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AZKCMale Offline
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Post Icon Posted: May 06 2005,7:53 am Post # 1 see this member send this member a private message  quote this post in reply
OK I've got some numbers off the piston I'm trying to match, looked around a little but not much luck.

You guys try.... :stupid

1010 6436 #7 GM

Thats all I see but we all know about me and seeing things :banghead

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Post Icon Posted: May 06 2005,8:29 am Post # 2 see this member send this member a private message  quote this post in reply
I can't find it, probably an aftermarket?????, :stupid  just measure the dome and get the same thing, it all has to be balanced again anyhow!.. :good
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AZKCMale Offline
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Post Icon Posted: May 06 2005,9:40 am Post # 3 see this member send this member a private message  quote this post in reply
Which one did you copy paste from HB or Dougs :comp :D  How the hell do ya measure the dome and can I not match the weight to one of the other piston rod assmblies :stupid

How do ya tell if its cast or forged?

Doesn't the GM make it OEM?

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Post Icon Posted: May 06 2005,9:43 am Post # 4 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,9:40 am)
Which one did you copy paste from HB or Dougs :comp :D  How the hell do ya measure the dome and can I not match the weight to one of the other piston rod assmblies :stupid

How do ya tell if its cast or forged?

Doesn't the GM make it OEM?

What, you don't have a graduated cylinder and plate to do a CC measurment??? :D  

Since they are flat tops, I wouldn't think that the valve reliefs are more than a few CC's worth of volume.

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GoFastRacerMale Offline
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Post Icon Posted: May 06 2005,10:06 am Post # 5 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,10:40 am)
Which one did you copy paste from HB or Dougs :comp :D  How the hell do ya measure the dome and can I not match the weight to one of the other piston rod assmblies :stupid

How do ya tell if its cast or forged?

Doesn't the GM make it OEM?

Ok just took another look, you don't have a dome, never seen those before, they may be a truck piston :stupid That is cast for sure but the easy way to tell is a cast piston has a metal support in the casting aroung the wrist pin, a forged don't, not to mention a cast piston looks like shit, :laugh You can match the weight but you will have to take a piston off one of the other rods to do that!.. I'd take one over to Larry and see if he knows what it is, he deals with that stuff on a daily basis, I'm sure he's seen those before, I just use normal stuff!. :D I know what I would do though!.. :)  :D
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AZKCMale Offline
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Post Icon Posted: May 06 2005,10:21 am Post # 6 see this member send this member a private message  quote this post in reply
Quote (Sleek-Jet @ May 06 2005,9:43 am)
Quote (AZKC @ May 06 2005,9:40 am)
Which one did you copy paste from HB or Dougs :comp :D  How the hell do ya measure the dome and can I not match the weight to one of the other piston rod assmblies :stupid

How do ya tell if its cast or forged?

Doesn't the GM make it OEM?

What, you don't have a graduated cylinder and plate to do a CC measurment??? :D  

Since they are flat tops, I wouldn't think that the valve reliefs are more than a few CC's worth of volume.

I was just going to use Saran Wrap and a measuring cup that should get me close :break  :D

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AZKCMale Offline
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Post Icon Posted: May 06 2005,10:26 am Post # 7 see this member send this member a private message  quote this post in reply
Got a part number from one of our parts suppliers, just need to figure out if its cast or forged, the number crossed to either or :stupid Forged was a L2377F Cast is a H661CP .

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Post Icon Posted: May 06 2005,10:37 am Post # 8 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,11:21 am)
Quote (Sleek-Jet @ May 06 2005,9:43 am)
Quote (AZKC @ May 06 2005,9:40 am)
Which one did you copy paste from HB or Dougs :comp :D  How the hell do ya measure the dome and can I not match the weight to one of the other piston rod assmblies :stupid

How do ya tell if its cast or forged?

Doesn't the GM make it OEM?

What, you don't have a graduated cylinder and plate to do a CC measurment??? :D  

Since they are flat tops, I wouldn't think that the valve reliefs are more than a few CC's worth of volume.

I was just going to use Saran Wrap and a measuring cup that should get me close :break  :D

Damn wish I could afford all that high tech equipment!.. :eek  :laugh
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GoFastRacerMale Offline
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Post Icon Posted: May 06 2005,10:39 am Post # 9 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,11:26 am)
Got a part number from one of our parts suppliers, just need to figure out if its cast or forged, the number crossed to either or :stupid Forged was a L2377F Cast is a H661CP .

The compression height is probably the same but I bet the configuration won't be!.. :stupid
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AZKCMale Offline
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Post Icon Posted: May 06 2005,10:40 am Post # 10 see this member send this member a private message  quote this post in reply
Configuration??

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Sleek-JetMale Offline
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Post Icon Posted: May 06 2005,10:46 am Post # 11 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,10:40 am)
Configuration??

Valve reliefs and ring lands I'm thinking??

