350 cast dome pistons - Team Camaro Tech
Engine General Engine Discussion.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 16 (permalink) Old Aug 23rd, 08, 07:47 PM Thread Starter
Senior Tech
Mike
 
Join Date: Nov 2005
Location: Bluegrass State
Posts: 232
350 cast dome pistons

I got a set of pistons and rods in on a trade today and the only markings I see on them are H102P near the pin and what looks like an S stamped on the other side of the pin. They look cast or HYPEREUTECTIC and have a dome on the top. The guy said the were a 350 040 over piston. Maybe a Sealed power or Sterling I think. Can anyone tell who makes these and what the spec's are?

Any help would be appreciated.
Mike

Last edited by 69z28302; Aug 24th, 08 at 06:02 PM.
69z28302 is offline  
Sponsored Links
Advertisement
 
post #2 of 16 (permalink) Old Aug 23rd, 08, 07:53 PM
Moderator
Bill
 
Join Date: Aug 1998
Location: Waldorf Md. USA
Posts: 3,291
Re: 350 cast dome pistons

They are Sealed Power and they are hypereutectic. Sealed Power and Sterling are the same thing.

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 16 (permalink) Old Aug 23rd, 08, 10:15 PM
Senior Tech
Steps
 
Join Date: Dec 2005
Location: New Zealand
Posts: 13,316
Re: 350 cast dome pistons

I and others here have had problems with sealed power mexican pistons (in the fine print)
inconsistant weights and casting /machineing

And buying off the net like that...all a set of pistons needs is the box to be dropped, doesnt take much to bend a skirt.

My Spelling is not incorrect...it is creative

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.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Steptoe is offline  
 
post #4 of 16 (permalink) Old Aug 24th, 08, 01:36 AM Thread Starter
Senior Tech
Mike
 
Join Date: Nov 2005
Location: Bluegrass State
Posts: 232
Re: 350 cast dome pistons

Bill , can you see if you can find the spec's for these pistons? I need to know if there for a 350 and the compression ratio. H102P

Thanks for you help.

Mike

Last edited by 69z28302; Aug 25th, 08 at 02:22 AM.
69z28302 is offline  
post #5 of 16 (permalink) Old Aug 24th, 08, 11:30 AM
Senior Tech
Shawn
 
Join Date: May 2005
Location: PA
Posts: 1,339
Re: 350 cast dome pistons

Quote:
Originally Posted by 69z28302 View Post
Bill , can you see if you can find the spec's for these pistons? I need to know if there for a 350 and the compression ratio. H201P

Thanks for you help.

Mike
well if it is an 040 piston it will not fit a 350

its more like a 358 or something around there
victimizati0n is offline  
post #6 of 16 (permalink) Old Aug 24th, 08, 01:56 PM
Moderator
Bill
 
Join Date: Aug 1998
Location: Waldorf Md. USA
Posts: 3,291
Re: 350 cast dome pistons

Quote:
Originally Posted by victimizati0n View Post
well if it is an 040 piston it will not fit a 350

its more like a 358 or something around there


Mike,
I will look in the Sealed Power catalog Monday morning. Might not post till the evening due to my dismal internet at the shop.

Personally I have had very good luck with Sealed Power's pistons. I was coplaining just the other day that a $600 set of "name brand" pistons varied almost 6 grams in a set, but I had a $70 set of Sealed Power ones ssitting on the shelf that were all within 1/2 gram. I would prefer to use them any day compared to KB's.

