Skip to content
  • Home
  • Products
    • Chevy Pulley Systems
      • Chevy Small Block Pulley Systems
      • Chevy Big Block Pulley Systems
      • Chevy LS Pulley Systems
      • Chevy LS Supercharger Pulley Systems
      • Chevy LT Victory Series Kit
      • Chevy Driver Series Pulley Systems
    • Ford Pulley Systems
      • Ford Small Block Pulley Systems
      • Ford 351 Cleveland Pulley Systems
      • Ford FE Pulley Systems
      • Ford 429-460 Big Block Pulley Systems
      • Ford 351 Clevor Pulley Systems
  • Parts
    • Power Steering Hose Kits
    • Reservoirs
    • Thermostat Housing
    • Compressor Mounts
  • Resources
    • FAQs
    • How to Choose an Alternator
    • Bolt Torque Specs
    • Cooling System Basics
    • Videos
    • Blog
  • Dealers
  • Contact
  • Sign In

1-877-337-0688
Proudly Made in the USA
0

Concept ONE Pulley Systems

  • Home
  • Products
    • Chevy Pulley Systems
      • Chevy Small Block Pulley Systems
      • Chevy Big Block Pulley Systems
      • Chevy LS Pulley Systems
      • Chevy LS Supercharger Pulley Systems
      • Chevy LT Victory Series Kit
      • Chevy Driver Series Pulley Systems
    • Ford Pulley Systems
      • Ford Small Block Pulley Systems
      • Ford 351 Cleveland Pulley Systems
      • Ford FE Pulley Systems
      • Ford 429-460 Big Block Pulley Systems
      • Ford 351 Clevor Pulley Systems
  • Parts
    • Power Steering Hose Kits
    • Reservoirs
    • Thermostat Housing
    • Compressor Mounts
  • Resources
    • FAQs
    • How to Choose an Alternator
    • Bolt Torque Specs
    • Cooling System Basics
    • Videos
    • Blog
  • Dealers
  • Contact
Proudly Made in the USA
  • Home
  • Products
    • Chevy Pulley Systems
      • Chevy Small Block Pulley Systems
      • Chevy Big Block Pulley Systems
      • Chevy LS Pulley Systems
      • Chevy LS Supercharger Pulley Systems
      • Chevy LT Victory Series Kit
      • Chevy Driver Series Pulley Systems
    • Ford Pulley Systems
      • Ford Small Block Pulley Systems
      • Ford 351 Cleveland Pulley Systems
      • Ford FE Pulley Systems
      • Ford 429-460 Big Block Pulley Systems
      • Ford 351 Clevor Pulley Systems
  • Parts
    • Power Steering Hose Kits
    • Reservoirs
    • Thermostat Housing
    • Compressor Mounts
  • Resources
    • FAQs
    • How to Choose an Alternator
    • Bolt Torque Specs
    • Cooling System Basics
    • Videos
    • Blog
  • Dealers
  • Contact
Proudly Made in the USA

1-877-337-0688

Ford Small Block Application Info

Small Block Ford: Short vs Long Water Pump plus Balancer and Block Info

Concept One offers serpentine pulley kits for 289, 302, 351W Small Block Ford engines in two configurations: Long water pump and short water pump. Most applications -- such as a "bumpside" pickup or a 69 Mustang -- can utilize the long water pump version. However, you may have a 32 Ford with an extra tight engine bay or a 65 Mustang with an extra thick radiator and fan combination or an early Bronco. If this sounds like you, consider our pulley kit for short water pumps. The design adds 1.55" clearance between your engine and your radiator/fan. It requires a timing cover and water pump from a 94-95 5.0 Mustang, sold separately.

Short or long style, Concept One serpentine pulley kits require the use of a reverse rotation water pump.  If you're not sure what water pump you have or need, please do not hesitate to give us a call or email us pictures of your water pump and engine bay before ordering.  We are happy to help.

Short Water Pump Part Numbers

Short water pump pulley systems (SFM part numbers) are a good choice for applications where there is a minimum amount of room between the engine and radiator. This combination is 1-1/2 inches shorter than the long water pump kit. Requires the use of a reverse rotation 94-95 Mustang water pump and timing cover and electric fuel pump.

Water Pump/Timing Cover Kit:  Ford Performance #M-8501-A50 (1994-95 Mustang). Note: This part number is no longer available from Ford Performace as a kit, but the part number is kept here for reference.

Water Pump:

1994-95 Mustang 5.0 -  Ford Racing #M-8501-D50.  Alternate/OEM Part Number(s): Ford #F4ZZ-8501-B, Gates #43065, GMB #1251920 (OE) or #1251920P (performance), AC Delco #232325, Airtex #AW4087

Timing Cover:

1994-95 Mustang 5.0 -  Alternate/OEM Part Number(s): Ford #F1SZ-6019-A, All-Star #ALL90015, ATP #103039, Pioneer #500302T, Dorman #635-106

 


Long Water Pump Part Numbers 

Long water pump (SFL part numbers) pulley systems are the same length as factory Ford standard rotation systems and will fit most applications. Must change to a reverse rotation water pump, but most 1970 & up timing covers will work. Works with electric or mechanical fuel pump.

