Luxury Coach Lifestyles - View Single Post

Bob Marlett · 10-28-2002, 03:21 AM

I have a 1973 coach in wonderful condition but have always been puzzled as to why it was fitted with an underpowered 391 when the 460 would have been the obvious choice. The question I have is: what problems am I in for if I decide to replace the 391 with a 460? Will it bolt up to the transmission or will I have to have a special adaptor plate made? What other concerns should I have? motor-mounts? driveline? rearend?

10-28-2002, 03:21 AM	#1
Bob Marlett New Member Join Date: Feb 2008 Posts: 2	Replacing the 391 engine with a 460 I have a 1973 coach in wonderful condition but have always been puzzled as to why it was fitted with an underpowered 391 when the 460 would have been the obvious choice. The question I have is: what problems am I in for if I decide to replace the 391 with a 460? Will it bolt up to the transmission or will I have to have a special adaptor plate made? What other concerns should I have? motor-mounts? driveline? rearend?