70 lt1

[James S.]

I've been told the half shafts should be shot peened on my car. The judging books says nothing of it. Can someone give me a correct answer to this. Thanks.

[Alan S.]

Re: 70 lt1

Hi james,
I was fortunate to attend the Advanced Judging Seminar at the Charlotte Regional the end of last week and fact that LT-! and bb half shafts were shot peened, and how that affected their strength and appearance, was briefly discussed as an aside while looking at a 69. I believe it was mentioned that tiny pieces of course cut wire was used as the medium.
Regards,
Alan

[James S.]

Re: 70 lt1

Do you know of anyone that can perform that service??

[Patrick H.]

Re: 70 lt1

I've had it done by an engine rebuilding shop.

[Terry M.]

Re: 70 lt1

I printed the word-for-word specifications from the Chevrolet prints on this board more than once. Seek and yea shall find.

[Mark C.]

Re: 70 lt1

Hi Jim. You should have planned to come to Charlotte. Lots of good examples to look at there. It was a really nice show once again. Your in the right place for answers. Tell the family hello from us! Cya buddy!😎

[David S.]

Re: 70 lt1

Do you know of anyone that can perform that service??

I'd check with Bair's Corvettes or Quanta.

Best,
Dave

[Alan S.]

Re: 70 lt1

Hi,
I was curious as to just what the specification for the finish on the half-shafts Terry referred to was.
I found this:
"SHOT PEEN BOTH ENDS TO INTENSITY OF .014-.017 ARC
HEIGHT ON ALMEN "A" TEST STRIP. PEEN WITH .032-.035 DIA CONDITIONED
CUT WIRE SHOT."
Now I know exactly what the appearance should be, and how to duplicate it.
Or maybe not.
Regards,
Alan

[Paul O.]

Re: 70 lt1

Here is a company in North Carolina and other locations. You could check with them to see if they do cut wire shot peening. If they do not they may know of a company that does. Remember the shafts were peened only from around the welds ans shaft not the ends.

http://www.nationalpeening.com/locations-0

[Mark D.]

Re: 70 lt1

Alan is correct...it was performed using cut wire shot. The process erased evidence of the HAZ. There is a fellow, in Ohio, that does a beautiful job replicating the look. His name is Greg Gorniak and his number is 937-369-5519. Regardless of the the fact he is an airline pilot, he still does a great job:-)

[Bill C.]

Re: 70 lt1

All hail the great brotherhood of the Bernoulli Principle !!!

For without it - shipping packages across the great pond would take a very long time.......

[Paul O.]

Re: 70 lt1

Do not forget Thud's 1st Law of Opposition: "If you push something hard enough it will fall over".

[Alan S.]

Re: 70 lt1

Hi,
Is this a shot peened finish?
Regards,
Alan

[Mark D.]

Re: 70 lt1

All hail the great brotherhood of the Bernoulli Principle !!!

For without it - shipping packages across the great pond would take a very long time.......

ol' Danny Bernoulli was a nice guy. I think they lived just down the street from the Thud gang.

[Dave S.]

Re: 70 lt1

Do not forget Thud's 1st Law of Opposition: "If you push something hard enough it will fall over".

2nd law of opposition: If one looks at something long enough it will get better looking.