grumpyvette Posted June 1, 2004 Share Posted June 1, 2004 http://www.engineparts.com/products/Bearings.html http://www.engineparts.com/motorhead/techstuff/classes/bearings.html The P-Series bearings is Clevite's performance series. Since their development in 1929 these bearings have set the standards that other bearings copy. These bearings are designed to provide winning results, and are used in INDY, NASCAR, ARSA, NHRA and IHRA. Our recommendation is NEVER skimp on bearings. Clevite/77 Engine Bearings -- H-Series Race These bearings were developed primarily for use in NASCAR type racing but are suitable for all types of competition engines. H bearings have a medium level eccentricity. They feature a high crush capacity. Enlarged chambers for greater crankshaft fillet clearance. These bearings are made w/o flash plating for better seating. Use H bearings w/aftermarket performance steel crankshafts that have oversize fillets & where engines run in medium to high rpm range. If you buy a new crank with .125 radii these bearings are a must for rod clearances. http://www.flatlanderracing.com/clevmrbearings.html http://www.engineparts.com/motorhead/techstuff/comp.asp http://www.babcox.com/editorial/us/uhs89734.htm http://www.thirskauto.net/BearingPics.html http://www.jimcookperformance.com/TechNotes/TN%2022.html http://www.babcox.com/editorial/us/us90126.htm Quote Link to comment Share on other sites More sharing options...
wheelman Posted June 2, 2004 Share Posted June 2, 2004 Grmupy, Your timing was perfect with this information. I pulled the oil pan off my LT1 this weekend and checked 2 rod bearings and a main crank bearing. Everything looked like normal wear for an engine with 102,000 miles but there were signs of dirt contamination. The LT1 is from a retired Montana cop car so it's seen some hard usage. My plan is to do a refresh on it. Replace the bearings, rings and timing chain set along with the appropriate gaskets. I'm planning on a cam upgrade also, should I replace the cam bearings while I'm at it? I'll probably have the valves redone also seeing as I'll want to replace the springs when I upgrade the cam. Wheelman Quote Link to comment Share on other sites More sharing options...
A. G. Olphart Posted June 2, 2004 Share Posted June 2, 2004 Grumpy, since you seem to be in the mood to talk bearings, a question: Why do the powdered rods from my (one piece seal) 350 have such wimpy locating tangs? It looks like they would spin with the least excuse; not knowing the logic, the wider/ more substantial tangs used by Mopar and others look better. Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted June 2, 2004 Author Share Posted June 2, 2004 chevys powder rods rely mostly on the bearing crush not the tabs to keep the bearings in place http://www.jimcookperformance.com/TechNotes/TN%2015.html http://www.jimcookperformance.com/TechNotes/TN%2016.html Quote Link to comment Share on other sites More sharing options...
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