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B18B Valves

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Old 04-02-2007, 04:19 PM
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FearTheTruth34
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Default B18B Valves

having a hard time finding b18b valves that are flat topped to raise compression a bit, was curious if b18c valves would fit in the head or not?
Old 04-02-2007, 04:24 PM
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They are not interchangeable.
Old 04-02-2007, 04:32 PM
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FearTheTruth34
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i had that feeling, so any idea where i can get b18b high CR valves or head gasket? its stock 9.2:1 and im looking to get into the 10-11:1 range...dont really feel like touching the block, too much money for too little gains
Old 04-02-2007, 04:40 PM
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Originally Posted by FearTheTruth34
i had that feeling, so any idea where i can get b18b high CR valves or head gasket? its stock 9.2:1 and im looking to get into the 10-11:1 range...dont really feel like touching the block, too much money for too little gains
A thinner headgasket and flat-faced valves aren't going to get the compression that high.
Old 04-02-2007, 04:43 PM
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i realized, id prolly get .5 -.8 higher
Old 04-02-2007, 04:54 PM
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Originally Posted by FearTheTruth34
i realized, id prolly get .5 -.8 higher
...and you probably wouldn't even notice it on the butt dyno.
Old 04-02-2007, 04:57 PM
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mill the head, use a 2 layer headgasket, and high compression valves, and maybe you'll get close to 10-11:1
Old 04-02-2007, 05:21 PM
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i was considering an ls-vtec but i decided just put a new b18b in, and start rebuilding it, i am doing considerable head porting and polishing, 3 angle valve job, cams, new intake mani and cold air, throttle body, header, and greddy exhaust...wanted a high compression to go along with that...
Old 04-02-2007, 05:35 PM
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Originally Posted by FearTheTruth34
i was considering an ls-vtec but i decided just put a new b18b in, and start rebuilding it, i am doing considerable head porting and polishing, 3 angle valve job, cams, new intake mani and cold air, throttle body, header, and greddy exhaust...wanted a high compression to go along with that...
why do all that and not dig into the block?
Old 04-02-2007, 05:55 PM
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Originally Posted by Snoopy
why do all that and not dig into the block?
:werd: build the bottom end and you would/will be alot ahppier with your numbers, but then again why wouldnt you boost the b18b (lower compression of course)



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