| |
Click on image for the lowdown. 
====
| | |
0 members (),
95
guests, and
0
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,050 Posts1,055,643 Members48,426 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | 
#15433 10/13/2003 1:31 AM | Joined: Jul 2003 Posts: 33 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2003 Posts: 33 | I have a 1949 3600 with a 235 6cyl. I had valve job done on the head. In the process of putting it all back together we've noticed a .005-.010" gap between the exhaust manifold and the head on one of the ports. I had the manifold re-ground but it didn't improve the fit. Is the gap a problem? Any suggestions on fixing it?
Thanks for the help!
Dierks321 | | |
#15434 10/13/2003 2:19 AM | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | dierks321,
Did you install the three metal alignment rings between the intake ports in the manifold and the head? If yes, you might need to grind the rings down a little to make up for material removed from grinding the manifold and/or head mating surface(s).
Also, the thichness of the original manifold gasaket was almost twice that of gaskets now sold (I know this from a NOS set of original gaskets). You could try using two manifold gaskets (and maybe use the hi-temp copper-colored gasket seal available at auto supply stores).
Tim | | |
#15435 10/13/2003 2:55 AM | Joined: Jul 2003 Posts: 38 Apprentice | | Apprentice Joined: Jul 2003 Posts: 38 | Dierks 321
You didn't mention if you had the intake ground. I had the same problem with my 228 GMC. I made sure that I had a good fit between the intake and exhaust part of the manifold, and bolted it together. Then had the intake and exhaust manifold milled as one unit. I did grind the 3 steel rings down to allow for a true flat fit. It worked great, no intake or exhaust leaks. Also used a new fel-pro gasket.
Jim
| | |
#15436 10/13/2003 2:57 AM | Joined: Jul 2003 Posts: 38 Apprentice | | Apprentice Joined: Jul 2003 Posts: 38 | Dierks 321
You didn't mention if you had the intake ground. I had the same problem with my 228 GMC. I made sure that I had a good fit between the intake and exhaust part of the manifold, and bolted it together. Then had the intake and exhaust manifold milled as one unit. I did grind the 3 steel rings down to allow for a true flat fit. It worked great, no intake or exhaust leaks. Also used a new fel-pro gasket.
Jim
| | |
|
|
| |
