# Oversize piston availability for 50 year old car

**URL:** <https://community.cartalk.com/t/oversize-piston-availability-for-50-year-old-car/121747>\
**Category:** Maintenance/Repairs\
**Created:** [July 27, 2018, 12:49am UTC](https://community.cartalk.com/t/oversize-piston-availability-for-50-year-old-car/121747 "2018-07-27T00:49:13Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\
**Post date:** [July 28, 2018, 1:33am UTC](https://community.cartalk.com/t/oversize-piston-availability-for-50-year-old-car/121747/21 "2018-07-28T01:33:34Z")

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One major problem with turning down say an .040 to .020 involves cam ground pistons.

The average machinist can turn them into perfect circles only unless they’re set up with some very expensive CNC machines.

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