289 / 302

Single cylinder head from 1967 Mercury Cougar with non smog 289 engines, 289-2V and 289-4V all the same. Sold as a core, needs thorough cleaning and rebuilding prior to use. Typically this cylinder head has 1.78 and 1.45 inch valves, and the chambers measure out at 54-55 cc's. With stock pistons, these heads will net an approximate compression ration of 9.3:1. Basic cylinder head number is 6090. Several Ford casting numbers were used, including the common C6OE-M or C6OE-6090-M.These weigh...

Single cylinder head from 1968 Mercury Cougar 289 engines without smog. Sold as a core, needs thorough cleaning and rebuilding prior to use. Typically this cylinder head has 1.78 and 1.45 inch valves, and the chambers measure out at 61.7-64.7 cc's. With stock pistons, these heads will net an approximate compression ration of 8.7:1. Basic cylinder head number is 6090. Several Ford casting numbers were used, including the common C8OE and "289".*Note - These low compression heads are not...

Single cylinder head from 1967 Mercury Cougar with California smog 289 engines, 289-2V and 289-4V all the same. Sold as a core, needs thorough cleaning and rebuilding prior to use. Typically this cylinder head has 1.78 and 1.45 inch valves, and the chambers measure out at 54-55 cc's. With stock pistons, these heads will net an approximate compression ration of 9.3:1. Basic cylinder head number is 6090. Several Ford casting numbers were used, including the common C6OE-M. *Note - These...

Single cylinder head from 1968 Mercury Cougar 302-2V engines without smog. Sold as a core, needs thorough cleaning and rebuilding prior to use. Typically this cylinder head has 1.78 and 1.45 inch valves, and the chambers measure out at 61.7-64.7 cc's. With stock pistons, these heads will net an approximate compression ration of 8.7:1. Basic cylinder head number is 6090. Several Ford casting numbers were used, including the common C8OE-J and "302" and "2-V".*Note - These low compression heads...

Single cylinder head from 1968 Mercury Cougar 302-4V engines without smog. Sold as a core, needs thorough cleaning and rebuilding prior to use. Typically this cylinder head has 1.78 and 1.45 inch valves, and the chambers measure out at 52-55 cc's. With stock pistons, these heads will net an approximate compression ration of 9.5:1. Basic cylinder head number is 6090. Several Ford casting numbers were used, including the common C8OE-D and "302" and "4-V".Current casting dates include: 7G25,...

Single cylinder head from 1968 Mercury Cougar 302-2V engines with smog. Sold as a core, needs thorough cleaning and rebuilding prior to use. The 'with smog' cylinder heads would have been found on 3 and 4 speed manual transmission cars. Typically this cylinder head has 1.78 and 1.45 inch valves, and the chambers measure out at 61.7-64.7 cc's. With stock pistons, these heads will net an approximate compression ration of 8.7:1. Basic cylinder head number is 6090. Several Ford casting numbers...

Single cylinder head from 1968 Mercury Cougar 302-4V engines with smog. Sold as a core, needs thorough cleaning and rebuilding prior to use. The 'with smog' cylinder heads would have been found on 3 and 4 speed manual transmission cars. They came drilled and tapped for thermactor smog systems. Typically this cylinder head has 1.78 and 1.45 inch valves, and the chambers measure out at 52-55 cc's. With stock pistons, these heads will net an approximate compression ration of 9.5:1. Basic cylinder...