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Author Topic:   bearings
posted September 22, 2004 07:45 PM
been runnig clevite 77 bearings, could anyone tell me about the race bearing they make should I be running them. Building engine and was just needing some opinions. Thanks

posted September 22, 2004 08:22 PM
i personally use king bearings if you are going to use 77 then I recomend running the H bearings they are tougher and take more pressure than thwe standard P bearings

if every thing is under control your not fast enough

posted September 22, 2004 10:54 PM
I agree with zeroracing,It depends on how hard you are on the motor. P series bearings are softer than the H series,so if you turn your engine pretty hard or tow a heavy trailer,or lots of compression,you will need the H series for longevity. The downside to the H series is, if you use a stock crank (cast) the harder bearing will wear on the crank faster. Also the H series is chamfered for the more radius crankshafts. sleepy

posted September 24, 2004 10:32 AM
Have had several engines with Kings in them that I tore down for freshening & have always been pleased. Their quality is hard to beat. Childs & Alberts are good also but I haven't run those for a few years. The H bearing is the one to use if you a 77 fan. The cost for one type vs the other is one of those "it's gonna cost ya now or later" deals. The softer bearings will collect & absorb foreign particals easier but the crank pays the toll. So with that being said filtering & routine oil changes are a must. I use Valvoline with 1 quart of Lucas.

posted September 25, 2004 07:45 AM
I like to use the P series on the mains and the H series on the rods. This way any debre gets caught in the "softer" bearing before it hits the harder bearing. I don't use the Ps on the rods because the babbit flakes and moves...too much power I guess.