Pulleys to use

[jwhotrod]

As I said I'm new to this but I wondered if you "guys" could help me with crank and WP pulley selections, and can I use SBC short pump pulleys? Also are the accesory holes in the headsa anywhere close to a SBC?

jwhotrod

[tripower]

The early short SB pulleys are what you want...Hit up the local junk yard. I did some scrounging today and came up with a 6-1/8' 2 grove water pump pulley for 6.00 at the local junk yard that I am going to use with the 7 blade fan.

[Nuts]

I've been chasing an overheating problem for a year and a half, which appears to have been helped by changing pullies. I had been using a billet aluminum set from Summit which had a 6 5/8" water pump pulley. I changed this weekend to the SBC pullies from my 327 and the improvement was remarkable.

I wished I could remember why I didn't use them in the first place... It is really going to piss me off if this is the cure and they were laying on the shelve in the garage the whole time... :doh

[DaveFoster]

Smaller crank pulley slows all the other pulleys down, smaller water pump pulley speeds up the flow, but sometimes in racing if the hot water flows too quickly it doesn't get a chance to cool. We buy racing pulleys in sets for oval track use, most want a 30 to 40% reduction for more usable horsepower and better cooling, but the absolute cooling remedy is a professionably built fan shroud, at an idle if your combination of shroud and blade doesn't make a shop rag stick to the screen in front of your radiator, you should be worried about overheating in the main event.

[jwhotrod]

i guess I should explain what i am doing, and what I have so it makes more sense.

I am a streetrodder and currently campaign a '34 chevy 5w coupe that has a '97 ZZ4 crate motor that I added a highly modified '87 IROC TPI to, currently making about 400hp. the car and I have been together since1979 and about 200,000 miles. currently I am building a '35 chevy 2 door sedan, and have come by a 1964 425hp 409 to drop in it. So I am trying to put this motor together (exterior accessories) and everything with as much sensitivity to its history as I can.

And someday after the sedan is done I may take this motor and drop it in a '55 chevy pickup that is a future project.

That said, there are a few bends in this story, the guy that I bought the motor from had it all blueprinted, balanced and reassembled with a custom built TPI setup for the intake. Including a custom sheetmetal manifold, etc. So. I am yhinkin maybe the easiest way for me to add accesories to the motor for the street rod would be to use SBC pulleys and built some custom backets to stand the alternator and AC commpressor up onto of the valve covers. While I look for more stock type stuff to spread thm out again when this migrates to the truck.

I also had this wild idea last night that maybe I could use a reverse rotation impeller from a corvette water pump and make this streetrod setup serpentine.

So, I am asking if there is anybody out there as crazy as I am, and if so does any of thsi amke sense?