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GoFastRacerMale Offline
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Post Icon Posted: May 06 2005,11:13 am Post # 12 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,11:40 am)
Configuration??

Yeah, the top ain't going to look like this!. :)

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AZKCMale Offline
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Post Icon Posted: May 06 2005,11:31 am Post # 13 see this member send this member a private message  quote this post in reply
Well it will have one valve relief for sure by description. Trying to locate one locally to compare. :)

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AZKCMale Offline
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Post Icon Posted: May 06 2005,11:33 am Post # 14 see this member send this member a private message  quote this post in reply
Quote (GoFastRacer @ May 06 2005,10:06 am)
That is cast for sure but the easy way to tell is a cast piston has a metal support in the casting aroung the wrist pin, a forged don't, not to mention a cast piston looks like shit, :laugh

I remember those steel plates from the last motor I junked they are still laying in the bottom of the Milidon pan :break

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GoFastRacerMale Offline
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Post Icon Posted: May 06 2005,11:38 am Post # 15 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,12:33 pm)
Quote (GoFastRacer @ May 06 2005,10:06 am)
That is cast for sure but the easy way to tell is a cast piston has a metal support in the casting aroung the wrist pin, a forged don't, not to mention a cast piston looks like shit, :laugh

I remember those steel plates from the last motor I junked they are still laying in the bottom of the Milidon pan :break

Yep, those would be cast pistons!. :D
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Post Icon Posted: May 06 2005,11:40 am Post # 16 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,12:31 pm)
Well it will have one valve relief for sure by description. Trying to locate one locally to compare. :)

Ya know, if you go to one of those "fleet" rebuilder places I bet they would have them on the shelf, just thought of that!.. :banghead
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AZKCMale Offline
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Post Icon Posted: May 06 2005,12:00 pm Post # 17 see this member send this member a private message  quote this post in reply
I went out and looked at the piston and I see some sort of plate but it runs parallel to the ring lands right about at the oil ring area. I don't see anything around the wrist pin area. I seem to remember those metal plates having a hole or round part that went around the wrist pin :stupid

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AZKCMale Offline
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Post Icon Posted: May 06 2005,12:07 pm Post # 18 see this member send this member a private message  quote this post in reply
This is a cast piston out of the 40 over block. The piston I'm chasing doesn't seem to be similar.

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Post Icon Posted: May 06 2005,12:20 pm Post # 19 see this member send this member a private message  quote this post in reply
Quote (GoFastRacer @ May 06 2005,12:13 pm)
Quote (AZKC @ May 06 2005,11:40 am)
Configuration??

Yeah, the top ain't going to look like this!. :)

Hey Art is that a pic of one of Kevins pistons?That doesn't even look like a true flat top.It looks like it has a small dish.If so he needs to make sure he gets the same cc dish.

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AZKCMale Offline
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Post Icon Posted: May 06 2005,1:46 pm Post # 20 see this member send this member a private message  quote this post in reply
Yep thats one of mine :good Squezin Spectra seems to have a match over on Hotboat. :rolleyes

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Post Icon Posted: May 06 2005,2:35 pm Post # 21 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,1:07 pm)
This is a cast piston out of the 40 over block. The piston I'm chasing doesn't seem to be similar.


Yep that is cast, you can also tell by the casting lines!.. The one you're looking for is from a different MFG that's why it don't look the same!..
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Post Icon Posted: May 06 2005,2:37 pm Post # 22 see this member send this member a private message  quote this post in reply
Quote (AZKC @ May 06 2005,1:00 pm)
I went out and looked at the piston and I see some sort of plate but it runs parallel to the ring lands right about at the oil ring area. I don't see anything around the wrist pin area. I seem to remember those metal plates having a hole or round part that went around the wrist pin :stupid

Different MFG's have different ideas on how to make stuff!.. :)
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Post Icon Posted: May 06 2005,2:37 pm Post # 23 see this member send this member a private message  quote this post in reply
Quote (AzMandella @ May 06 2005,1:20 pm)
Quote (GoFastRacer @ May 06 2005,12:13 pm)
Quote (AZKC @ May 06 2005,11:40 am)
Configuration??

Yeah, the top ain't going to look like this!. :)

Hey Art is that a pic of one of Kevins pistons?That doesn't even look like a true flat top.It looks like it has a small dish.If so he needs to make sure he gets the same cc dish.

Yep it does have a dish!.
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AZKCMale Offline
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Post Icon Posted: May 06 2005,3:02 pm Post # 24 see this member send this member a private message  quote this post in reply
Looks like case closed :cool  SquezinSpectra is hookin me up  :good The boards are a wonderful thing :beer  thanks for your help gang :comp

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GoFastRacerMale Offline
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Post Icon Posted: May 07 2005,7:38 am Post # 25 see this member send this member a private message  quote this post in reply
Good deal, glad you got straightened around!.. :good  :beer
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