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<blockquote data-quote="bubblehead93" data-source="post: 1763247" data-attributes="member: 19576"><p>Got word from DCR that the re-ground cams have shipped... wohoo! Should get here next Monday via UPS!</p><p></p><p>Interesting piece, the Manley lightweight rods do not take 6.2L rod bearings... I had a single pair of 6.2L rod bearings laying around and while they physically fit, the tangs are not in the right place, so after installing the 6.2L rod bearings you can see they are not centered in the bore and the bearing halves are offset...</p><p></p><p>Gave Manley Tech Support a call, sure enough, the rods take a 4.6L bearing, they quoted Clevite 1442P... good news because there are more performance options with 4.6L rod bearings... bad because I'm pretty sure I'm going to have to mess around with different size 4.6L bearings to get the oil clearance set right...</p><p></p><p>So 1442P which was a TM-77 bearing was superseded by the 1442A but its a AL-5 bearing... the 1442HN is the currently available TM-77 rod bearing (or 1422HNC if you want a dry coated bearing.</p><p></p><p>So the 1442HN STD specs are...</p><p></p><p>Rod big end diameter: 2.2388-2.2396 inches</p><p>Crank rod journal diameter: 2.0859-2.0867 inches</p><p>Wall thickness: 0.0759 inches</p><p>Width: 0.8270 inches (21 mm)</p><p></p><p>My machinist still has the crank and reports it just needs a polish... so pretty close to stock dimensions...</p><p></p><p>By comparison the TM-77 for the stock 6.2L rod bearing is a 1944H...</p><p></p><p>Rod big end diameter: 2.2388-2.2396 inches</p><p>Crank rod journal diameter: 2.0761-2.0768 inches</p><p>Wall thickness: 0.0758 inches</p><p>Width: 0.8583 inches (21.8 mm)</p><p></p><p>So the crank rod journal specs are a bit different... 0.0091-0.0108", so approximately 0.01"</p><p></p><p>Have a few different sized sets on order (STD, 0.25 mm, and 0.50 mm) to make sure I have what I need... should be here end of the week... take some measurements... does not matter what numbers come out of the catalog, I know the oil clearance I want, so installed inside rod bearing measurements will show me the way...</p></blockquote><p></p>
[QUOTE="bubblehead93, post: 1763247, member: 19576"] Got word from DCR that the re-ground cams have shipped... wohoo! Should get here next Monday via UPS! Interesting piece, the Manley lightweight rods do not take 6.2L rod bearings... I had a single pair of 6.2L rod bearings laying around and while they physically fit, the tangs are not in the right place, so after installing the 6.2L rod bearings you can see they are not centered in the bore and the bearing halves are offset... Gave Manley Tech Support a call, sure enough, the rods take a 4.6L bearing, they quoted Clevite 1442P... good news because there are more performance options with 4.6L rod bearings... bad because I'm pretty sure I'm going to have to mess around with different size 4.6L bearings to get the oil clearance set right... So 1442P which was a TM-77 bearing was superseded by the 1442A but its a AL-5 bearing... the 1442HN is the currently available TM-77 rod bearing (or 1422HNC if you want a dry coated bearing. So the 1442HN STD specs are... Rod big end diameter: 2.2388-2.2396 inches Crank rod journal diameter: 2.0859-2.0867 inches Wall thickness: 0.0759 inches Width: 0.8270 inches (21 mm) My machinist still has the crank and reports it just needs a polish... so pretty close to stock dimensions... By comparison the TM-77 for the stock 6.2L rod bearing is a 1944H... Rod big end diameter: 2.2388-2.2396 inches Crank rod journal diameter: 2.0761-2.0768 inches Wall thickness: 0.0758 inches Width: 0.8583 inches (21.8 mm) So the crank rod journal specs are a bit different... 0.0091-0.0108", so approximately 0.01" Have a few different sized sets on order (STD, 0.25 mm, and 0.50 mm) to make sure I have what I need... should be here end of the week... take some measurements... does not matter what numbers come out of the catalog, I know the oil clearance I want, so installed inside rod bearing measurements will show me the way... [/QUOTE]
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