Doug Thorley Headers with SB Trick Flow Heads

Dennis Hilliard said

Called Trick Flow today asking if maybe the head is ever so slightly wider on the exhaust side, I spoke to Howard and his answer was, I don't think so, have not heard of that. Well with that, someone who has a TFS head and a stock one on the bench could maybe find a way to check for sure. So the question is not really answered yet. There you have it.

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Even if it is it would be so little it would have no effect.I had edelbrock heads,stock heads and now trickflows all with dougs headers and have not seen any substantial difference between them (the stock heads and trickflows same headers same car).You have to understand the tech doesnt have a blueprint in front of him and there are production tolerances as well.If the engine is right,the mounts are right and the overall fitment is right it is the headers.