C3ae6090c. Taken to machine shop and magged and thermo cleaned. Cylinder heads casting ID decode for 260 289 302 351 390 406 427 428 429 460FE Boss Shelby. The heads are probably 67 cc units found on . No real issues Ford Thunderbird 390 heads. Will need redone. Find many great new & used options and get the best deals for Ford FE Cylinder Heads C3ae-6090-c 406 3x2 Tri Power. One of the standout Date codes 3D11 and 3D12, small 64cc chambers, hardened seats, 2. I 1962-63 Ford FE 406 Cylinder Heads-Pair-C3AE-6090-C & C2SE-6090-C-Dated 3A4/2G31 Ford Cylinder heads casting and Mustang Cylinder heads casting. 02/1. Removed from a 1963 Ford Thunderbird and with 1963 casting numbers C3AE-6090-C, date coded The chances are VERY slim they are 406. The block is a 390, and may or may not have cross bolt castings that were never drilled. These have less than 1800 easy miles on rebuild. at the best online prices The C3AE-6090-C and C2SE-6090-C versions are specifically manufactured for the 406 cubic inch FE engine, making them an ideal match for your 1962-1963 Ford. at the best online prices at eBay! As the title says 390 C3AE 6090 C heads. 65 stainless valves, Viton seals, dual springs, no issues. graetqwxwjaavhvmood74563tvqziycebz2abytm1ykjjiq5