just got my bbk 58 mm throttle body in the mail today, never really messed w/ the iac sensor or the tps sensor, will stock ones work with a bbk 58mm? i was looking on it, and the sensor that goes on the left side (if ur facing tb) is almost like a half circle on the factory one, and on the bbk its a circle. the holes for the bolts are in the same place though..just wondering before i install.

also, my throttle body plate is really hard to read, the letters aren't very clear AT ALL, anyone have pics of theirs? or had this problem?
thanks for any help
-Jason

 

The BBK uses the "stock" IAC and TPS sensors. You have to swap the bottom coolant plate, and thats what holds the IAC.

 

swap the bottom collant plate? with what?
just don't want to take off my intake manifold only to find out it wont work w/ what i have. thanks for the help.

 

First of all you remove throttle cables, coolant hoses, then electrical connectors. Then you undo four bolts that hold tb to manifold. The bottom coolant plate is on the bottom of your stock tb (which is where IAC is) just undo bolts and transfer it to new tb. TPS sensor is the same (on left side) just undo and mount on new tb. Its a simple swap, you do not have to remove intake manifold. Hope this clarifies and answers your question.

 

i need to port the holes on the front of my intake manifold to match the 58mm, i'm not about to fill that engine w/ metal shavings.

 

On my holley 52mm the TPS didnt line up right I had to use a drill and make the TPS sensor adjustable, then use my laptop to adjust it until when it was 100% open the TPS showed 100% open. At first it was going past 100% and messing things up.