Ford Fe Medium Riser Heads, The port size is actually not much different than the earlier heads, the port bottom is filled ala the 427 medium riser There was a thread a few weeks ago about the Big F medium riser variant. One exhaust port stud hole looks a little soft but otherwis Four FE performance cylinder heads, chamber side, from top to bottom: 427 Tunnel Port, High Riser, Medium Riser, and the 428 Cobra Jet. Well it means that these heads will get you about halfway there but your hunt will continue for valve train parts. I have a set of completely rebuilt ready to bolt on 1966 C5AE-F medium riser heads with 3 hours run time (see pictures) Looking to trade for 1965 date Ford FE 427 Medium Riser C5AE-F Cylinder Heads $1,200. Brunson Performance, Bamber Engineering, and Bamber Racing Engines have been developing modern head castings for both the Medium Riser and Tunnelport FE iterations. Med, high riser and tunnelport is 2. I"m not too interested in specs on cj, tunnel port, or high rise stuff since Current medium risers are cast with large ports that need minimal further work, while high risers are really intended for full porting. The medium-riser heads share the standard head’s valve-cover rail and reasonably similar rocker-stand heights. Which would perform better? ballingr 1,415 ballingr 1,415 Well there is no bad FE head, that's for sure! Do you mean absolutely the best flowing FE head, or the best flowing readily available FE head? Are we including aftermarket heads in this? the same as a 427 Ford Medium Riser head. I've had them in for 16 years now and have never had a gasket go bad. gv ne cikepo bkzj hhgat8 x87ld v9ceu gpf jhryb 5mf