AlloyBoltz.com, TA, will have bolts. Are your timing cover holes through or blind? TAs covers are blind (stupid) so I had to get new 1/4-20 bolts that were shorter. Hardware store bolts and lock washers painted black will work fine. USE ANTISEIZE.
It's a Flowkooler 1621 for '73-87 applications, measures 4.5" from gasket flange to pulley flange. I think there are actually 3 different lengths for water pumps for various years.
Agreed on the status fans, I already had the car wired up for these from years back, so it was easier to drop these in and literally plug them up and done. They pull 2700cfm and I've yet to have a overheating issue in 10+ years with this brand.
Scott I did see your post but I didn't remember the specifics of it. What radiator are you running? Not a hijack at all, incredibly helpful actually!
Ohhhh, ok. Yeah it does stick out kinda far doesn't it? The Flowkooler is actually a regular GMB pump with Flowkooler's own CNC milled impeller on it. It was Bob's recommendation, and it's got a lifetime warranty so it's what I went with. I tried finding info on the TA high performance pump, but I couldn't even find a picture of the impeller.
I was impressed at the machining on the impeller, very tight tolerances. The fins need to be as close to the housing as possible without touching for the pump to build good pressure, and using clay to measure, these ones are about .020" away from the housing compared to about .195" with a Gates pump.
