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Old 10-12-2017, 01:02 AM   #1
Board Member
Join Date: Aug 2015
Location: Finland
Default How much to shave off from B234F head for NA build?

So, I am currently building a b234+b230 hybrid for winter daily and I am about to take the cylinder head to machine shop.

I was wondering how much I could shave off the head for daily driven NA build, without enlargening the valve reliefs or adjustable cam gears?
1992 | 245 Polar | B230F+T, 19T@1Bar - parts car
1993 | 245 GL | B230FD
1990 | 745 GLT | B234F - parts car for now.
1990 | 744 GL | B200F - Gonna get the B230F+16V in soon.
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Old 10-12-2017, 01:35 AM   #2
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Join Date: Jul 2011
Location: The Ass Cheek Of History

Good machine shop.. or just any in Finland should know
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Old 10-12-2017, 06:10 AM   #3
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Join Date: Nov 2009
Location: NW Georgia

I'm certain the greenbooks call out a limit to cutting on the 8V heads.... but I don't have the books for the B234F. The amount is surprisingly large for the 8V heads as I recall.
Project "cheap thrills" build thread: http://forums.turbobricks.com/showth...67#post4211467

Feedback thread: http://forums.turbobricks.com/showthread.php?t=198746
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