pin dia. (probably worn from .750)1.450 from piston top to wrist pin center line.190 wide ring groovesI'll try to post a photo as well. Link to comment Share on other sites More sharing options...
Mark Shaw Posted October 15, 2012 Share Posted October 15, 2012 Jerry, My piston appears to have the same number of rings, diameter & wrist pin location, but is a bit longer. It might work OK if you trimmed the bottom until the weights were the same.Your call.. Link to comment Share on other sites More sharing options...
JerryVan Posted October 15, 2012 Author Share Posted October 15, 2012 Mark,I had considered that but I'm a little worried about removing the internal reinforcing flange at the bottom of the piston.By the way, to all who read this, this is what happens when you find it fun to use all original valves in your early cars. This car lost a valve head and punched the top of the piston, cracking it, as you can see somewhat in one of my photos. It also damaged the other valve and both valve cages. It appears that the cylinder wil be o.k..... so far. Link to comment Share on other sites More sharing options...
Mark Shaw Posted October 15, 2012 Share Posted October 15, 2012 I also have spare valves and cages.... Link to comment Share on other sites More sharing options...
JerryVan Posted October 25, 2012 Author Share Posted October 25, 2012 Mark,Haven't meant to ignore you, just exploring options. I've located some of the longer pistons, such as you have. Believe it or not, the longer ones are lighter. I'm trying to figure out whether to go with 4 of them. Link to comment Share on other sites More sharing options...
Mark Shaw Posted October 26, 2012 Share Posted October 26, 2012 Jerry, I believe it you have lighter pistons you will have more available power from your engine.. My 13 Buick has aluminum pistons and gained an estimated 10% more power... just because it is not pushing heavy cast iron pistons. Link to comment Share on other sites More sharing options...
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