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Old 01-10-2010, 09:56 AM
Excaliber Excaliber is offline
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Hmmm, can't offer a specific opinion on this, but some observations.

The Summit link specifically mentions the 221 and 260 cid blocks IF those blocks originally came with hydraulic lifters. Does that mean the hydraulic lifter blocks had a deeper/longer lifter bore than the soild lifter blocks did?

I don't know about the small blocks but bear in mind the 427 blocks came in two styles. Solids ONLY block as well solid OR hydraulic lifter blocks. That might not have anything to do with the lifter bore depth as it may only relate to lifter bore oiling capability (in both small and big block series).

Comp cams position that the lifter bore depth is to shallow should not be easily dismissed by a Summits claim "it'll work".
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