Quote:
Originally Posted by cycleguy55
Had similar oil consumption problems with mild 460. I replaced my valve stem seals as well, but that had little effect.
Turns out the root cause was the intake manifold gaskets weren't properly sealed, allowing oil to be sucked from the valley into intake ports. Drain coolant, pull the intake manifold and carefully inspect the gaskets for signs of leakage. |
Done that drill lke 5 times now, finally ended up with flatout 0.120 gaskets, trimmed the tops so that the inward taper on the upper part of the heads didn't force the gaskets down, maximized the area on the bottom where the intake bears...Think thats a problem with these big port head there isn't but like 3/8" of gasket area at the bottoms of the intake ports...