How to port match a cylinder head%A
The o Raptor is the big chief style spread port head. As with the o heads, these too will require specific parts. Example pistons, rockers, valve covers, manifold and pushrods. There is a myth of valve train problems with the big chief style heads. In our opinion, this is not the case with the o Raptor heads. With our custom rockers, you will not need offset lifters. We feel this is the most powerful cylinder head available for our Super Series applications..Porting cylinder heads is a very mysterious subject filled with lots of theory, trial error, lies and myths. But, at best, manifold exteriors are only painted or polished like some tuner bling. Some may be really tricked out with a “gasket match” woooo!!.As the air moves closer to the port wall, the velocity begins to slow until it reaches the port wall where the speed is zero. The friction from the interface between the air and the port walls is what contributes to this effect. This is sometimes called the boundary layer effect. But you don’t have to take our word for this. We’ve included an image straight from NASA on how this works..Tech Port It Yourself Cylinder Heads Tips and tricks for porting your first set of LS cylinder heads.
SHARE THIS ARTICLE Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in.You can copy and paste this link to share techtips cylinder heads performance guide for pontiac v .FINISHED Header Flanges part numbers start with are Plain Header Flanges that have ” long tubes custom formed into the ports in the header flange and then TIG not MIG welded. The header flange is then ground FLAT to remove any weld beads protruding above the gasket surface plus the ports are internally deburred to remove any weld beads that may remain inside the port..
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