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

[Show&Go]

Alright was working on installing my new cam in my ls1. The block has brand new bearings in it. We mic'd them and they cam out to BEST we can tell with this mic to be the correct size. BUT while we tried to install my camshaft . (Tick Performance Polluter Cam (24x/24x (.61x"/.61x") 112LSA) The cam bearing journal on the rear of the cam was too large to fit inside of the block. Is it possible the cam was ground wrong? It will FIT if I was to FORCE it in but it wont slide in. So the cam is big but only by a small small ammount. Going to take the stock cam over and see if it will fit in. If it will that narrows it down to HAVING to be the cam correct?

[banker099]

ive never experienced anything like that...

what do u mean

The cam bearing journal on the rear of the cam was too large to fit inside of the block

[Show&Go]

Ok I have the front of the cam in my hands. Sliding the cam into the block rear of the cam first. Trying to insert through the first bearing and the cam wont go through. It hangs up. Like either the cam is too large or the bearing too small. The bearing checked out. Im going to try to put my stock cam in to make sure we arent wrong about it being the cam

[Show&Go]

We were wrong. Apparently the cam bearings are WRONG. Stock cam wont even fit in there. Sending block off monday to get it fixed. Does anyone have a part number from a few brands to make this jack holes get it right this time around

[ducky]

We were wrong. Apparently the cam bearings are WRONG. Stock cam wont even fit in there. Sending block off monday to get it fixed. Does anyone have a part number from a few brands to make this jack holes get it right this time around

Let's hope the same guys build your block either. If that's wrong, I wonder what else is?

[CHEVROLADE]

uhh i have had cam bearing problems in the past...sucks....what year is the block?

[RedHeartbeat]

THere are two different LS cam bearings, he must have put in the ones for the newer engine rather than the older ones or buggered up the rear bearing.

[Show&Go]

THere are two different LS cam bearings, he must have put in the ones for the newer engine rather than the older ones or buggered up the rear bearing.

Red you mind being specific on these two different bearings. And it was actually the front bearing that was for sure messed up. The rear of the cam wouldnt even begin to go in. And I also have a question relating to what you said. if there are two different cam bearings why isnt there a specification on ordering a camshaft?

[RedHeartbeat]

There is one bearing size up through 2004 and another size, like a C23 for the later blocks. Here is one for the early blocks. I'm not sure on the dimensions of the bores but they are different. If you drive the larger bearing into the older block the bearing bore will be too tight.

97-2004 http://www.summitracing.com/parts/FE...n/?prefilter=1
2005 and newer http://www.summitracing.com/parts/DUR-CHP-23T/

[Show&Go]

There is one bearing size up through 2004 and another size, like a C23 for the later blocks. Here is one for the early blocks. I'm not sure on the dimensions of the bores but they are different. If you drive the larger bearing into the older block the bearing bore will be too tight.

97-2004 http://www.summitracing.com/parts/FE...n/?prefilter=1
2005 and newer http://www.summitracing.com/parts/DUR-CHP-23T/

So the block is what is different between the years and if you keep the right bearing in there the cam will still fit?