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 #7 of 16 (permalink) Old Aug 24th, 08, 05:11 PM Thread Starter
Senior Tech
Mike
 
Join Date: Nov 2005
Location: Bluegrass State
Posts: 232
Re: 350 cast dome pistons

Quote:
Originally Posted by victimizati0n View Post
well if it is an 040 piston it will not fit a 350

its more like a 358 or something around there
I know the pistons are 040 over. And I know that anything over a 4.000 inch bore increase the cubic inch's. I simpley got the pistons on a trade and was wanting to verify what the fit and the compression ratio with a 64 cc head. I don't plan on using them. I just need to know the spec's so I can tell anyone interested in buying them what they are. Sorry about that confusion
69z28302 is offline  
post #8 of 16 (permalink) Old Aug 24th, 08, 05:30 PM
Senior Tech
Tim
 
77wolf10.85's Avatar
 
Join Date: Mar 2007
Location: Oklahoma
Posts: 3,222
Re: 350 cast dome pistons

H102CP comes up on FM's web catalog, but I can't find a 201.102 is like a .240 dome and 1.56 CD, 1/16 1/16th, 3/16 grooves. Lightweight coated skirt and CNC machined. Says it runs .001 clearance. wooo baby that's a long way from my 6 1/2

Tim Smith
77wolf10.85 is offline  
post #9 of 16 (permalink) Old Aug 24th, 08, 06:43 PM
Senior Tech
Chad
 
67 Plum's Avatar
 
Join Date: Jan 2003
Location: Thomasville,Ga.
Posts: 4,386
Re: 350 cast dome pistons

I have the same info as Tim plus 11.8 cc dome volume , 634 grams and press or floating pins.

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  
post #10 of 16 (permalink) Old Aug 24th, 08, 06:49 PM Thread Starter
Senior Tech
Mike
 
Join Date: Nov 2005
Location: Bluegrass State
Posts: 232
Re: 350 cast dome pistons

Tim and Chad, thanks for the info.


Mike

Last edited by 69z28302; Aug 24th, 08 at 07:18 PM. Reason: ad picture
69z28302 is offline  
post #11 of 16 (permalink) Old Aug 25th, 08, 02:24 AM Thread Starter
Senior Tech
Mike
 
Join Date: Nov 2005
Location: Bluegrass State
Posts: 232
Re: 350 cast dome pistons

Bill as you can see I had the numbers wrong on the piston. The correct number is H102P Sorry

Mike

69z28302 is offline  
post #12 of 16 (permalink) Old Aug 25th, 08, 11:23 AM
SY1
Senior Tech
Dave
 
Join Date: May 2001
Location: Michigan
Posts: 2,920
Re: 350 cast dome pistons

Mike I don't think I'd recommend 64 chamber heads to anyone wanting to use these. That's 12.1:1 static compression ratio if the deck isn't touched and 13:1 if zero decked. That's a recipe for detonation and a cast piston won't live long detonating badly if someone runs pump gas at that SCR. At 72cc you'd be 11:1 without factory deck height and at 76cc you'd be also at 11:1 if zero decked. But as you know you can run those kinds of SCR with flat tops and be better off without the domes. There is always a market for domed pistons however and you should have no trouble selling them.

I don't about the comment regarding KB pistons, but I am impressed with the attention to detail in the KB that I don't see in the piston posted.

"..............what, and get out of aviation??"

Last edited by SY1; Aug 25th, 08 at 11:52 AM.
SY1 is offline  
post #13 of 16 (permalink) Old Aug 25th, 08, 03:26 PM Thread Starter
Senior Tech
Mike
 
Join Date: Nov 2005
Location: Bluegrass State
Posts: 232
Re: 350 cast dome pistons

I only takes a little lump on the 350 pistons to raise it a bunch.

Thanks
Mike
69z28302 is offline  
post #14 of 16 (permalink) Old Aug 25th, 08, 05:37 PM
Moderator
Bill
 
Join Date: Aug 1998
Location: Waldorf Md. USA
Posts: 3,291
Re: 350 cast dome pistons

Mike,
I completely forgot about this today But it looks like everyone else has it covered !

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 #15 of 16 (permalink) Old Aug 25th, 08, 07:34 PM Thread Starter
Senior Tech
Mike
 
Join Date: Nov 2005
Location: Bluegrass State
Posts: 232
Re: 350 cast dome pistons

Bill looks like there speed pro hypereutectic without the skirt coating. 350 0.040 over pistons with a .240 dome. 12 to 1 with a 64 cc head.

Thanks
Mike

69z28302 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