The Stovebolt Page Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Helping out ...


EVENTS

Check in for status!

Jump over to the Events Forum, to post events -- new ones or the ones we have been enjoying for some time.
Look to see what's been cancelled or postponed.

Encourage one another!

Stovebolt Site Search
 
Old Truck Calendars
Months of truck photos!
Nothing like an old truck calendar

Stovebolt Calendars

Check for details!


Who's Online Now
8 members (KEVINSKI, 5 Window 9434, 1958_Apache, greenie-reddy, 66flea, 1 invisible), 172 guests, and 3 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums50
Topics120,964
Posts969,728
Members43,804
Most Online1,229
Jan 21st, 2020
Image Posting Policy
Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
1949 GMC pistons
#1359020 Thu May 07 2020 02:00 AM
Joined: May 2020
Posts: 8
R
New Guy
I am trying to find pistons for a 1949 GMC 228 engine. I believe I have a 816 head. I need the flat top or a 5/32 dome, the 5/8 dome piston (for a 417 head) will not work in my engine. Any leads to where I can find rings and pistons would be appreciated. I'm having a lots of fun working on this one ton dually!

Re: 1949 GMC pistons
Richard K #1359053 Thu May 07 2020 12:50 PM
Joined: Jun 2001
Posts: 730
T
Bondo Artiste
Good morning! Do you know what size pistons you need? I've got a few sets that I have never used, new, still in the boxes.


Phillip
1927 Chevy Capital 1 Ton truck - basket case
1941 Chevy Suburban - Parts only
1949 GMC Suburban - 10 year project
1945 GMC half ton truck - Driver
1946 Chevy COE - Might restore one day...
1959 GMC Half ton long bed NAPCO

https://photos.google.com/u/1/albums
Re: 1949 GMC pistons
Richard K #1359159 Fri May 08 2020 01:15 AM
Joined: May 2020
Posts: 8
R
New Guy
Ok I will talk to the mechanic that is overhauling my engine and find out. Thanks for you reply.

Re: 1949 GMC pistons
Richard K #1359258 Fri May 08 2020 06:23 PM
Joined: May 2020
Posts: 8
R
New Guy
Okay I talked to Brian my mechanic. The pistons are 3.5625 in diameter with a 5/32 dome. Length 4.3191 to top of dome, length with out dome 4.211. Top of dome to center of piston pin 2.530. Pin diameter .990 Three compression rings 9/32, one wiper ring 3/16. The preferred piston would be thirty thousands over or 3.5925, a twenty or forty thousand over would work also. Brian's thought it might be harder to find rings for the twenty overs. My head is a 819 not a 816 like I said earlier. A 5/8 DOME PISTON WILL NOT WORK WITH THIS HEAD. A 5/32 dome or a flat top should fill the bill. Hopefully I got all the numbers right. Looking forward to hearing from you or any one else who would have a lead for me. Thanks

Re: 1949 GMC pistons
Richard K #1359263 Fri May 08 2020 06:57 PM
Joined: Aug 2005
Posts: 9,124
Master Gabster
You might call Kanter or Egge and see if they can help you out.


Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
Re: 1949 GMC pistons
Richard K #1359383 Sat May 09 2020 06:04 PM
Joined: Jun 2001
Posts: 730
T
Bondo Artiste
Hello Richard. I’ll be back at my shop Monday and will pull my sets of pistons out and report back.


Phillip
1927 Chevy Capital 1 Ton truck - basket case
1941 Chevy Suburban - Parts only
1949 GMC Suburban - 10 year project
1945 GMC half ton truck - Driver
1946 Chevy COE - Might restore one day...
1959 GMC Half ton long bed NAPCO

https://photos.google.com/u/1/albums
Re: 1949 GMC pistons
Richard K #1359706 Mon May 11 2020 02:04 AM
Joined: Feb 2020
Posts: 16
G
New Guy
Be careful of the dome that you use. The 819 head has the smallest combustion chamber of the GMC engines. The Flat tops will work. The 270 engines with that head had slightly dished pistons. Food for thought. Joe


just retired and finally making headway on my project truck. 1940 GMC AC152.
Re: 1949 GMC pistons
Richard K #1359874 Tue May 12 2020 01:20 AM
Joined: May 2020
Posts: 8
R
New Guy
Thanks for all the input.

Re: 1949 GMC pistons
Richard K #1360247 Thu May 14 2020 12:36 PM
Joined: May 2020
Posts: 8
R
New Guy
Ok Tiny I called Egge, they know what I need but they don't have the right pistons. They have the 5/8 dome. I looked on Kanter's website and it said their closed.
TrknGMC what did you find out on the pistons that you have? Brian my mechanic suggest if we can't find any pistons that we could sleeve the block and reuse the old pistons. This would be quite expensive.
I'm a farmer and have the soybeans and corn planted so hoping to resume work on my 49 dually. When I get this truck going I want to haul some grain to the elevator with it!

Re: 1949 GMC pistons
Richard K #1360290 Thu May 14 2020 06:30 PM
Joined: Feb 2001
Posts: 98
R
Shop Shark
Why not mill down the 5/8 dome to 5/32?

Page 1 of 2 1 2

Moderated by  Tiny 

Link Copied to Clipboard
Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 7.7.4