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Original Message
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| Be sure to use... |
| By Dave Shoe - 09/29/2003 8:40:30 AM; IP 216.243.176.34 |
...studs with the rockershaft pedestals, as bolts are torqued high enough th have a nasty effect on the helicoils. I consider rockershaft end support pedestals to be critical in reducing shaft flex, but if you use a stock cam profile, flex may not be a serious issue. Shaft flex becomes a factor with any newer cam designed with steeper lift ramps for use with higher technology valve springs that were simply not available back in the '60s.
Also, be sure to use CJ headers, not 390 headers, as the exhaust port position is different in some cases (the exception is C6AE-R castings are best suited to high-position CJ headers, other 390 Fairlanes and Mustangs are best suited to their respective low-position headers.
Shoe.
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