I am in desperate need of the cam journal specifications on the ls1 blocks. There is a possibility that mine have been ruined due to a cam bearing coming completely detached from the block while running. All information regarding this will be greatly appreciated. Any machining guru's out there?

P.S I have tried a chevrolet dealership and have got very little cooperation from them

thanks again, Corey

 

gm specs the cam journal diameter @ 54.99-55.04 mm

cam bearing bore dia 1 & 5 - 59.08-59.13 mm
2 & 4 - 58.83-58.88 mm
3 - 58.58-58.63 mm


Glad to help you out!!!

(helps to work @ the dealership )