The V8 Owners Forum -

RO 34 is too small for a 4.6. It is usually used on a 3.5 driven at between 1 to 1 and 20% under. The blower has a rev limit of 5000 rpm so in my view its marginal on a 3.5 anyway.
A GMC 4 71 is the blower to use.........assuming you want the " in ya face" hole through the bonnet look.

Valve springs should be dictated by cam choice..........7 psi of boost behind them doesn't make a blind bit of difference. You didn't mention the real steel blower cam.........go with the recommended double springs.

forgot to mention..........keyways are no problem

We have had small batches of splined shafts done in the past but found it just was not economic compared to buying in complete snouts manufactured in the USA. We are distributors for Blower Drive Service.

No reason why you can't run the rear bearings in an oil bath.......its just not normally done. All aftermarket GM blowers are built with heavy duty bearing plates, and the rears, without exception, have no provision for an oil bath. The oil in the front cover is primarily to lubricate the gears. One...

No, because the front shaft is sealed with the bolt that holds the gear on (loctited) and the rear housing should be fitted with sealed rear bearings. The rears do not run in an oil bath like the fronts.

To be honest Tom, until you mentioned it, I wasn't aware there was a core plug in the shaft, but you are right and its fitted from the inside !!! I would not try to remove the shaft from the rotor.....its not going to slip out as you say, it will either be an interference press fit or may even have ...

The original pins are tapered and driven in, then the hole is peened over to eliminate the unlikely event that the pin starts to back out. If there is no pin there then ream it and fit another pin. If the pin is there but driven in deep then I would leave well alone, just make sure the hole is peene...

why on earth do you want to take them out

For those interested I have located a company that can match and apply the teflon coating. Sprintex seals were specially manufactured but are still available ex stock from Sprintex Austrailia. I shall be ordering from them within a few days so anyone interested let me know. They are $200 AD ( aprox ...

There are a couple of pics on here
http://usera.imagecave.com/ukblowers/

ukblowers@aol.com

Hi Dimitri,
I've had 3 or more e-mails from you now asking if its O.K. to ship the blower . I guess my replies are not reaching you so if you are reading this then YES its fine to ship it over to me.

thanks Nigel