Secrets Magazine INDEX

CRANKSHAFT 
PULLEYS

UPDATED  6/10/2024

NOTE:
WE CAN MAKE YOU ANY SIZED PULLEY YOU CAN DREAM UP.
DIAMETER, BELT SIZE, SHANK-LENGTH
SPECIAL ORDERS TAKE ABOUT 2 WEEKS

IF THERE IS A "BUY" BUTTON IT IS IN STOCK

ABOUT OUR PULLEYS

In the 1930’s George Riley, the famous race engine designer, discovered that stock Model "A" water pumps would spin too fast for the best rate of cooling at higher engine RPMs, like normal traffic today AND RACING. 


If you drive fast you'll need this important part . . . 

If you race, this is the one that won't explode from centrifugal force. 

FIT FORD MODEL "A" & "B" (1928-1932)  ENGINES

Steel, One Piece, Machined From Billet.
         "An Exceptionally Fine Piece Of Equipment!"
Finest Quality, Precision, Fully CNC Machined And Balanced.
Hi-speed Design Has A Reduced Diameter To 3-1/2".
Reduces Water Overflow & Foam/Mass Build up By Slowing Pump RPM Approximately 28%.
Best For Higher Road Speeds.
Precision Degree Timing Marks.
Use Our V-belt, Sized Slightly Shorter For A Neat Appearance.
Alternator: Normal Charging Occurs After A Quick Rev-up To 1500 Rpm.
Generator: The 3rd Brush Can Be Moved To Increase Charge.
Steel Pulleys Last Many Engine Lifetimes.
Front Oil Seal: Aluminum Pulleys: Allow the seals to cut into the shank and leak AND Aluminum Can "Give" At The Crank Nut Or Mount Bolt and Loosen.
Safety: Steel Pulleys Do Not Explode Or Crack Like Cast Iron Pulleys In High Speed Environments.
Be Safe, Steel Is Required By Serious Professionals.
CRANKSHAFT PULLEY - Small 3.5" 
5/8" SHEEVE
HI-SPEED
 $134.95
(our best seller)
Comes with grade-8 bolt and washer.
  • Black Oxide Coating.
  • 3.5" diameter Hi-Speed sized.
  • Uses 5/8" Belt
  • Optional belt listed down below.
DUAL CRANKSHAFT - SMALL
 "AC" PULLEY HI-SPEED 3.5" DIA.

 $185.00   SPECIAL ORDER

CALL OR EMAIL- Alway 2 two weeks.
DESIGNED FOR USE WITH
 air-conditioning
CAN BE USED FOR OTHER APPLICATIONS
  • Steel with timing marks and hardware.
  • 5/8" and 3/8" belts
  • 5/8" belt runs true to pump and gen/alt
  • 3.5" diameter
DUAL CRANKSHAFT PULLEY-SMALL
Small 3.5" DIA.
Steel Dual 5/8" Belts

$199.95
SPECIAL ORDER -  2 weeks
call 513-724-9000
Two 5/8" belts - 3.5" Dia. (Hi-Speed)
With grade 8 bolt & washer
Timing marks
Uses are varied.
Run optional like "blowers" and
 "air conditioning" equipment.
CRANKSHAFT PULLEY - LARGE 5.5"
HI-SPEED
LARGE  5.5"  Dia. Stock Size
Steel Single 5/8 Belt
Superior to original cast iron pulleys.
Superior to aftermarket aluminum pulleys.

out of stock- temporally
Please call and we'll make what you need.
$225.00
Steel, with grade-8 bolt & washer
to replace ratchet bolt.
Has timing marks.
Matches Ford Mechanical Specs & Performance
Use 5/8" Belt
- ALSO - 
  • DUAL CRANKSHAFT-Large Dual 5.5" dia.
  • TWO 5/8" SHEAVES
  • Outer belt runs true to pump and gen/alt.
  • Hi-Speed
  • $400.00
    SPECIAL ORDER
  • CALL 513-724-9000
MOUNTING BOLT & WASHER
$12.00         IN STOCK
Grade 8 Bolt is to be torqued to 125 foot pounds of torque.
  • This set comes with each pulley.             
V-BELT 5/8" - Short
$16.95

IN STOCK

Our shorter V-belt 

takes up the combined slack of our 3.50" crank pulley and swings the alternator or generator back up to its normal position.

Scalded Dog Speed Parts, 3860 Cain Run Rd, Batavia OH 45103.
Phone 513-724-9000, email  [email protected]