Moparts

273 wrist pin weight

Posted By: moparmikethree

273 wrist pin weight - 03/03/13 10:19 PM

Does anyone know how much a 273 wrist pin weigh?

Need to gain some weight on balancing a 360. Thanks
Posted By: perfmachst

Re: 273 wrist pin weight - 03/04/13 12:43 AM

hi, 4 bbl 273 pin weighs 184 gms. 2 bbl pin weighs 220 gms. they are shorter than 360 pins. 340 pins are 3.00 inches, 273 pins are 2.80 inches.
Posted By: RapidRobert

Re: 273 wrist pin weight - 03/04/13 01:02 AM

there ya go Michael. I tried to google it & couldn't find anything definitive. I just weighed a KB 360 pin for you to see the difference & it weighed 127 grams. EDIT It's 3" long & ~.117" wall thickness
Posted By: moparmikethree

Re: 273 wrist pin weight *DELETED* - 03/07/13 03:28 PM

Post deleted by moparts
Posted By: dogdays

Re: 273 wrist pin weight - 03/07/13 06:14 PM

In the meantime, how about a steel sleeve that is a press fit in your existing wristpin? Or fill it with lead or a small tungsten slug or Brass or something?

R.
If I had one I'd send it to you.
Posted By: RapidRobert

Re: 273 wrist pin weight - 03/07/13 11:35 PM

Quote:

how about a steel sleeve that is a press fit in your existing wristpin?


You could freeze what your inserting in the freezer overnight & heat the pin to an appropriate temp. You'd want to make sure it's centered when you're done. Not sure on this but might be feasable to thread the ID & screw something threaded in with red loctite. You'd sure think one of those antique car sites would have a line on 273 pins & even an aftermarket one would have to be the heavy variety you need
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