Page "Ford Cortina" Paragraph 109

Both the TC and TD six-cylinder models were immediately recognized over the four-cylinder versions by the raised ' power bulge ' in the center of the bonnet.

It was widely believed that this was to allow clearance of the air filter.

However, it was a purely a cosmetic change, as a four-cylinder bonnet will fit over a six-cylinder Cortina's engine bay.

Basic transmission for the six-cylinder model was originally a three-speed manual floor shift, with a four-speed Borg-Warner single rail transmission available, taken straight from the Falcon GT.

Also available was a Borg-Warner M35 three-speed automatic across all models.

From 1976 the six-cylinder engines featured a revised crossflow cylinder head, keeping in line with the Falcon.