Grey and red 6 crank pulleys

[pearo]

What are the options with regard to crank pulleys mounted on the balancer for grey and red sixes? I'm after two extra vee belt grooves. Will 253 or 308 pulleys fit or were there pulleys for power steer and aircon for red sixes available. Also are these pulleys interchangeable between red and greys

Rob 

[NES304]

What are you adding? Aircon?

[pearo]

Supercharger.

Rob

[john253a]

you can make and adaptor to pick up the 3 bolt holes, with SHCS and tap that to suit any pull you like

what blower you trying to fit,
the b&m144 is what i want to adapt to mine

[pearo]

Sorry John,
Please excuse my ignorance but what do you mean by SHCS.

Rob

[john253a]

socket head cap screws

as for off the shelf pulleys im not sure,
but its the only way to run multi v, or gilmer

[ekdave]

4 cyl commodore  bolt on  some have 3row pulley
but could get it machined off

[repcogrey]

Hi everyone

Sorry to hi-jack your post Pearo but has anyone attached a 8 grooved pulley to a red or grey motor harmonic balancer? If so what did you use or where did you get it from.

thanks, Scott.