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Dwight Southerland · 03-09-2012, 10:24 PM

I believe that Dennis Oliver had a 283 that we counted almost 3000 runs on the same pistons and rods when a rod bolt finally gave up. That motor ran over 7000 rpm on every run. A 350 would have more strain due to the longer stroke and faster piston speed, but 6500 should be no problem. I would spin my 283 stockers over 8000 on the starting line before clutch engagement with never a piston failure. A stock valve spring retainer split one day and put an intake valve into the piston. The valve was bent into an "S" shape and the piston was beat up, but an xray revealed no cracks in the piston. The same piston was run in the car until I sold all my 283 stuff. In all cases, those were cast GM pistons.

03-09-2012, 10:24 PM	#3
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 2,002 Likes: 64 Liked 783 Times in 195 Posts	Re: stock sbc piston rpm? I believe that Dennis Oliver had a 283 that we counted almost 3000 runs on the same pistons and rods when a rod bolt finally gave up. That motor ran over 7000 rpm on every run. A 350 would have more strain due to the longer stroke and faster piston speed, but 6500 should be no problem. I would spin my 283 stockers over 8000 on the starting line before clutch engagement with never a piston failure. A stock valve spring retainer split one day and put an intake valve into the piston. The valve was bent into an "S" shape and the piston was beat up, but an xray revealed no cracks in the piston. The same piston was run in the car until I sold all my 283 stuff. In all cases, those were cast GM pistons.