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05-24-2012, 06:37 AM
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#1 (permalink) |
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perfection
Join Date: Dec 2006
Member # 83634
Location: calgary alberta
Posts: 202
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8.1L crank pilot bearing to nv4500
ok so putting an 8.1L into my dually wich has an nv4500, the 8.1L has a crank pilot hole to accept a bearing of 1.575" od and has an id of 0.660" but the nv4500 has a pilot shaft od of 0.593" the old style pilot bearing has an od of 1.094"
 serched around the net and came up with nothing, im going to call bearing supliers today and see if they have anything, if anyone has ran into this before i could use the info 
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84 K30 tubed truggy, built 454,465,208, 60-14 5.13s, 18.4x16.1 tractor tires  93 gmc big block solid axle dually tow pig 95 f250 5speed 4x4 7.3 powerstroke tow rig, 5 inch pipe 71 international 1200 4x4 slow build 97 chevy solid axle 4x4 dd |
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05-24-2012, 07:28 AM
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#2 (permalink) |
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Rock God
Join Date: Apr 2003
Member # 19015
Location: Gilroy, CA
Posts: 2,422
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iirc when I put my 465 behind my 8.1 I used the standard sbc/bbc pilot bearing.
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1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and fox coilovers, 8.1 liter 496 bbc/4l80e/BWtcase. DD/towrig |
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05-24-2012, 04:33 PM
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#4 (permalink) |
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perfection
Join Date: Dec 2006
Member # 83634
Location: calgary alberta
Posts: 202
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Ok nevermind
 opend my new bearing from gm and it has the.590 pilot lol delete post haha or for the record the zf6 has the same pilot as the nv4500 and ect 
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84 K30 tubed truggy, built 454,465,208, 60-14 5.13s, 18.4x16.1 tractor tires 93 gmc big block solid axle dually tow pig 95 f250 5speed 4x4 7.3 powerstroke tow rig, 5 inch pipe 71 international 1200 4x4 slow build 97 chevy solid axle 4x4 dd |
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