What can you tell me about the aluminum Sherman head advertised in the recent Vintage Ford.
Who is making it? Cost? Compression ratio?
You could contact the seller maybe they have the info.
There is an original for sale in southern Oregon .
I E-mailed Ben when I saw the add. The heads are cast from the original patterns in high quality 356 T6 aluminum, machined and sealed. They use 14 mm plugs and have a compression ratio of 8-1. They are $750 and that includes a set of grade 8 bolts and special washers and includes shipping and insurance.
Ben Serar is making them.
Tim tell me about the original, where is it listed?
Dave Williams near grants pass Oregon. Go to scvmtfc.org then look in classified section.
I wonder about the life span of a Model T at 8 to 1 compression? Bud in Wheeler.
Those who hot rod bangers claims 6:1 is the practical limit for mostly std Model A engines - over that and it's time for inserts, pressure oiling and serious money.. but they tend to go higher in rpms than Model T speedsters so maybe a Texas T high volume oiler and keeping under 2000 rpm can help a Model T hold together with higher compression?
I just wonder how legit that 8:1 really is. The newer Prus head was supposed to be something like 8:1 and it's really more like 5.xx:1
The new Sherman has a much higher compression than the Prus head, in this thread Les Schubert posted the volume of his new Sherman head: http://www.mtfca.com/discus/messages/331880/398771.html?1383490071
125 cc compared to the 210cc I measured in my Prus head.
Old Shermans came in different flavours I've heard. Les has an old one with compression more like the Prus head.
I'm on a strict T budget so I'll have to wait, maybe there's a Sherman in my future