JW51, re. oil filtration, I'm either going to swap the bypass oil filter I have on the 216 over to the 235 or not run one. After seeing how well the internals of this engine was without any oil filtration and reading up on PreDaves blog I decided against the full flow.
wolffcub, great input. I was debating whether to use just one vacuum source or both, yours and others have convinced me to go with a single, makes more sense. IIRC you are running a similar setup, are you still running the same jets that came with the carbs?
Jerry, it's getting closer to a middle TN run. The plan is to keep and rebuild the 216. I'm not sure that it matters but it is the original engine to the truck. Maybe you'll have your tooling done to modify the rods for insert bearings by then
Tim, great info. Good to know about the dual heat feeds working OK for you. I'm leaning that way over the water heat. I agree if the water taps were at the ends it would circulate in the manifold better. With the plate taps it's probably no better than a dual exhaust gas heat.
re. an exhaust heat check valve. Tom Langdon mentioned that was the only way dual exhaust heat would work. Also said he hasn't seen the valve in years.
The valve would work similar to how a PCV valve works. Allowing one way flow when one sides pressure is lower than the other.
If we could only find a PCV valve with pipe thread connections that was also able to withstand immense heat.
Funny, I went with the Fenton dual intake manifold because I thought it would matchup better with the Fenton headers. Well I still had to use the modified OEM manifold clamps to bolt them both up.
Dave
