| Re: TPIS Miniram |
Subject: Re: TPIS Miniram by Churchkey on 2014/1/15 2:28:26 There is no way on this earth that port size has anything to do with cracking a manifold. The cracking that you or the previous owner experienced is a dimensional problem or a quality control issue with the manifold when it was manufactured, If an intake manifold is installed on an engine that has been decked and/or has had the heads milled the manifold must be machined to match that particular engine. Normally just the front & rear (china wall) seal areas need to be milled off to allow the manifold to fit deeper into the engine valley. Extreme cases require metal removal from all 4 mating surfaces & the proper intake gasket thickness for a proper fit up. You will do much better with head ports that are bigger than manifold ports = no reversion. If this is a grocery getter just paste anything together. If you want HP @ +6K rpm it needs to be set up properly. Quick check: Set the manifold on the engine without gaskets & check if the bolt holes line up. If the manifold sits high the end rails need to be machined. If the manifold sits low use shim stock to raise it up. Shim both sides the same amount. When you have it lined up measure the thickness of the shims, add .020 = thickness of intake gasket required. Good luck |
