Is 138.41mm a slim head for a small turbo cossie?
13-11-2008, 01:33 PM
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sounds very thin to me, check the area around the valves, there will be very little material left.
Read through these 2 threads as well.
https://passionford.com/forum/general-car-related-discussion/264275-yb-head-138-68mm-limit-why.html
https://passionford.com/forum/general-car-related-discussion/264141-the-post-i-never-wanted-to-make.html
Read through these 2 threads as well.
https://passionford.com/forum/general-car-related-discussion/264275-yb-head-138-68mm-limit-why.html
https://passionford.com/forum/general-car-related-discussion/264141-the-post-i-never-wanted-to-make.html
Last edited by RWD_cossie_wil; 13-11-2008 at 01:38 PM.
13-11-2008, 01:45 PM
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its not "very thin",thousands of yb's out there are running happy at 138.4 or below,in fact finding a head taller than this is becoming very difficult,i would fit it with no worries what so ever,regardless of whats said on here!
13-11-2008, 03:41 PM
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i havnt given the go ahead on this yet the chap mentioned he could take the valve back slightly? to compansate the skim... whats peoples thoughts on that? i dont know if he ment for clearance issues which doesnt mater to me as the engines pocketed...
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