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the Low Down on the 2 bolt mains

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Old Jan 28, 2002 | 10:04 PM
  #1  
Greg Kuhlmann's Avatar
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From: Missouri
the Low Down on the 2 bolt mains

im about to buy a 350.. and i have just came across a good one, but its a 2 bolt main.. i heard they just wont take the revs... thats it... what all do you guys know?
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Old Jan 28, 2002 | 10:19 PM
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ViciousZ's Avatar
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From: Hayward, CA
Car: 91 camaro
Engine: 383
Transmission: T56
They are ... underrated IMHO. Most of what I've read says they're good for about 400 hp.
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Old Jan 28, 2002 | 10:24 PM
  #3  
No4NJunk's Avatar
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From: Greenville S.C.
Car: 87 Grand National
Engine: 3.8 SFI Turbo
Transmission: BRF 200R4
If your that worried then just have the main caps splayed. This is the strongest method of getting a four bolt main. The new outer two bolts go into the block at an angle. This will make yours stronger than factory four bolts.
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Old Jan 28, 2002 | 10:29 PM
  #4  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
I have a 2 bolt 355 sitting under my tuned port fuel injection and even though I don't know how much HP it's making I can tell you this, I've revved it to 5,500 Rpms many times and haven't had any problems.
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Old Jan 28, 2002 | 11:34 PM
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Ragin'87's Avatar
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From: Katy, TX
Unless you're going to be making a crazy engine, and putting a power adder(and not just a little one, I mean S/C or Turbo AND NOS).. dont' worry about it. it the engine is built right, and you're staying under 400hp area, with some serious torque. a two bolt main cap isn't going to just fly off and ruin everything.


Anthony
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