.30 over or .40 over

[AndrewLinderman]

Alright guys tough decisions. I have a 7.3 tidi. I pulled it and found it to be .30 over. Pistons are cracked so I need new ones. I could get .30 over but they are super expensive($1000+)and just hone it. Or I could go get it machined to .40 over and get pistons for about $400. Or I could sleeve it and find some standard size pistons. Any input or recommendations is appreciated. I am planning on going with maybe russe’s wheel upgrade on turbo or rnd idi stage 1. I will be running head studs and other supporting mods. Thanks for the input.

 

[gandalf]

If it were my engine I would not go 40 0ver. The cylinder side wall thickness is not sufficient to allow that. You would be making the side walls too thin, too subject to failure. Given a choice I would sleeve it down to standard size. I would consider that a more reliable engine, and reliability plays a large part in my decisions.

 

[AndrewLinderman]

https://goturbo.net/mhl2243512ha030-mahle-oe-navi-7-3l-idi-turbo-dsl-v8-t-030-w-pc-piston-set-set-of-8-2243512ha030.

I found these pistons which would be the cheapest option but website is sketchy. Like only having the same picture for all pistons and not having much information. If anyone knows if this website is legit or not please let me know.

 

[hacked89]

Max spec is .030 over. I have a .040 over engine, I’ll grab you a pic.

 

[hacked89]

Here you go, all it’s good for.

You must be registered for see images attach

 

[Nero]

That's about what my dusted engine looks like

 

[Clb]

Fukk glazebreaking a 1k set of pistons...
Why the 3 fold difference?
Machine work should be cheaper than what you are looking at for piston $$$????

 

[AndrewLinderman]

finding pistons for the turbo idi that big are very rare so it’s hard to find anything at a good price.