Intake Manifold Rule

[Mark Yacavone]

Originally Posted by GTOMayhem

So, you block it off with a pipe plug in the timing cover and another in the manifold? If so, then in general(not Pontiac V-8 specific) you could use a pipe plug to plug any hole, such as a coolant passage, in any intake manifold?

Rick Thomason
GTOMayhem

Not sure where you're going with this, Rick.
You can block off heater ports on an intake.
Also , you can block off w/p bypasses with a plug . Of course, it can be done at the thermostat housing (i.e. Olds, BBC) or at the water pump or block..(SBC).