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B20/B30 Bolt Thread Pitch and Size? 140-160

posted by  Caliban on  Sun Jan 11 16:24 CST 2009
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last visit: Sat Aug 11 14:05 CST 2012
[RELATED]

An easy question for anyone that has torn a B20 or B30 apart: What are the bolt sizes and thread pitches for these fastners: head bolts, main cap bolts, and rod bolts and nuts? Note: I am looking for the SAE stuff found on the pre-'74 engines. I need to tear into my B30 (again...) and I would like to replace these fastners. I checked with the dealer and the dealer claims all are NLA. The numbers I can find are:
Head Bolt: 191523
Main Cap: 942852 or 945799
Rod Bolt: 415223 or 463090
Rod Nut: 191410 or 463643
Thanks!
Nick






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