Thread: stock flywheel

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smallblock stock flywheel on a 3 speed manual .question how many rpm would u spin it at? safely or what is it rated at?new to this and have heard 100 diff opinions just wondering what the facts are? Thnx all!!

Depends .... On what you want to do with it. I mean what are you using the motor and car for? If it's for the street a good uncracked nodular cast iron flywheel will be fine, if used with the proper clutch and pressure plate assembly. But for your piece of mind, if you use your car for over enthusiastic use, go for a stock demension after market sema approved steel flywheel.

And houz' it in a scatter shield if yer' really goin' nuts

Thnx fellas its a small block around 350 horses that will be used on the street ,burn outs now and then a little on ramp fun ya know the usual probably push it once or twice just to see. i have looked at it pretty good and it doesnt look like a 2 piece cast 1 looks to be solid 1 piece got a pic of it here online ,even had some writing on it( westside perf.)and it has some hairline heat cracks on the surface about a 1/16 th to 1/4 inch long.clutch that was in there looks to be about 60 percent gone.surface of the flywheel feels really smooth. has a stock hei unit that i have been told is gunna have a hard time spoolin up to 5500 or 6000 in gear.I am going to install a rev limiter at 5500 and its goin in the truck pictured to the left . whew lol ( Thnx!!!)

Ok get the flywheel blanchard ground just to take the smooth surface off to avoid clutch chatter and you will get an eyes on second oppinion on its condition.