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Old 02-28-2010, 10:37 AM
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patrickt patrickt is offline
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Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by olddog View Post
I'm very curious here. Is this theoretical or are there indeed solids out there that have a negative lash when they cool off?

Any way I have to say hydraulics would be best in an all aluminum push rod engine. The taller the deck the better the hydraulics look to me.
I was being slightly facetious with the "negative lash," since obviously you can't use a feeler gauge to do that. But the point is real, and this is one time where I, too, am on the hydraulic lifter bus. On certain alloy FE builds, the cold lash will actually be darn close to zero. But this requires an authoritative quote, not just my say-so. So, click here: Aluminum vs, Cast Iron Block
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