Ford Motor Company may be working on a larger displacement V-8 for some of its vehicles. News of the possible engine comes thanks to an alleged confirmation from Canadian auto workers union Unifor.

In a press release from Unifor president Jerry Dias, the union states Ford has committed to building a “6.8-liter” engine at its Windsor, Ontario engine plant. The Windsor plant currently produces Ford’s 7.3-liter V-8 found in its F-Series Super Duty lineup.

“Ford has committed to source new 6.X L engines to the Windsor Engine Plant and sole source 5.0L engine assembly and current component machining to the Essex Engine Plant, along with any derivatives,” the press release said.

Confirmation from Unifor certainly does not make this a done-deal, but it also wouldn’t be the first time a worker’s union has confirmed news an automaker isn’t ready to talk about. This confirmation is likely stemming from a recent deal inked between Ford and Unifor regarding the company’s Oakville, Ontario assembly plant to build five battery-electric vehicles at the plant by 2025.

Aside from pure speculation, not much is known about the rumored V-8 engine. The 7.3-liter V-8 has a cast iron block, so it’s unlikely that this 6.8-liter would be that engine with a reduced displacement. Something based on the 5.0-liter Coyote V-8 feels more probable, but time will tell.