Hey guys whats up. I was checking out my manifold for straigtness the other day and I noticed that all of the flanges were off by a bit, some worse then others.

So I went to a machine shop to get them resurfaced and they wanted 250.00 to do it!!! I have a basic log manifold that only cost 300. SO I backed outta that one...

What do you guys do when your flanges get warped, Can I go at it with a flat file and finish with sand paper?

Let me know if you have any ideas, Thanks.
HT=

 

bumbity bumb

 

You can try just installing it if it isnt that bad. The bolt tension might flatten it out. Anyway it doesn't cost anything to give that a try. You can not really do any thing except make it worse with a file and sand paper. Go to another machine shop, I had some flanges machined flat for $25. 1/2" thick carbon steel isn't that easy to machine, but 250 is rediculous.

 

Great news,!!! I shopped around and found a shop to do it for $100. Way better then the 250 I was quoted...

 

I would look even more dude. it only costs like $25 to get heads and flywheels resurfaced.

 

the problem you have is called thermal expansion... is your flange one solid piece?