Pulleys - What is are standard sizing early 460
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Pulleys - What is are standard sizing early 460
Hi,
After the stock pulley size for the Crank and Water Pump pulleys for early 460 -(385)
Have searched the forum , and checked out summit but cannot see simple pulley size listed for factory engine. Lots of answers but nothing that I was see.
During house move, I decided that I no longer needed the factory old pulleys... but now wish I kept them to have on records the various spec It was a back then... 3 x belt crank and 2 x belt waterpump.
I found another old photo that bad angle was for the crank pulley looked to be around 7.4'
What Currently Have below
Complete - KIT - https://www.cvfracing.com/Big-Block-Ford-V-Belt-Pulley-System-A-C-p/460-ac-system.htm
Waterpump -
http://www.cvfracing.com/Ford-Big-Block-Water-Pump-Pulley-2V-High-Flow-p/bbfl2wp-hf.htm
Diameter: 5.2" Overall Length: 2.3" Grooves: 2 Bolt Pattern: 4 Bolt Bolt Circle: 1.75" Pilot Diameter: 5/8" & 3/4"
Crank
https://www.cvfracing.com/Ford-Big-Block-Crank-Pulley-3V-p/bbfl3cr.htm
Diameter: 5.7" Overall Length: 2.6" Grooves: 3 Bolt Pattern: 4 Bolt Bolt Circle: 3.3" Pilot Diameter: 2.2"
Waterpump
https://www.cvfracing.com/Black-Mechanical-Ford-Water-Pump-Big-Block-Engine-p/b-bbfl-wp.htm
High Flow Aluminum Water Pump
- Clockwise Rotation
After the stock pulley size for the Crank and Water Pump pulleys for early 460 -(385)
Have searched the forum , and checked out summit but cannot see simple pulley size listed for factory engine. Lots of answers but nothing that I was see.
During house move, I decided that I no longer needed the factory old pulleys... but now wish I kept them to have on records the various spec It was a back then... 3 x belt crank and 2 x belt waterpump.
I found another old photo that bad angle was for the crank pulley looked to be around 7.4'
What Currently Have below
Complete - KIT - https://www.cvfracing.com/Big-Block-Ford-V-Belt-Pulley-System-A-C-p/460-ac-system.htm
Waterpump -
http://www.cvfracing.com/Ford-Big-Block-Water-Pump-Pulley-2V-High-Flow-p/bbfl2wp-hf.htm
Diameter: 5.2" Overall Length: 2.3" Grooves: 2 Bolt Pattern: 4 Bolt Bolt Circle: 1.75" Pilot Diameter: 5/8" & 3/4"
Crank
https://www.cvfracing.com/Ford-Big-Block-Crank-Pulley-3V-p/bbfl3cr.htm
Diameter: 5.7" Overall Length: 2.6" Grooves: 3 Bolt Pattern: 4 Bolt Bolt Circle: 3.3" Pilot Diameter: 2.2"
Waterpump
https://www.cvfracing.com/Black-Mechanical-Ford-Water-Pump-Big-Block-Engine-p/b-bbfl-wp.htm
High Flow Aluminum Water Pump
- Clockwise Rotation
bigblockfordfxstb- Posts : 125
Join date : 2015-06-22
Location : Australia
Re: Pulleys - What is are standard sizing early 460
My stock mid-70's vintage Lincoln/T-bird 460 pulley diameters as measured are: (A)Crank-Alternator belt sheave O.D. is 8.00", Water pump/PS pump sheave is 7 5/8" O.D. and Water pump/A/C compressor sheave is 7 5/8" O.D. (B)Water pump 2 sheave pulley is 5 7/8" O.D.
Hope this helps
Side note: Just looking at the numbers shows the factory water pump pulley/crank pulley set has the water pump over driven/faster by 22-23% of the crank shaft speed whereas the CVF pulleys has the water pump over driven/faster by only 8-9%, is a pretty big difference but my math could be wrong.
Hope this helps
Side note: Just looking at the numbers shows the factory water pump pulley/crank pulley set has the water pump over driven/faster by 22-23% of the crank shaft speed whereas the CVF pulleys has the water pump over driven/faster by only 8-9%, is a pretty big difference but my math could be wrong.
aquartlow- Posts : 167
Join date : 2010-02-05
Age : 56
Location : Summerfield, Fl
Re: Pulleys - What is are standard sizing early 460
Thannks for your info.!
I possibly found a old measurement I did in 2016 of my pulleys ... ive put them next the CVF items. Using that weblink (used this to sort out my alt pulley size rpm for charge at idle / low rpm) the ratio is not much difference to the overall ratio... CVF have just responded saying that is fine to show difference would need to be alot higher in ratio 30%+ to see a differenc. Ill punch in your ratios one at a computer not mobile. ...
Waterpump
CVF Diameter: 5.2" - 132.08mm 1.09
Mine Measure 6.2" - 160mm 1.19m
Crank
CVF - 5.7" - 144.78mm
Mine Measured 7.48" - 190mm
https://www.blocklayer.com/pulley-belt.aspx
CVF
Belt Length 833
Ratio 1 : 1.09
RPM Small 1090.9
RPM Large 1000
Belt Speed 452.4 m / min
Stock
Belt Length 951
Ratio 1 : 1.19
RPM Small 1187.5
RPM Large 1000
Belt Speed 596.9 m / min
I possibly found a old measurement I did in 2016 of my pulleys ... ive put them next the CVF items. Using that weblink (used this to sort out my alt pulley size rpm for charge at idle / low rpm) the ratio is not much difference to the overall ratio... CVF have just responded saying that is fine to show difference would need to be alot higher in ratio 30%+ to see a differenc. Ill punch in your ratios one at a computer not mobile. ...
Waterpump
CVF Diameter: 5.2" - 132.08mm 1.09
Mine Measure 6.2" - 160mm 1.19m
Crank
CVF - 5.7" - 144.78mm
Mine Measured 7.48" - 190mm
https://www.blocklayer.com/pulley-belt.aspx
CVF
Belt Length 833
Ratio 1 : 1.09
RPM Small 1090.9
RPM Large 1000
Belt Speed 452.4 m / min
Stock
Belt Length 951
Ratio 1 : 1.19
RPM Small 1187.5
RPM Large 1000
Belt Speed 596.9 m / min
bigblockfordfxstb- Posts : 125
Join date : 2015-06-22
Location : Australia
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