[Super73]

Texas Speed is not a perfect shop.

Let me just say that my 418 short block they built for me had some problems. They were told from the beginning that it was a n20 motor, set the pistons in the hole with proper clearances and do not file the rings. Pistons were set with 3.5 thou and rings were filed 18/22.. They tried to tell me that is how they set up their motors seeing 300+ n20 hits. Funny, the piston mfg they used had different thoughts. Pistons needed to be 4.5 thou and rings 28/30. They eventually made it right by paying the bill at a local machine shop to fix the bores, I opened the ring gap up.

They also don't give you all the details regarding high spring pressures and stock rockers, what happens to valve tips and side loading on guides. They will sell you their .675 lift spring all day but not admit to the valve tip erosion nor the heavy guide wear. When asked about that, they might try to sell you a roller rocker which requires more spring to control the added weight over the valve. But they seem to negate the need for a better than 5/16 .080 pushrods. High spring pressure will cause push rod deflection. Oh the vicious valve control circle.

I could go on with other things, but I will stop there. I will just say, they are not forth coming with real technical info when you ask. For cookie cutter info, generic question sure, but not much more than that.
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