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Valve guide clearance question
What valve guide clearance are you guys running for boosted combos on high hp marine builds? 11/32"
Had some issues with my turboed street car and was wondering if the clearance was too tight for my application. |
.0018 int .0020/.0022 exh. Double check that. |
.0012 intake and just under .002 on exhaust and I won't use oil seals on the exhaust just to help lube guides. Who's valve are you using? |
Exhaust valve https://www.cnc-motorsports.com/ferr...600-11-32.html
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I'm assuming aluminum heads bronze guides. |
Originally Posted by getrdunn
(Post 4681842)
I'm assuming aluminum heads bronze guides. |
Originally Posted by 14 apache
(Post 4681828)
.0012 intake and just under .002 on exhaust and I won't use oil seals on the exhaust just to help lube guides. Who's valve are you using? |
Yes no springs and the older seals teflon we would ream them. How is the finish on the stems? And what valve where sticking? |
Not sure on the finish. I attached a few pictures from when I just disassembled. 6&7 exhaust valves were very tight in guide when I disassembled. On a sbf those are the center cylinders on the left bank.https://cimg5.ibsrv.net/gimg/www.off...198063b214.jpg
https://cimg7.ibsrv.net/gimg/www.off...28847b7a7e.jpg https://cimg9.ibsrv.net/gimg/www.off...6a2599a5b1.jpg |
who's cylinder heads?may have cheap guides in there.may have to switch them out for the higher end guides or your gonna have to loosen them up a bit more.
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