Lazer etched piston tops

hemidup · 08-19-2010, 12:11 AM

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

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

Jerry,
Who made your pistons?
Larry

hemidup · 08-19-2010, 08:23 AM

Quote:

Originally Posted by Larry Curtis

Jerry,
Who made your pistons?
Larry

Diamond

Jeff Lee · 08-19-2010, 03:11 PM

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

Quote:

Originally Posted by Jeff Lee

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

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.

08-19-2010, 12:11 AM	#1
hemidup Member Join Date: Jan 2010 Location: Minnesota Posts: 409 Likes: 0 Liked 0 Times in 0 Posts	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? __________________ Jerry Williams NSS/A, E/S, PRO E.T. And the "Grandaddy" of Gen III Hemi Performance...The fire inside me still burn's.

08-19-2010, 12:54 AM	#2
Alan Roehrich VIP Member Join Date: May 2006 Location: Murfreesboro TN Posts: 4,930 Likes: 1,003 Liked 1,079 Times in 282 Posts	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. __________________ Alan Roehrich 212A G/S

08-19-2010, 07:24 AM	#3
Larry Curtis Member Join Date: Dec 2009 Location: Bethel MN Posts: 185 Likes: 1 Liked 9 Times in 2 Posts	Re: Lazer etched piston tops Jerry, Who made your pistons? Larry

08-19-2010, 03:11 PM	#5
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 2 Times in 2 Posts	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... __________________ Jeff Lee 7494 D/S '70 AMX

08-19-2010, 08:48 PM	#7
Jeff Teuton VIP Member Join Date: Jan 2002 Location: Houma, LA Posts: 2,717 Likes: 2 Liked 326 Times in 50 Posts	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. __________________ Jeff Teuton 4022 STK