Is there any way to tell the difference between a 429 and a 460
without removing a head and measuring the stroke. The reason I ask is I have either a 429 or a 460 but I'm not shure which it is. The valve cover sticker says its a 460 but the flexplate has 429 written on it with grease pencil and it appears to have different balancing holes drilled in it than the known 460 I have. Is there any way to tell by casting #s what it is. If there is I will get them and post them.


1978 F-150 4x4
1998 Crown Vic Police Interceptor