








Our Billet Aluminum CNC valley plates are manufactured from a solid piece of 6061 Aircraft aluminum. They feature a removeable access plate in the middle with a re-usable O-ring seal. These work best with raised port heads such as Trick Flow 270's or Indy's. We also offer a Lexan clear access plate (part number 200-1217), so you can see what is going on with your valvetrain down in the lifter valley (even while the engine is running!) A super trick setup you won't find anywhere else. This part number fits "RB" (413/426Wedge/440) engines only.
Please note: Aluminum is very soft! Even sliding it across a table will cause very small scratches. We try to be as careful as possible during manufacture, but occasionally there will be some surface scratches on these resulting from normal handling during the manufacturing process. It doesn't affect function at all, and the vast majority of our customers would never give any of this a second thought, but we have had some people who are VERY particular, so we thought it would be worth mentioning beforehand.