I've looked on forums for info. and not exactly positive here, i have an 01 blazer that needs a motor and i have a located a reman motor from a 98 blazer my question is there gonna be a problem with the knock sensor? I know there's a diffence but will i have a problem using my sensor from the 01 into a 98 block? I also need to know if there"s anything else i'll need to swap out? Thanks in advance:icon

 

There was a post on here that talked about it but I couldn't find it when I just looked. But if I remember right the knock sensor won't fit into the 98 block unless you have the block machined. Someone will correct me if I'm wrong.

 

i thought the knock sensor only changed in 2003?

 

Ok i can use a newer block just have to drill the hole out and tap it, now my question is what is the size of the bolt? for the 2 wire sensor??? Can anyone help me???? Please I have not started this project just yet, but i got a smokin deal on a reman motor out of a 98' I am determined to make this work , was hoping someone could help me out here???? Thanks

 

swartlkk explains here

https://blazerforum.com/forum/engine...65/#post453330

 

Awesome!thanks i did some searching but never found a definite answer....