Thanks for a very comprehensive report Jim. I followed this thread when first posted as I will be reassembling my 440 when the machinist is done. I disassembled mine which was necessary due to a broken piston (another long story). When doing so I noted that when the machinist assembled this engine he did not use any gaskets other than the valley pan itself. It also appeared to have been sealed with "cement" rather than "sealant". I guess this just points to the fact that as you said there is more than one way to skin this cat. I'm using cast iron 906 heads that have not been machined. Now I have to decide how I'll tackle this project when the time comes.
Paul L.
On Monday, March 10, 2014 10:25:16 AM UTC-5, 62to65mopar wrote:
Hi all,
A big thanks to Jim Jablonski from the 62-65 Mopar mail list for sharing his experiences with a big block intake installation. I added the page to the Tech page on the site.
March 10, 2014 — An Essay on Sealing a 440 Mopar Intake Manifold added to the Technical Tips page.
http://1962to1965mopar.ornocar.com/440-intake-seal.html
Thanks also to all the people on this list who "chipped in" on this subject. :)
Gary H.