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#73344 02/16/2007 7:53 PM | Joined: Jan 2007 Posts: 23 Apprentice | | Apprentice Joined: Jan 2007 Posts: 23 | CAN ANYONE TELL ME IF THE CRANK ON A 283 & A SMALL BLOCK 400 ARE SO DIFFERENT THAT THE FLYWHEEL(PRESSURE PLATE STYLE)ON THE 283 WILL OR WILL NOT FIT THE CRANK ON THE SB 400? SB 400 IS A 1973---283 IS A 66 OR 67---3 ON A TREE IN THE TRUCK HELP!!!! THANKS RAY
Ray K.
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#73345 02/16/2007 8:03 PM | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | It may physically fit, but it will be imbalanced on the engine. It will shake. Brian | | |
#73346 02/16/2007 8:39 PM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | The 400 fleywheel is externally balanced, as is the harmonic balancer for it. If you're going to use a 400, you will need the correct flywheel and balancer for it. Check with Summit or Jegs if you canot source one out, they carry aftermarket flywheels for that engine.
Bill Burmeister
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#73347 02/16/2007 8:40 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | The 400 has balance built into it. Like Fleetside says it will vibrate. I have seen in catalogs a adapter that goes between the flywheel & crank with the weight on it. The idea doesn,t sound good but manual flywheels for 400 are hard to find & expensive.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
#73348 02/16/2007 9:08 PM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | Sorry, I meant to say that the crank is extenally balanced, not the flywheel.
Bill Burmeister
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#73349 02/16/2007 9:09 PM | Joined: Sep 2003 Posts: 2,384 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 2,384 | Seems yrs ago I put a flywheel in a Malibu for a guy who had installed a used 400 using the OE 350 flexplate(was an automatic). IIRC it shook pretty hard, you wouldn't want to drive it. I have only seen one 400 powered '78 Camper Special that had a 4 speed, most all 400s were autos like Wrenchbender wrote. I think an aftermarket is available & not too awful spendy(less than $200 I think). Check on Summitracing. Brian
I just checked they are $229 @Summit, inflation I guess. | | |
#73350 02/16/2007 10:53 PM | Joined: Jan 2007 Posts: 23 Apprentice | | Apprentice Joined: Jan 2007 Posts: 23 | Thank you fellows for the reply's. think i'll just put the $ into repairing the 283 for now. will put the 400 on the back burner for a while.you have taught me a great lesson; check with you guys instead of the igits at work! thanks again, Ray
Ray K.
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#73351 02/16/2007 11:15 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Many years ago I put a 350 in a Caprice that had a 400 not knowing about it. After figureing it out I knocked the weight off the flexplate & it worked fine. Not to long ago a friend of mine was asking me about the vibration in the engine in his step van. He happened to mention it started after he had a new flexplate put in. Shure enough I got under it & they had put in a 400 or 454 flexplate. I had to go in with the torch to get this one off but that solved it. Back when I was in business a guy had to eat his own come backs.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
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