[Terry Burtz, Calif]

Theo,
Cylinder bores will be finished honed at 3.875/3.876 inch diameter per Ford Drawing A-6015 and this is suitable for original split-skirt pistons. Solid-skirt pistons will require more piston/cylinder wall clearance.
Exhaust seats will be installed and all valve seats are 45 degrees per Ford drawing A-6015.
Valve guide and tappet bores are .5940/.5945 inch diameter per Ford drawing A-6015.
These dimensions will be verified on the engineering samples before production is authorized.






Hi terry,
Sorry to bother you as I know you are very busy with this very exciting new engine.
One further question, you mention in your email plumbing for a oil filter, is that fairly straight forward? I certainly would want to have an oil filter from first start up.
Regards Peter


Peter,
To use a full flow oil filter, a few plumbing changes need to be made.
1)If a modified Model A Ford oil pump is used, 2 oil passages in the cylinder block need to be blocked off.
2) If an aftermarket (like Stipe) oil pump is used, 1 oil passage in the cylinder block needs to be blocked.
3) With either 1 or 2 above, all oil will exit the side of the cylinder block at the 1/8-27 NPT port.
4) The oil flows through the oil filter and returns to the cylinder block through the lower timing gear inspection cover bolt. This bolt needs to be drilled and tapped 1/8-27 NPT, and has an oil passage behind it that connects to the main oil galley.
5) The verification plan includes testing with and without an oil filter.

There are several people from Australia that are interested in this project. When the engineering samples pass verification and production is authorized, we will start a list of people interested in purchasing the new engine parts. If there is enough interest from Australia, we would like to ship directly from China to Australia to save on transportation and customs.
Terry Burtz