have anybody use C.H.P OR PROBE MOTORS OR PARTS are they any good i got me a 557 short block fill with 4340 probe crank and 4340 steel rods and pistons from C.H.P WILL AFTER TWO RUN IT RIP #7 ROD IN 1/2 OUT THE PAN AND BLOCK AND HURT MY NEW KAASE HEADS /CAM /PAN I TORE IT DOWN TO LOOK AT IT THE KASSE OIL PUMP WAS DOING IT JOB GREAT IT WAS NOT A OILING ISSUE THE MAIN BEARING AND RODS WERE FINE
coast high performance/probe industries??
bennettcoe
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79 Posts
LOL SO TRUE !!!!!
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2,426 Posts
What kind of rod was it??...if its got a good ARP rod bolt, that wont help much for cheap a$$ China rod made of inferior metal....just sayin!!
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5,482 Posts
LOL!!They're ALL made in China, except the ones that cost $1500/set.
I can post a pic of the damaged journal on the crank, but it's not very exciting. Motor definitely stopped in short order. There is some heat discoloration. You can see where a rod hit one of the counterweights, but nothing else of note. Any bets on whether or not the crankshaft shop can repair it?
If there was some heat discoloration,,,,,,,,,then that's a pretty good sign that it was spinning a bearing. Now the bearing may have spun due to a broken rod bolt, or a 100 other reasons such as dirt or foreign material imbedded in the bearing.
To me it seems a different story other than my engine was doing fine and all the bearings looked great, and then all of a sudden a CHP rod broke. I have never seen those H-beam rods break without some other factor being the cause or contributing source.
For example, I've seen broken valve springs, eventually break a valve head off, that then destroyed a piston, which in turn broke a 6.700 / 6.800 H-beam rod or twisted it all out of shape and locked up the engine.
Hope this helps,
To me it seems a different story other than my engine was doing fine and all the bearings looked great, and then all of a sudden a CHP rod broke. I have never seen those H-beam rods break without some other factor being the cause or contributing source.
For example, I've seen broken valve springs, eventually break a valve head off, that then destroyed a piston, which in turn broke a 6.700 / 6.800 H-beam rod or twisted it all out of shape and locked up the engine.
Hope this helps,
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1,169 Posts
First, it ain't cheap.
Second, the Chinese invented steel. Western man just took the credit in the history books.
Third, I've used ten of thousands of set with no more breakage, when used in the correct application, than I have American parts, when used for the correct application.
Rods almost never break, not even the stock one, unless abused. For that matter parts almost never break, unless a tuner or builder (or driver) needs to cover his tracks.......
That ought to light this place up for a while.
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5,320 Posts
I agree. Last fall I had a customer break a Scat I beam rod in a circle track engine after 2 seasons of use. Upon inspection I found that the engine had developed a coolant leak which filled the crankcase with water. The oil looked like ready whip in the pan and that's what caused the problem not the rod itself. They are usually the victim yet they often take the blame... The rod was completely black can you imagine what that must have looked like when it was turning 7500rpm when the track was heavy? He was passing a guy for the lead when the fun suddenly stopped...
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79 Posts
how can i post pics here i have a few pics of the mess if someone tells me how to post pics here thanks benny the turd flusher lol
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2,426 Posts
I think you're correct to a point. I've seen some of the lousy quality of many China parts (especially "Pro-Comp" and "Professional Products"), but have witnessed more than a few outright failures of "CAT" brand engine parts.
Steel is steel, but I do think the Chinese cut corners on things like heat treating and porosity.
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848 Posts
Those bearings weren't very happy..
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No kidding. For a motor that was barely run, the scuffing on those journals looks way excessive to me. I'm wondering if the clearances weren't right/wrong viscosity oil or just not properly checked/setup.
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