Quote:
Originally Posted by MGM
I guess I can sort out the coolant seeping problem from the lower intake. Apparently a bunch of people online have come across this when using TrickFlow Twisted wedge heads. Surprised the gaskets aren’t sealing- apparently grey RTV will help. I’m not used to coating my intake gaskets in rtv. I’ll double check the manifold isn’t warped. It’s one of the only parts from the engine- besides the block that’s original.
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I have a 460 (385 Series), so a different beast, but I was having problems getting everything to seal. Here are the instructions that eventually worked for me (you'd have to adapt to your application). BTW, I used Permatex Ultra Black RTV:
“For std port installs I use the felpro blue intake gasket. I use RTV on both sides of the gasket not only at the water transfer holes but also around the intake ports. The key is to use a light smear. You don't need to go crazy here. PIA yes but it works.
“In addition I torque the intake in 3 steps using the vertical holes to set the intake height relative to the china wall and runner exits port entries. (I use a video scope to look for port alignment both vertical and front to back) Once the intake is located I then torque in the normal sequence 10 / 20 / 35 and let it set overnight. I then retorque to address gasket compression. I then re-torque again after dyno when the engine has cooled. Any bolt holes into the rocker valley that are not blind need a smear of sealer on the threads to prevent
oil migration past the threads.”
https://www.460ford.com/forum/37-eng...ml#post1589802