At 04:25 PM 4/22/2010, Scott Daniel - Turbovans wrote: >and the heads are not held down by a lot of force, just 8 studs per head, >with nuts torqued to 37 ft lbs. But if you take into account the very small area of the sealing rings compared to the area of an I-4 head gasket, you'll see there is lots of pressure (psi) on those rings. For comparison (for the older amongst us) an elliptical needle tracking at two grams on an LP (vinyl) record exerts something like 150,000 psi on the record at the points where it touches. Yrs, D |
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