STOCK Trick Flow SBF 351C/M 400 195cc Cylinder Head CNC Ported 62cc Chambers. This product data sheet is originally written in English. Trickflow PowerPort CNC Ported 195cc cylinder head for 351C 351M/400 or Clevor Ford engine, part number TFS-51616204-C00 which include. 680 max lift springs for hydraulic roller or small solid roller camshafts. Trick Flow PowerPort® Cleveland 195 cylinder heads feature runners based on the OE Ford 2V design. The exhaust runners are raised. 100 from the stock location to improve the short turn radius and dramatically improve exhaust flow, and a revised oil return system improves oil drain back and includes provisions for mating with Ford 351W blocks. CNC Street Ported runners are CNC-machined with a standard resolution surface finish-perfect for street and strip machines. PowerPort Cleveland 195 heads fit Ford 351C, 351M, and 400 engines out of the box. With minor machining, the heads also fit Ford 302/351W blocks to create a “replica” Boss 302 or a 351 “Clevor” engine. The heads are available fully assembled or as bare castings. Trick Flow® PowerPort® Cleveland 195 Cylinder Heads for Ford 351C, 351M/400 and Clevor. Combustion Chamber Volume (cc). Intake Runner Volume (cc). Exhaust Runner Volume (cc). Intake Valve Diameter (in). Exhaust Valve Diameter (in). Maximum Valve Lift (in). Outside Diameter of Outer Spring (in). Number of Springs Per Valve. Valve Stem Seals Included. Rocker Arm Studs Included. Rocker Arm Nut Thread Size. Rocker Arm Nuts Included. Valve Cover Mounting Style. Accessory Bolt Holes Drilled. Valve Seat Machine Style. Exhaust port is raised 0.100 in. Over stock 2V head. We do not lower invoice values since it is a violation of US and International custom laws. Let us work to resolve your problem so everyone is happy. Suite D7 Costa Mesa, CA 92627. And no repairs will be provided, nor labor charges covered by TREperformance Inc. TREperformance 1725 Monrovia Ave.