I cut my valve covers along the runners 20 years ago to clear the intake. It’s on the backside and I don’t think anyone has ever noticed. I use metal core (moroso or Mopar performance I forget which) gaskets because they’re reusable and sealed much better than anything I tried over the years. To me the MP covers are still the best looking and have aged well. No intention on selling. Good luck!
Valve cover fitment issue with RPM Air gap intake
- Thread starter Moparman485
- Start date
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TXOval
340 stroked to 416
The 1646 gaskets are connected by a metal strip between the two cork pieces.
I use studs as well…just easier no matter what gaskets you use
I use studs as well…just easier no matter what gaskets you use
The "doubled up" Felpro 1646 gaskets work well with the MP valve covers and Air Gap intake. I tried the Morso rubber gaskets first and could not get them to seal properly. My Felpro's have been on for 4 years now w/o any issues. I went with longer bolts, tried studs and they just kept coming loose.
jeff ezell
67 Dodge Dart
https://ebay.io/m/7XRX7d
These appear to be a nice option too, but kind of pricy. They sell different thicknesses as well. I have these saved to my watchlist on eBay when I get to that point. I have the same MP valve covers and thought about these for my build.
JDMopar
Well-Known Member
I have them saved also. When I was building my 273 for my 65 Barracuda, I thought I might need them since I was using roller rockers under chrome Direct Connection valve covers. I ended up not needing them. If you just need a little bit of clearance, Felpro makes a double thick valve cover gasket. It comes with a piece of steel shim glued between 2 cork gaskets. I bought a three foot piece of 1/4-20 threaded rod and made studs instead of using valve cover bolts. I cut them to length and used stainless Nylock nuts. They work great!
jeff ezell
67 Dodge Dart
Thanksn that is a lot more budget friendly than the spacers. Even with the spacers, you'd have to buy two sets of thin gaskets, adding more to the cost. I just shared that for the people where money is no object.
MOPAROFFICIAL
Well-Known Member
First thing you need to know is if that manifold actually sits down and aligns with the Port windows. Do the bolt holes center themselves when you look through the intake manifolds holes. I think that I would use a thicker gasket after checking what I mentioned.. but id rather clearance tha manifold... but i still think the tintake sits high...
I had to grind the valve covers to clear a Victor EFI intake. Perhaps spray the gaskets with some high-tac.
I first encountered this problem in the mid-seventies putting Cal Custom valve covers on my 340. Had few tools then, a simple file was good enough to make clearance on the valve covers. No machine work necessary, and making the necessary clearance on the valve covers seemed easier to me than grinding on the intake, especially after the intake was already on the car, and a better solution than trying to run multiple valve cover gaskets.
Still doing it. Have Offenhauser finned covers on my 340 and 360, rpm air gap intakes. Like this:
Still doing it. Have Offenhauser finned covers on my 340 and 360, rpm air gap intakes. Like this:
I'm running the eBay spacers above. They were useful when trying to stuff 1.7 Jesel rockers under the chrome Direct Connection valve covers.
jeff ezell
67 Dodge Dart
Looks like they fit nicely. Does everything match up and seal off well?
The intake should be fitted to the head and milled off as needed when the engine is built. How would you put revers flange valve covers on if that is not done pictured below.. The factory tin covers and some after markets have the notch cut in for the runners on the intake. But leveling them off is a plus for sealing properly.
Moparman485
Well-Known Member
Small update. Although I have not installed it yet, I mocked up the cover with the double thick felpro gaskets mentioned above and they appear to fit without any modification to the intake or valve cover. I will post updates once installed and down the road if they develop a leak or so.
Moparman485
Well-Known Member
The intake and all bolts and ports lined up perfectly when I installed them.
lemondana
BlackDart
SCE also has the .313 thick cork valve cover gaskets a lot cheaper than the Felpros. The part no is 169076 at 30.35 at Summit.
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