Project 68 The Great One

[Code Red]

On that water pump, you should put the plate against the pump and check the clearance between the impellar and the plate at the center hole. The clearance should be minimized in order to keep the efficiency of the impellar. Alot of times it is 1/8" or more with aftermarket parts and that can be the root of hot running problems with pontiacs. I just wanted to let you know while you have it apart to check it. You may have already known this.

thanks I noticed that int he pontiac engine building book today actually but the shop has already assembled the water pump we will see what happens plus I want to switch housings down the road tot he butler performance one like on the 455 I pictured there