243s on an LQ9
03-26-2012, 10:26 AM
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243s on an LQ9 Putting 243s on a LQ9. Cam is a 226/236 .525 110 LSA. What is the largest valve size I can use without PTV issuses. Pistons are not fly cut.
03-26-2012, 07:28 PM
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.052" With a stock gasket and stock heads with that cam doesnt make sense.
03-27-2012, 06:09 AM
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03-27-2012, 01:24 PM
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when talking about piston to valve clearance minimum are .080 int .100 exh, regarding to cam duration, lift and all that stuff, you can't make a rule for all cams, it also depends on cam architecture from factory, how lobes are located onto that cam from fac, you just can not figure or state all cams with same specs are gonna to show same clearances, as some said you have to check by urself, having or not head milled u better check it before u go with that cam.
03-27-2012, 01:52 PM
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you could either get thicker head gaskets or advance/retard cam (depending on what you need) changing push rod length won't work since they're hydraulic.
03-27-2012, 08:58 PM
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Just to through some more variables at ya, went 240/244 613 596 109LSA +2 No flycutting, 64cc heads, GM .051 gasket, 2.04 Intake valve. about .063 clearance. STOCK Bottom LQ9!
