Need info. Has this ever happend or have you heard of this happening.

[danger_ranger83]

Yea but also there are different size bores for the bearings but most come with the instructions for where to install the bearings

[Show&Go]

welp they fudged it up. So we gonna figure out how to undo that issue

[GasGuzzler]

Yea but also there are different size bores for the bearings but most come with the instructions for where to install the bearings

Yep, at least in the old days the bearings are smaller the farther rearward...so if the installer put the rear bearing in the front the cam won't go in.

[danger_ranger83]

If i remember correctly the middle is the largest and then 2&4 are a bit smaller then 1&5 are the smallest

[RedHeartbeat]

Yeah, they bore the block so that a thicker cam bearing can be used. The cam journal size is the same for all the years, it's just that the block is bored larger. Due to the soft malleable nature of the bearings it is physically possible to put the newer bearing inside an older engine. Do you have the PN of the bearing they installed? Did they buy and install the bearings or did you get them? Durabonds are one of the best you can get, they are coated and made in one piece rather than made flat originally and then rolled into a circle.