Waterpump:

1986-93 Mustang 5.0 -  Ford Racing #M-8501-C50.  Alternate/OEM Part Number(s): Ford #F3ZZ-8501-B, Gates #43272 (OE) or #43272P (performance), GMB #1251560 (OE) or #1251560P (performance), AC Delco #252669, Motorcraft #PW291

Timing Cover:  Ford Racing #M-6059-D351 or 1970 & up equivalent.  Alternate/OEM Part Number(s): California Pony Cars #ENG-000-408, Pioneer #500302S, Scott Drake #C5OZ-6019-B, Dorman #635-107

 


Which Water Pump and Timing Cover Do I Have?

Use these pictures to identify your water pump and timing cover. As always, there are exceptions to this illustration. Particularly, some late model long water pump timing covers may have the fuel pump boss either blocked off or not there at all. Don't hesitate to call us if you have a question.

  • Short water pump and Timing cover
  • This timing cover DOES NOT have provision for a mechanical fuel pump
  • This timing cover DOES NOT have provision for a dipstick tube
  • Timing cover used on 1994-95 Mustangs, various Explorers, and older Ford Racing crate engines
  • This is the style required for our Short Water pump-style pulley kits.
   
  • Long Water pump and Timing cover
  • This timing cover has provision for mechanical fuel pump
  • Most common timing cover used on many Ford models
  • This is the style required for our Long water pump-style pulley kits.

 


Crankshaft Damper aka Harmonic Balancer

All Concept One small block Ford pulley kits are designed for the factory 4 bolt pattern damper shown here

Crankshaft Damper:

1970-80 302 and 1970-97 351 engines, 28 oz. - Ford Racing #M-6316-K351.  Alternate/OEM Part Number(s):  Ford #E8TZ-6316-B, Powerbond #PB1214, Pioneer #DA3513, Dorman #594011

1981-95 5.0 engines, 50 oz., - Ford Racing #M-6316-M50.  Alternate/OEM Part Number(s):  Ford #E4TZ-6316-A, Powerbond #PB1084, Pioneer #DA3021, Dorman #594024
   

Ford Racing and aftermarket 4 bolt dampers like the one shown here can be used with the addition of a crankshaft pulley spacer

Crankshaft Damper:

1970-80 302 and 1970-97 351 engines, 28 oz., - Ford Racing #M-6316-C351 or equivalent

1981-93 5.0 engines, 50 oz., - Ford Racing #M-6316-A50 or equivalent

   

Crankshaft Pulley Spacer:  Ford Racing #M-8510-B351/ thickness: 0.950".  Alternate/OEM Part Number(s):  Summit #329707

Crankshaft Pulley Spacer:  Ford Racing #M-8510-C351/ thickness: 0.875" / use if your engine has double roller timing chain.  Alternate/OEM Part Number(s):  Summit #329708

 


Engine Block Accessory Hole

Most 1970 and newer blocks have an accessory hole on the passenger side of the front face of the block. Most older blocks do not have this hole. Our standard "long water pump" pulley kits have a bracket that bolts to this hole, but we have an alternate bracket that bolts to the ground strap hole for blocks where this hole is not present. There is no difference in price, we just need to know if this hole is present or not.

Boss blocks including the new Ford Racing Boss block have an unmachined boss and no drilled and tapped hole. To make matters worse, the ground strap hole has been moved on this block so our alternate bracket will not fit. The best solution for Boss blocks is to grind the unmachined surface as flat as possible and drill and tap the hole for our standard bracket.


Additional Notes

  • Concept One Pulley Kits are designed for use with electric cooling fans. If you need to run a mechanical fan, we can make modifications to the water pump pulley. Also, if you use a mechanical fan, remember that this kit uses a reverse rotation water pump, so make sure the fan is a reverse rotation fan.
  • When using Concept One pulley kits in older Fords with the radiator inlet on the passenger side, lower radiator serpentine conversion hoses are available for some applications or custom hoses such as Cool-Flex® can be used to reroute the radiator hose.
  • Ford 90° thermostat housings are recommended
  • Typical rack & pinion units used in the aftermarket are the Mustang 2 (less common) and the Fox Body Mustang / Thunderbird racks (more common).  Mustang 2 racks generally need to run in the 800-900 psi pressure range.  Fox Body Mustang / Thunderbird racks (NAPA part number often used - 22-203F) generally run in the 1100-1200 psi range

BUY

Chevy Pulley Systems

Ford Pulley Systems

Parts

LEARN

FAQ

Choose an alternator

Bolt Torque Specs

Cooling System Basics

Videos

Blog

MORE

About Us

Contact Us

How to Buy

Return Policy

Privacy Policy

Terms & Conditions

CONTACT US

Concept ONE Pulley Systems

6320 Georgia Highway 400
Cumming, GA 30028
1-877-337-0688
infoteam@c1pulleys.com

American Express Apple Pay Diners Club Discover Mastercard PayPal Shop Pay Visa
© Copyright 2025, Concept ONE Pulley Systems.