Pontiac - Street No question too basic here!

          
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  #21  
Old 12-04-2019, 10:30 PM
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ponyakr ponyakr is offline
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"...Won all my bracket racing cash and trophies with a cast rod 455 running in the 12s for over a decade, the rods weren’t even rebuilt..."

Ditto.

A rev limiter, set on 5500, saved my 455's, many times.

  #22  
Old 12-04-2019, 10:30 PM
455abody 455abody is offline
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The little end of the rod is to small he said he did not want to enlarge it to fit the pin. I got a good buy and some forged H beams so I went in that direction. Should work out all right

  #23  
Old 12-04-2019, 10:34 PM
tom s tom s is offline
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to me its sounds like the inside of the piston where the small end of the rod goes in is too narrow for a factory cast rod,exactly what happened to me.Tom

  #24  
Old 12-04-2019, 10:39 PM
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Quote:
Originally Posted by 455abody View Post
The little end of the rod is to small he said he did not want to enlarge it to fit the pin. I got a good buy and some forged H beams so I went in that direction. Should work out all right
WOW ! I suppose that's the 1st time I ever read of a shop that wouldn't hone a pin hole, to better fit a pin.

Surely they didn't think .001 would reduce the rod strength enuff to cause a failure.

Have to wonder how many Pontiac engines these guys have built.

  #25  
Old 12-04-2019, 10:50 PM
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PAUL K PAUL K is offline
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Quote:
Originally Posted by tom s View Post
Paul,Racetec did mine and the opening was too narrow to use a stock cast rod.That was with a 428 custom piston.Tom
Common deal with Racetec. Have to be sure to let them know if you're using a factory rod and give them the width and height of the balance pad if the rod has one.

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  #26  
Old 12-04-2019, 10:52 PM
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Quote:
Originally Posted by tom s View Post
to me its sounds like the inside of the piston where the small end of the rod goes in is too narrow for a factory cast rod,exactly what happened to me.Tom
Same issue you'd have using a cast rod with an SD455 style piston. Narrow the rod end and the problem is solved.

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