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| valve lash https://slantsix.org/forum/viewtopic.php?t=52955 |
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| Author: | '67 Dart 270 [ Mon Aug 05, 2013 5:40 pm ] |
| Post subject: | valve lash |
I had my '67 slant rebuilt. The long block was delivered last week. The timing card that came with my long block says: Performance 254S grind Duration 254 @ 0.050 212 Lift @ valve 0.435 Lash @ valve 0.012 Only 1 valve lash indicated....so, I asked the rebuilder and they confirmed that the valve lash should be set at 0.012 for both intake and exhaust (hot). I realize factory specs are 0.01 in and 0.02 ex, but has anyone had a cam/rebuild where the valve lash was the same for both in and ex? Does this seem OK; or is the exhaust usually always bigger gap than intake? Just need a reality check here... thanks, BG |
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| Author: | DusterIdiot [ Mon Aug 05, 2013 6:38 pm ] |
| Post subject: | Comp Cam |
It's because comp uses chevy lobes and do not differentiate between the two lobe's ramps on the RV cam, the mopar lobe ramps are a little different intake and exhaust and thus the need for different lash settings (also the exhaust valve heats up faster so a little more lash is sometimes needed there) i have found that the comp 252 prefers a little looser lash .013 or so and it gets very cackly if it's too tight .010. -D.Idiot |
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| Author: | '67 Dart 270 [ Mon Aug 05, 2013 8:10 pm ] |
| Post subject: | Thanks, great... |
OK, just needed a reality check. Thanks so much. B |
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