V8 and v12 cam gear

[cdan34]

Do any of you guys know if the center dimension between crankshaft and camshaft are the same with the Ford v8 and the Lincoln v12. I built a v8 years ago and used a v12 cam gear. It looked the same and fit fine and runs good. I'm now building a v12 and find the center distance is about +.025 on the v12. Did they make a different gear for the Lincoln?

Thanks a lot

cdan34