I have heard that the replacement head gaskets for the 144/170/200 are thicker than the ones Ford used and will drop your compression ratio. Is this correct? I found a Ford gasket on E-bay that is a C9DZ-6051-A. I have a 1965 170. Would this be the correct gasket to maintain the original compression ratio without having to mill the head?
Which Head Gasket?
- Thread starter ags290
- Start date
Howdy Back ags:
The code #C9DZ- 6051-C is a Ford Service Part. It was listed after FoMoCo stopped using the OEM Steel shim casket. It is a steel shim gasket but with a layer of fiber material top and bottom. They seal better than the original shim gasket. The "C" is a little strange to me, but not surprising given FoMoCo ever changing engineering upgrade code system. If you could post a photo I could tell you better.
Hope that helps.
Adios, David
The code #C9DZ- 6051-C is a Ford Service Part. It was listed after FoMoCo stopped using the OEM Steel shim casket. It is a steel shim gasket but with a layer of fiber material top and bottom. They seal better than the original shim gasket. The "C" is a little strange to me, but not surprising given FoMoCo ever changing engineering upgrade code system. If you could post a photo I could tell you better.
Hope that helps.
Adios, David
viewtopic.php?f=1&t=72239
A's are 3.68" bore gaskets and C's are the small 3.50" bore gaskets. You can fit a large diameter A suffix gasket to a small diameter bore engine no problem. If it's NOS it will be 22 to 27 thou thick.
On a 170, you will be AOK compression wise with every nos Ford gasket.
super4ord":azx7knp0 said:
A's are 3.68" bore gaskets and C's are the small 3.50" bore gaskets. You can fit a large diameter A suffix gasket to a small diameter bore engine no problem. If it's NOS it will be 22 to 27 thou thick.
On a 170, you will be AOK compression wise with every nos Ford gasket.