Piston ID help - Team Camaro Tech
Engine General Engine Discussion.

 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old Jul 30th, 09, 02:31 PM Thread Starter
Senior Tech
Casey
 
Join Date: Apr 2006
Location: Nebraska
Posts: 265
Question Piston ID help

I bought a ZZ1 350 roller motor and it has pistons in it with these numbers on them: 14096478 trying to ID the pistons. Anyone know where to look? They don't seem to show up in any GMPP catalogs I have access to.

here's a pic:

Last edited by cdunson; Jul 30th, 09 at 03:07 PM. Reason: add image
cdunson is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old Jul 30th, 09, 06:47 PM
Moderator
Bill
 
Join Date: Aug 1998
Location: Waldorf Md. USA
Posts: 3,291
Re: Piston ID help

Cassey,
GM's piston part numbers are pretty difficult to follow. The part number in the catalog is for the piston & pin assembly and will not be the same as the part number on the piston. Sometimes the aftermarket parts crossovers will list them, sometimes not. The ones in your picture almost look like the pistons they make for using 305 heads on a 350 ? They have a pretty good dish and along with the giant valve reliefs the compression wont be much with the usual 350 head. Which heads are on the engine ? Hard to say what GM put in thier crate engines sometimes.

Bill Koustenis
Owner
Advanced Automotive Machine
Waldorf Md
1971 Chevelle "Heavy Chevy" original owner


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BillK is offline  
post #3 of 8 (permalink) Old Jul 30th, 09, 08:36 PM Thread Starter
Senior Tech
Casey
 
Join Date: Apr 2006
Location: Nebraska
Posts: 265
Re: Piston ID help

I don't have heads yet so I was trying to figure out the pistons and decide what cc heads I need to get to have compression at about 9.5 or 10 to 1 Any suggestions? What cc dish should those be with the releifs?
cdunson is offline  
 
post #4 of 8 (permalink) Old Jul 31st, 09, 05:02 AM
Moderator
Bill
 
Join Date: Aug 1998
Location: Waldorf Md. USA
Posts: 3,291
Re: Piston ID help

Casey,
I just looked in my Sealed Power catalog. It looks like those pistons are the ones they used in Vin K Chevy truck engines from 1991-1996. You will probably have to cc the dish to figure out what pistons you need. That looks like a pretty big dish, if I had to guess I would say at least 15cc Those engines were only 8.5 to 1 so I am betting you will need a pretty small chamber head, somewhere around 58cc ? to get the compression where you want it. I doubt that you will find a published piston cc spec anywhere. The Sealed Power replacement part number is H580CP

Hope this helps,

Bill Koustenis
Owner
Advanced Automotive Machine
Waldorf Md
1971 Chevelle "Heavy Chevy" original owner


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BillK is offline  
post #5 of 8 (permalink) Old Jul 31st, 09, 12:41 PM
 
Join Date: Apr 2000
Posts: 21,341
Re: Piston ID help

Dam, Bill! You are GOOD!!

Thanks, I will file this away!

Hunt up a GOOD pair of 305HO, -601 heads and cut them to 52 cc's and install w/ the needed thickness headgaskets to put your CR. where you want it and go!

pdq67

PS., and they range from 52 to I figure 58 cc's........ At least my pair are 53 and 55 cc's.



pdq67 is offline  
post #6 of 8 (permalink) Old Aug 3rd, 09, 09:00 AM Thread Starter
Senior Tech
Casey
 
Join Date: Apr 2006
Location: Nebraska
Posts: 265
Re: Piston ID help

Thanks for the info guys - much appreciated. Is there any drawback to using that piston and a head with a small chamber versus more of a flat top style piston and a larger cc head? I was thinking of just getting some Iron Eagle heads or something similar in that price range. This is going into a street car that I want to have lots of torque, won't be winding it out much. But was hoping for something in the 400hp/430tq range. Any suggestions?
cdunson is offline  
post #7 of 8 (permalink) Old Aug 3rd, 09, 06:20 PM
 
Join Date: Apr 2000
Posts: 21,341
Re: Piston ID help

I wouldn't think so, but what I don't know is, will -601 heads support that much hp unless they have bigger valves installed?

They usually only have 1.84"/1.50" valves stock vs 2.02"/1.60" in big valve heads.

pdq67



pdq67 is offline  
post #8 of 8 (permalink) Old Aug 3rd, 09, 06:26 PM
Senior Tech
Chad
 
67 Plum's Avatar
 
Join Date: Jan 2003
Location: Thomasville,Ga.
Posts: 4,386
Re: Piston ID help

Quote:
Originally Posted by pdq67 View Post
I wouldn't think so, but what I don't know is, will -601 heads support that much hp unless they have bigger valves installed?

They usually only have 1.84"/1.50" valves stock vs 2.02"/1.60" in big valve heads.

pdq67
Bigger valves in the 601s will actually hurt air flow.The chamber is so small 1.94 and 1.6 valves are to close to the chamber sides.The ports aren't big enough either.

Look at the Iron Eagle heads here 49cc chambers 180cc or 200cc intake ports http://www.competitionproducts.com/products.asp?dept=14

I think I would go with the 180cc ports for what you are doing.They are $899.97/pair assembled.

67 Plum Mist Met. 408 TH350 3.08 posi
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
67 Plum is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome