I have a set of March underdrive power & amp series pulleys I got from Summits sales table a few weeks ago, They are part number MCH-4445 and are listed as being for a 84-87 Corvette. It includes a crank, WP, and alternator pulley.
My question is: Will these work on my 91 L98 GTA? I notice that March has a different part number for Firebird pulleys, so what are the differences between the Vette and Firebird L98 pulleys??

 

Hmmm, though somebody would chime in.

Not completely sure about this, but the Vette pulleys might be short water pump style.

 

http://www.summitracing.com/parts/MC...n/?prefilter=0

They are listed as being for a long water pump and fitting 84-87 vettes.
Anybody?

 

Bump.

 

Anybody? If not, I'm just gonna sell these on ebay and go buy the correct part number pulleys.

 

These pulleys are now for sale.
http://cgi.ebay.com/ebaymotors/ws/eB...%3AMESELX%3AIT

 

you could pop your pullies off and see if the march ones bolt up correctly....also check the belt alignment to see if it's correct. Then you'll have to figure out new belt size to fit. just an idea.

I run a set on mine but ended up putting stock alternator pulley back on due to very low charging at idle, especially with fans and lights on, just info.

 

Yeah, I thought about fitting them up to see if the belt would line up correctly but then I decided not to. I'm just gonna try to sell these and buy the correct ones.