59A C/shaft Pulley & 8BA C/shaft Double Pulleys Details.

[Phil Gillespie]

Have a 59 A C/shaft pulley wide belt. Double Pulley
Overall length: 4.78" approx.
Rear side to centre of 1st pulley: 1.5"
Rear side to centre of 2nd pulley 4 3/8".

Would like the details of above for an 8BA double pulley wide belt.
As believe this could be the one I require to align with the 8BA fitted water pumps along with alternator and fan unit as per 59a.
Thanks in advance for assistance.
Phil NZ

[flatheadmurre]

If you have 8BA waterpumps that´s what you need 8Rt pulley moves belt away from block to align with pumps.
Intake generator combination must also be of newer generation or a spacer is needed.
What block are you running 8BA ?

[Phil Gillespie]

Originally Posted by flatheadmurre

If you have 8BA waterpumps that´s what you need 8Rt pulley moves belt away from block to align with pumps.
Intake generator combination must also be of newer generation or a spacer is needed.
What block are you running 8BA ?

A 69A block. Block has 8BA camshaft and HEI distributor. presently fitted with just a single c/shaft pulley. Just want to go with a double pulley set up instead of fitting an electric fan.
Phil NZ

[Mac VP]

Here’s the 1949 wide belt pulley (also used on 48-52 truck V8’s):
http://www.vanpeltsales.com/FH_web/F...rankpulley.jpg

[flatheadmurre]

Fan mounted on generator 8BA narrows down the pulley choices to around 38-39 if i rember correct...
They are the large diameter shaft pulleys fitting a 2 brush generator with fan mount option.

[Phil Gillespie]

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Originally Posted by flatheadmurre

Fan mounted on generator 8BA narrows down the pulley choices to around 38-39 if i rember correct...
They are the large diameter shaft pulleys fitting a 2 brush generator with fan mount option.

Have a Powermaster Altr/Genr which will take the 59a fan bracket attached . This is all ok for the single pulley just want the double pulley to include the 59a fan and bracket. hence the request for pulley location as measured from rear to cross check set uo before purchase.
Phil NZ

[flatheadmurre]

But if the powermaster is for an early generation -48 sheeve won´t line up with the new 8RT pulley and waterpumps...if it´s not adjustable a bit forward in the bracket...

[Phil Gillespie]

Originally Posted by flatheadmurre

But if the powermaster is for an early generation -48 sheeve won´t line up with the new 8RT pulley and waterpumps...if it´s not adjustable a bit forward in the bracket...

My existing set up lines up. ie genr, water pumps, c/shaft single pulley.
I wish to fit a double c/shaft pulley and the standard 59a fan set up which bolts up to the existing altr bracket. To have the same set up as an existing 59a, with extra belt driven from c/shaft double pulley to fan pulley.
Phil NZ.

[flatheadmurre]

59AB single or double pulley lines up with 59ab waterpumps and early generator and if double pulley a searate fan.
To get a postmounted distributor into the mix like your HEI you need 8RT crankpulley, 8RT Waterpumps and a late generator. Trying to mix early and late ends up with an misalignment. Or am i missing something here ??
Only single sheeve pulley i know is the early style and to close to the block to clear a postmlounted distributor...so i assumed you had an early setup to start with and changed pumps...then needed a matching crankpulley...and needed to adress the generator offset to.

[Phil Gillespie]

Originally Posted by flatheadmurre

59AB single or double pulley lines up with 59ab waterpumps and early generator and if double pulley a searate fan.
To get a postmounted distributor into the mix like your HEI you need 8RT crankpulley, 8RT Waterpumps and a late generator. Trying to mix early and late ends up with an misalignment. Or am i missing something here ??
Only single sheeve pulley i know is the early style and to close to the block to clear a postmlounted distributor...so i assumed you had an early setup to start with and changed pumps...then needed a matching crankpulley...and needed to adress the generator offset to.

That was my initial question concerning the measurements of pulley location on the double pulley for 8BA just to check prior to ordering one.
Then all will be good.
Phil NZ

[Overkill-F1]

A quick measurement of a C8BA-6312-B pulley, from a '52 F1, C1BA/8RT:
overall length 3 11/16",
from rear to center of 1st pulley 2",
from rear to center of 2nd pulley 3 1/4".
Terry

[Phil Gillespie]

Originally Posted by Overkill-F1

A quick measurement of a C8BA-6312-B pulley, from a '52 F1, C1BA/8RT:
overall length 3 11/16",
from rear to center of 1st pulley 2",
from rear to center of 2nd pulley 3 1/4".
Terry

Many thanks for that info.
Phil NZ

[Phil Gillespie]

So set up the manifold with alternator and fan bolted up. The pitch between pulleys is 3 ".
This equates to the pitch on pulleys of 59A, 3" so the 59A crankshaft pulley is the one tp be used. This is going onto a Scat crank.
Appreciate assistance and advice.
Phil NZ

[flatheadmurre]

59AB pulley will put the belt to close to the block and not give you enough clearance for the post distributor...
If you are going to run a HEI distributor this will not work...

[Phil Gillespie]

I had not properly explained the set up.
Have a Speedway 4 barrel carb single plane inlet manifold. At front of this is mounted a spacer block which the Alternator then bolts to. this brings the Alternator pulley into same plane as present single pulley c/shaft. The belt is clear of distributor, runs under it.
My error for not mentioning adaptor plate attached at front of intake manifold affording more clearance.
Phil NZ

[Brian]

thing is, the 59A pulleys run closer to the front of block than the 8BA , so, I think in order to achieve what you're wanting to do, you'll need to space out the double 59A crank pulley to line up with your pumps and alt. Then, when you hang the original 59A fan setup off of the Alt bracket, the outer crank pulley will also line up.

[Brian]

There is a member on here who made a custom fan mount using Chev Corvair components...you may need to make up some custom fan mount in order to be able to use 8BA crank pulley. Doubt you'll find a factory Ford 'bolt on'.

[Bored&Stroked]

I'm with Brian - don't see how any 32-48 pulleys are going to help you - they all put the belts (whether one or two) - right against the block.

Also, when you're talking about "length" in these conversations, one needs to ensure that we're all talking about the same thing --- some 49-53 pulley's have the oil seal surface an integral part of them (like the earlier pulleys), some do not and require the separate "sleeve". So exactly what "length" are folks talking about???

[Overkill-F1]

Originally Posted by Overkill-F1

A quick measurement of a C8BA-6312-B pulley, from a '52 F1, C1BA/8RT:
overall length 3 11/16",
from rear to center of 1st pulley 2",
from rear to center of 2nd pulley 3 1/4".
Terry

The above measurements are for a pulley that uses a separate sleeve for the oil seal, Terry

Originally Posted by Bored&Stroked

Also, when you're talking about "length" in these conversations, one needs to ensure that we're all talking about the same thing --- some 49-53 pulley's have the oil seal surface an integral part of them (like the earlier pulleys), some do not and require the separate "sleeve". So exactly what "length" are folks talking about???