The Stovebolt Site Forums The Shop Area Engine Shop Anticipating Problems on Fenton Install

I'm looking for some "heads up" advice on installing Fentons on my original 216. I plan on keeping the stock intake manifold and carb. What problems should I anticipate, special tools should I have on hand, etc. Do the exhisting bolts and studs often snap off when removing? Any tricks of the trade you veterans might suggest? Thanks for the help.

Expect to have to do some grinding on both the Fentons and the intake where the clamps go. The Fentons generally do not match up very well. You'll want to test fit, see where you need to grind, take a bit off, then re-test fit. Another thing you'll want to consider is taking out the alignment dowels for the exhaust manifold at the front and rear of the head and replace them with studs. Thsi will get you 2 things, 1 is a more secure way of installing the Fentons, since they can't be assembled to manufold in a unit like the oem exhaust. The other benefit is better clamping of the manifold.
I didn't have any problems removing the bolts on mine.

Thanks, Longbox; appreciate any and all suggestions. What was involved with removing those studs and replacing with threaded rod? Is this something a DIYer can do or will I need a machinge shop. I'm wanting to do whatever I can myself to maintain "bragging rights." It's probably obvious, but I've never attempted a exhaust upgrade/swap like this before.

A good pair of vise grips or a pipe wrench will get the dowels out just fine. They are threaded in the head with 3/8-18 threads, just like the other bolts holding the intake on. Instead of threaded rod, I would suggest getting automotive style studs from the auto parts store (I used Dorman brand), as they are stonger than the threaded rod that's generally available.