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hemidup 08-19-2010 12:11 AM

Lazer etched piston tops
 
Finally got our pistons for the DP. I asked that the correct part number be stamped on the piston face. Instead I get '5.7 Hemi' with the NHRA logo lazer etched on it. ???? The job number that is stamped on the bottom reflects that the piston is correct to the card. Idea's anyone?

Alan Roehrich 08-19-2010 12:54 AM

Re: Lazer etched piston tops
 
My JE's have the JE logo, the NHRA logo, and the part number laser etched into the tops. All of them. It stays pretty well, too. There's nothing stamped on them. My CP pistons had the part number stamped into them on the dome, and nothing else. I could have done it with a set of number and letter stamps.

Larry Curtis 08-19-2010 07:24 AM

Re: Lazer etched piston tops
 
Jerry,
Who made your pistons?
Larry

hemidup 08-19-2010 08:23 AM

Re: Lazer etched piston tops
 
Quote:

Originally Posted by Larry Curtis (Post 204995)
Jerry,
Who made your pistons?
Larry

Diamond

Jeff Lee 08-19-2010 03:11 PM

Re: Lazer etched piston tops
 
Pistom mfg's went to that format as the old style of using a machinist number punch was to easy to replicate. If you had a cheatin' heart that is...:(

hemidup 08-19-2010 07:53 PM

Re: Lazer etched piston tops
 
Quote:

Originally Posted by Jeff Lee (Post 205086)
Pistom mfg's went to that format as the old style of using a machinist number punch was to easy to replicate. If you had a cheatin' heart that is...:(

Thanks Jeff, If NHRA is happy with the NHRA logo etched in the piston top instead of a stamped number, then I'm a happy camper.

Jerry

Jeff Teuton 08-19-2010 08:48 PM

Re: Lazer etched piston tops
 
There was some problems with the stamping on all the pistons and maybe still is. I think NHRA is aware of the problem. Some of the numbers in the specs were job numbers and not part numbers, and Diamond uses a different system for the .030 and .060 etc.


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