Less belts consume less power. and far more efficient use of the power that is consumed. grooved pulleys have to drag the v-belt in and out of the pulley as their grip comes primarily from the sides. serpentines not only lose less to drag/friction they also grip each pulley far more securely. i've heard several times of alternators with spun bearings being capable of keeping the engine from being turned over by the starter.
hmmm. i was gonna go with a points dist. with a pertronix changeover...90 mdl. chev tk. ext. coil .....
It puts all the accessories on one side. I'm pretty sure the drivers side header would have to be modified to clear everything packed onto that side of the engine unless you used the Champion or Weber eliminator brackets.
bump, no one ever menetioned what serpetine belt you use with this setup lol old as hell, but oh well sure theres always someone wanting to know the info p
YUP. Went to Advance said I need a serpentine belt for an 87 GN. Waited a day and put it on. interesting. i would have thought you would want a belt an inch longer or so, what with the taller deck on the big block.
The one that most catalogs list for a GN is actually 1/2" too long for a GN as the tensioner will be at full extension. Correct number for a GN belt is a 5060635 or 635K6, most catalogs list a 5060640/640K6 as for a GN. Also, thought I'd add that the stock GN setup doesn't clear a points distributor or a small cap Mallory distributor on a 350.
hMM.. Maybe. A Gatorback number for an 87 GN per Checker auto 2 yrs ago. <table class="proddata" cellspacing="0"><tbody><tr><td align="center">4060635---</td><td align="center"> 6PK1615</td><td align="center">6----- </td><td align="center">63.5</td><td align="center">effective length----64.25 outside length </td></tr></tbody></table>4060635 is what I use and the belt is next to the computer. <table class="proddata" cellspacing="0"><tbody><tr><td align="center">4060640-----</td><td align="center"> 6PK1625</td><td align="center">6-----</td><td align="center"> 64 effective length</td><td align="center"> ----64.75 outside length </td></tr></tbody></table>as mentioned above is .5" shorter.
