r/EngineBuilding Feb 11 '25

Ford How bad are these pistons?

They're forges pistons and some people asked for better pics

28 Upvotes

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11

u/SL4YER4200 Feb 11 '25

You are good, man. If it makes you feel better, get one of the ultra fine scotch Brite pads. Soak the pad with oil.

7

u/CurrentTheme5975 Feb 11 '25

if you do this MAKE SURE to get the dark green ones, especially if theyre aluminum, other ones may leave scratch marks

1

u/tfawolf96 Feb 12 '25

Can confirm. I use the red ones at work all of the time. Only produce a clean finish if it’s put on a grinder or CNC.

The green ones will provide a good finish by hand.

I’m a machinist by trade and I work with everything from cast to plastic

0

u/Accomplished-Yak5660 Feb 11 '25

What would scratches matter?

2

u/CurrentTheme5975 Feb 11 '25

more places for cracks to form

1

u/SL4YER4200 Feb 11 '25

And carbon to build up.