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Big Block Alternator bolt and spacer sizes #866954
11/30/10 12:40 AM
11/30/10 12:40 AM
Joined: Aug 2003
Posts: 4,384
Madison Wi
NTOLERANCE Offline OP
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Madison Wi
I cannot find any of my alternator bolts and spacers. Could someone tell me how long the bolts and spacer are? Regular 60 amp alternator, standard late 60's brackets.

Thanks.


I used to care but....... things have changed
Re: Big Block Alternator bolt and spacer sizes [Re: NTOLERANCE] #866955
12/01/10 10:03 AM
12/01/10 10:03 AM
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SPACERS
1 1/8
1 1/2
2 5/16

BOLTS
3/4 LONG 5/16S coarse
1 INCH 3/8S coarse
4 1/4 INCH 3/8s coarse
6 INCH 3/8S COARSE

Re: Big Block Alternator bolt and spacer sizes [Re: Joesixpack] #866956
12/01/10 02:02 PM
12/01/10 02:02 PM
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Grand Prairie,Texas
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The brackets are different between the B and Rb engines.

Re: Big Block Alternator bolt and spacer sizes [Re: stumpy] #866957
12/01/10 05:03 PM
12/01/10 05:03 PM
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gtx6970 Offline
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Quote:

The brackets are different between the B and Rb engines.




Ummmm, no there not

The difference is where the upper bolt passes thru the triangle bracket between B versus RB engine., Thus the 2 holes on the one end

Re: Big Block Alternator bolt and spacer sizes [Re: Joesixpack] #866958
12/04/10 02:09 PM
12/04/10 02:09 PM
Joined: Aug 2003
Posts: 4,384
Madison Wi
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Madison Wi
Quote:

SPACERS
1 1/8
1 1/2
2 5/16

BOLTS
3/4 LONG 5/16S coarse
1 INCH 3/8S coarse
4 1/4 INCH 3/8s coarse
6 INCH 3/8S COARSE





Thanks alot


I used to care but....... things have changed
Re: Big Block Alternator bolt and spacer sizes [Re: gtx6970] #866959
12/04/10 02:20 PM
12/04/10 02:20 PM
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Grand Prairie,Texas
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There are two different bracket sets for BB and have to do with a difference on where the bolt by the thermostat goes. The two holes in those brackets don't address that problem. I ran into that with my last 383.

Re: Big Block Alternator bolt and spacer sizes [Re: stumpy] #866960
12/05/10 04:15 PM
12/05/10 04:15 PM
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what i have pictured are for the 1969 and up water pump housing, 68 and down use a different bracket.

Re: Big Block Alternator bolt and spacer sizes [Re: NTOLERANCE] #866961
12/05/10 04:24 PM
12/05/10 04:24 PM
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Ontario, Canada
FJ5_Fish Offline
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Quote:

I cannot find any of my alternator bolts and spacers. Could someone tell me how long the bolts and spacer are? Regular 60 amp alternator, standard late 60's brackets.

Thanks.




What kind of alternator are you running? There was no regular 60 amp alternator - Do you have a Leece Neville alt? Those use completely different brackets.

Re: Big Block Alternator bolt and spacer sizes [Re: stumpy] #866962
12/05/10 04:26 PM
12/05/10 04:26 PM
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Posts: 1,294
Ontario, Canada
FJ5_Fish Offline
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Quote:

There are two different bracket sets for BB and have to do with a difference on where the bolt by the thermostat goes. The two holes in those brackets don't address that problem. I ran into that with my last 383.




Unless you have some kind of weird water pump housing and/or heads the 383/440 bracket is the same - by same year.

Re: Big Block Alternator bolt and spacer sizes [Re: FJ5_Fish] #866963
12/05/10 04:33 PM
12/05/10 04:33 PM
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Grand Prairie,Texas
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There is an early and late set up.

Re: Big Block Alternator bolt and spacer sizes [Re: stumpy] #866964
12/05/10 09:26 PM
12/05/10 09:26 PM
Joined: Jan 2003
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APACHE JUNCTION AZ
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early brackets







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