damn

[pokethesmot]

ok well my truck kept dying yesterday and i checked the voltage...its my alternator cuz its like 12.1 off and 12 while running...i don't really have the money to buy a brand new alternator...so ima probably just go to a junkyard and get one and the junkyard by my house sells them for 20 bucks....but i need a make and model ...so what is the biggest and newest alternator that will fit my truck and what is the year and make it comes off of my truck is a 82 k10 but the engine is a 74 400 small block

[pokethesmot]

bump any one...i was really wanting to get this done today

[N2TRUX]

I suggest you take yours off and take it with you to compare.

[74 C-30]

i thought any gm small block alternator would work, but like n2trux said, bring your old one to compare

[pokethesmot]

ok i got my old alternator out...but how do i tell what size it is and junk like how many amps it puts out

[74 C-30]

try looking for a tag of some sort on it, or maybe a little rivited plate

[pokethesmot]

well dang i cant find out anything about whats a big but cheap alternator that will fit my truck...the best i could find is a 63amp one from advance for 30 bucks...but would that be big enough for my needs...i got a 600w amp and some off road lights

[dammitmitchell]

well all things recently considered.. you put a big ass stereo into an OLD truck without any preventative work..
so what you NEED dude is a new alternator with a higher output.. or a capacitor...

the heavy draw from you stereo was not even a thought when your truck was made.. so your alternator was not origionally equipped to handle the excessive draw of today's aftermarket stereos.

so get a bigger better alt.. that's yoru only option..
ask for monies..
or hell do some day labor.. something.. =-)
if you want anytign bad enough you'll find a way to get it..

[pokethesmot]

Originally Posted by dammitmitchell

well all things recently considered.. you put a big ass stereo into an OLD truck without any preventative work..
so what you NEED dude is a new alternator with a higher output.. or a capacitor...

the heavy draw from you stereo was not even a thought when your truck was made.. so your alternator was not origionally equipped to handle the excessive draw of today's aftermarket stereos.

so get a bigger better alt.. that's yoru only option..
ask for monies..
or hell do some day labor.. something.. =-)
if you want anytign bad enough you'll find a way to get it..

the thing is thoe i need to know about how many amps i need

[Justins76]

I used an alt for an 86 Firebird with A/C. Its 94 amps. Might have to swap on you V-belt pulley. Used an impact wrench if you got one or they can swap it for you.

[dammitmitchell]

you can ask the guys at the counter.. for an "upgraded alt" pretty much (this is really generic here) but any UPGRADED output alt will work one designed for sbc chevy wihtout a serpentine system..

[pokethesmot]

i still dont know how many amps my old alt is....but here is a code i pulled off of it e6sf-10a352-aa-

[gchemist]

Get a 84-86 Camaro 100 AMP alternator. It has the v-belt pulley on it. I used one for years.

[pokethesmot]

oh man i think i might get a free one cuz the previous owner of my truck kept all the receipts and paperwork and gave it all to me and i just found a receipt for a lifetime warranty on the alternator from some place called discount auto =D but if that dont work i tihnk ima go for a camaro alternator

[72 CustomCamper]

Your original one was probably with out AC 42 amps. With AC 63 amps...


Chuck

[pokethesmot]

Originally Posted by gchemist

Get a 84-86 Camaro 100 AMP alternator. It has the v-belt pulley on it. I used one for years.

so that means it will bolt right up?

[dammitmitchell]

yes dude.. it's got the correct pulley, and SBC brackets are pretty close to the same...
etc etc..

[pokethesmot]

ok the junk yard only had a 66 amp alternator for 25 bucks...and the one from advance is 63 amps and 30 bucks but comes with a 1 year warranty.....so witch one should i go for

[flamingbig10]

I would get the one from advance

[Moostifer]

Originally Posted by pokethesmot

ok the junk yard only had a 66 amp alternator for 25 bucks...and the one from advance is 63 amps and 30 bucks but comes with a 1 year warranty.....so witch one should i go for

get the one from Advance... but dont expect your battery/alt to last long if you use your audio and off-road lights a lot. could also cause your amp to overheat...

you need at least a 90 amp alt if you are going to use anything that draws current, i/e amps aftermarket lights...

the capacitor mentioned is good advice for the amp

if this isn't your daily... save the pennies and get a higher amp alt.

[pokethesmot]

there is a 78 amp one at the junk yard....ive been making calls all day lol...so should i go for it...its 35 bucks

[Scootin 81 C20]

One thing that I've seen done is people will use the heavy duty alts from a 1 ton street truck up to dump truck. It may bolt right on, or it may need some bracket mods to fit. I'll have to ask my buddy next time I see him on how he did his.