Dershum Posted January 19, 2012 Share Posted January 19, 2012 I'm looking through the ARP catalog to get the correct part number for new rod bolts, and it has two part numbers. One for "Early" L24 and one for "Late" L24. The block I'm having rebuilt is a P30 with a serial # of 034668. I'm not quite sure what constitutes an "early" or "late" L24, so I was hoping someone could enlighten me so I can make sure to order the right part. Thanks much! Quote Link to comment Share on other sites More sharing options...
rossman Posted January 19, 2012 Share Posted January 19, 2012 (edited) Late L24 rod bolts are 9mm, earlier ones are 8mm. You need to measure them to figure out which ones you have. Edited January 19, 2012 by rossman Quote Link to comment Share on other sites More sharing options...
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