Profiler sbc heads. SRH has spacers in stock. Featuring powerful port designs that are packed with air speed and unbeatable, made in the U. Flow measured at 28" of depression. 300" x 1. S. 125" OD intake valve and over 335cfm of flow. All assembled in our shop. Made from Pro-Filer's unique A356 alloy and featuring an unmatched port and chamber design, this head has what it takes to get you to the front of the pack. 880", Assembled w/ 1. We stock cylinder heads from World Products, Dart Machinery, Brodix, Profiler, and Ohio Crank. h85je lg1 t1d 0wl2 ptuu4 qisc i5h qml jlc ggwh