Would there be any benefit to portmatching 317s to the exhaust manifolds?
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Would there be any benefit to portmatching 317s to the exhaust manifolds?
Im sure everyone here who has bought a set of used heads has seen the outline on them where the gasketmeets up. There is an area above and below the ports that fills up with soot. Any benefit in a turbo application to smoothing out the runner right in this area?
I dont plan on changing any of my ports internally, but thought it may be a good idea to go in about a 1/2"-3/4" and open it up to match the gasket and exhaust manifold, basically eliminating a low pressure area under the lip.
Anyone done it? worth the hassle
I dont plan on changing any of my ports internally, but thought it may be a good idea to go in about a 1/2"-3/4" and open it up to match the gasket and exhaust manifold, basically eliminating a low pressure area under the lip.
Anyone done it? worth the hassle