Thread: 92 mm crank in stock bore?

I already bought a Mazworks 92mm crank for a 2.4 VE project that is sorta stalling out right now. I recently developed rod knock (very faint, but I can hear it). Since I haven't been able to get my block sleeved (current tightness of funds), and likely won't have the extra funds till next year I am considering this crank with all new bearings and running it like that for now.

2 questions:
1.) Has anyone tried this yet, or is it a bad idea?
2.) Are there any other complications I need to be aware of in attempting this?

I was just thinking about this. I figured that piston-valve clearance would become an issue unless you had deeper valve reliefs. I could be wrong though. I'll keep my eyes on this!

Have you considered a quick and dirty "ghetto" rod bearing replacement to help you shine it on for a while? If done properly (not too hard) it is a permanent fix for light rod knock.

To answer your questions. No it's not a bad idea. Do you already have the shorter rods to go with it though?

It's not a bad idea, but I don't think it worth it just to get an extra .140 liter or 2.140 liter total.

I would sale the crank to somebody with who is also going with a big bore.

I have a set of Tomei rods, but I am pretty sure they are stock length. I was going to use them in the big block build. I didn't realize this crank would require different rods.

I would use the stock size rods; but use different pistons. Either way, you should gain some power.

Yah it's either 3mm shorter rods, or a piston with the wrist pin located 3mm higher. I guess the custom pistons are way more economical and more commonly used for that reason. Sorry, didn't mean to scare you.

I was planning to use SR16 N1 pistons with this. Am I looking at clearance problems?

Ooops, typing at the same time as Ben so I guess the pistons are out

You will not be able to use your rods unless you get a custom piston, and if you want to keep stock pistons you will need a custom rod. Also the increase in displacment/hp will be there, but no where near as much as a big bore w stock stroke. Because when you bore a motor your allowing it to flow better aswell. I personally wouldn't do it. Id wait till you have the money to sleeve the block. Or sell me the crank and use that money to sleeve.

Plus your r/s ratio would suck with stock pistons and shorter rods. If you do do it, get a custom piston with a higher pin height made to match, then use your tomei rods..

edit: ahh you beat me to it cory