Topic: alloy pulleys

[kev 190164]

hello all. as any one used these are they any good.thanks kev. http://www.ebay.co.uk/itm/Pontiac-Pulleys-Underdrive-Kit-350-400-428-455-V-Belt-/110549401365?pt=Vintage_Car_Truck_Parts_Accessories&hash=item19bd41ff15

[4SPEED]

not to sure you want a underdrive kit .  that will slow down the water pump and Alt.

here is one , not a v-belt system.

http://www.78ta.com/smf/index.php?topic=19596.840

[kev 190164]

my trans am as the buick 455 fitted but i posted the pontiac one they do the buick as well. my engine is a 500hp +  .i have an alloy rad twin kenlow electric fan and a high flow  short neck water pump. do you know what pulley kit i need as i dont know what underdrive means. my trans am his a fast road/street car i am not using it for racing. i really need help as i dont want to put the rusty metal ones back. thanks kev