question about chamfered bearings
#1
question about chamfered bearings
hi everyone,
my question is, that will a clevite h series chamfered bearing live more than 20,000 miles on a 4340 eagle crank?
the crank calls for them, but i was told a few years ago that h series was desined for racing and not for street use, and i really don't want to have anymore engine probs...
this is going to be an street motor that may see the track 5-6 times a year,
what are your reccomendation? ede? anyone?
thanks
adam
my question is, that will a clevite h series chamfered bearing live more than 20,000 miles on a 4340 eagle crank?
the crank calls for them, but i was told a few years ago that h series was desined for racing and not for street use, and i really don't want to have anymore engine probs...
this is going to be an street motor that may see the track 5-6 times a year,
what are your reccomendation? ede? anyone?
thanks
adam
#2
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Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: question about chamfered bearings
I think they just spec the H series bearings for that crank because the typical usage of a very high performance crank like that would require that type of bearing - high clearance, high RPM, annual rebuilds.
I'd use a normal bearing, maybe a tad large on the clearance, like maybe a .001" oversize.
I'd use a normal bearing, maybe a tad large on the clearance, like maybe a .001" oversize.
#4
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Car: '01 GMC Sierra
Engine: 5.3L
Transmission: 4L60e
Axle/Gears: 3.73 eaton locker
Re: question about chamfered bearings
You could use a standard bearing and use a razor to cut the chamfer yourself.
#5
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: question about chamfered bearings
The chamfer is necessary to clear the radius on the "ends" of the rod journals on the crank. Normal stock cranks don't have that, so replacement-type bearings don't have the chamfer. Only racing ones. Which are typically made of different material, because the requirements are different; their ability to "embed" debris, their hardness, etc. They will live just fine on the street, for alot longer than 20,000 miles, especially if you keep clean oil in the engine.
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Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: question about chamfered bearings
ah. That's what I was wondering as well. From what i've heard they are much softer to absorb the sudden shock loading better. Which tends to let them wear away faster.
*shrug*, high quality filters and good quality synthetic oil I guess. Go nuts!
*shrug*, high quality filters and good quality synthetic oil I guess. Go nuts!
#7
Re: question about chamfered bearings
thats a big 10-4!
after initial startup and valve adjustment we will do the piston ring accel decel, than i will change oil and filter, after 500 more miles a change again, then once 3000 is there i will go to mobil 1 fully synthetic
after initial startup and valve adjustment we will do the piston ring accel decel, than i will change oil and filter, after 500 more miles a change again, then once 3000 is there i will go to mobil 1 fully synthetic
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