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Walker Z-520-1 1947-1953 Chevy Pickup Radiator w/o A/C Condenser

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Specs
Material Type:
Copper
Overall Height:
24.25
Overall Width:
20.25
Color:
Black
Transmission Cooler:
Yes
Tube Style:
Downflow
Sold in Quantity:
Each
Overall Thickness:
3.25
Row Quantity:
4
Finish:
Painted
Inlet Location:
Centered
Inlet Size:
1.50
Outlet Location:
Lower Right
Core Height:
19.69
Core Width:
20.00
Core Thickness:
2.75
Tube Size:
1.00
Filler Neck Height:
.88
Shroud:
No
Radiator Style:
Single Pass
MFG. Part #:
Z-520-1
Garage Sale:
No
Notes
1/8" NPT fittings for transmission cooler. 1/4" NPT fitting for drain. 1.25" wide mounting flanges on both sides.
Walker Z-520-1 1947-1953 Chevy Pickup Radiator w/o A/C CondenserWalker Z-520-1 1947-1953 Chevy Pickup Radiator w/o A/C CondenserWalker Z-520-1 1947-1953 Chevy Pickup Radiator w/o A/C CondenserWalker Z-520-1 1947-1953 Chevy Pickup Radiator w/o A/C Condenser
Walker Z-520-1 1947-1953 Chevy Pickup Radiator w/o A/C Condenser

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Details

Reviews

Q & A

What's in the Box

Walker Z-Series radiators feature a 4-row, high-flow copper core which is ideal for use with Big Blocks, blowers, and high compression engines. Built for a direct fit with heavy gauge steel side brackets and mounting holes pre-stamped. Includes a built-in oil cooler for automatic transmissions.

  • Simple bolt-in install
  • Copper core w/ 1-piece brass tanks
  • Vertical tubes every 1/4" and 12 fins per inch of height
  • Heavy duty 12 Ga. steel side brackets w/ pre-drilled holes
  • Use a 15-18 lb. radiator cap
  • Brass drain cock
  • Top Inlet:  Center (1-1/2")
  • Bottom Outlet:  Right (1-3/4")
  • Oil Cooler Fittings:  1/8" pipe thread
  • Condenser Fittings:  #6 and #8 O-ring design
  • Condenser Refrigerant:  R-12 or R-134a

Chevy Chassis W/ Chevy Engine Application Chart (GIF)

Learn more about how radiators work and selecting the proper radiator for your vehicle by reading our tech article. Radiator Cooling Performance.  

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Reduces coolant temps up to 40° F. Prevents coolant temperature from rising excessively under extreme racing conditions. 30 oz. Use a 80% water and 20% Pro-Blend 40 Below mix.

NOTE: Do NOT use with propylene glycol antifreeze, stop leak, or block sealer. Can be used with distilled water and ethylene glycol antifreeze.

Learn more about how cooling systems work with proper coolant mixture and additives by reading our tech article. Cooling System Principles.   

Walker Z-AC520-1 1947-1953 Chevy Pickup Radiator w/ A/C Condenser
(Part #820ZAC5201)
                        

Walker Z-Series radiators feature a 4-row, high-flow copper core which is ideal for use with Big Blocks, blowers, and high compression engines. Built for a direct fit with heavy gauge steel side brackets and mounting holes pre-stamped. Includes a built-in oil cooler for automatic transmissions.

  • Simple bolt-in install
  • Copper core w/ 1-piece brass tanks
  • Vertical tubes every 1/4" and 12 fins per inch of height
  • Heavy duty 12 Ga. steel side brackets w/ pre-drilled holes
  • Use a 15-18 lb. radiator cap
  • Brass drain cock
  • Top Inlet:  Center (1-1/2")
  • Bottom Outlet:  Right (1-3/4")
  • Oil Cooler Fittings:  1/8" pipe thread
  • Condenser Fittings:  #6 and #8 O-ring design
  • Condenser Refrigerant:  R-12 or R-134a

Chevy Chassis W/ Chevy Engine Application Chart (GIF)

Learn more about how radiators work and selecting the proper radiator for your vehicle by reading our tech article. Radiator Cooling Performance.   

Hex Chrome Radiator Cap, 15 Lbs
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This unique hex style cap for radiators. Available in 15 lb. capacity. Brilliant chrome finish.

  • 2-3/8" O.D. of cap top
  • 2-1/4" I.D. of cap top
  • Will fit a standard radiator neck
  • Sealing surface (which sits inside the neck) is 1-1/2" O.D.
  • Cap sides are 7/16" tall

Learn more about cooling systems, how to choose the proper pressure cap, and how they work by reading our tech article. Cooling System Principles.

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Pressure caps for radiators featuring 15-pound capacity. Chrome finish.

  • 2-3/8" O.D. of cap top
  • 2-1/4" I.D. of cap top
  • Will fit a standard radiator neck
  • Sealing surface (which sits inside the neck) is 1-1/2" O.D.
  • Cap sides are 7/16" tall

Learn more about cooling systems, how to choose the proper pressure cap, and how they work by reading our tech article. Cooling System Principles

Cooling Components CCI-1740 Cooling Machine Electric Fan, Style 40
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                        At one time or another we all have had a car overheat. The Ultimate Cooling Machine fan/shroud combos are just the ticket to avoid having it happen again. These 2500 CFM pull-type fans measure 2-5/8" deep at the motor, 2-3/8" at the mounting brackets and 1-1/2" at the high impact shroud.
  • 24.44" wide x 19" high
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  • 12 volt operation
  • Lower engine operating temperatures
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Fan Vehicle Application Chart (GIF)

Learn more about the importance of using a fan shroud in our tech article, Fan Shrouds - A Critical Cooling System Component.

Walker WS70 Radiator Fan Shroud, Style F, 19-1/4 x 20-1/8 Inch
(Part #82070)
                        

Maximize your radiators' effectiveness with a tight-fitting fan shroud. Use of these shrouds has produced temperature drops of up to 30 degrees!

Walker shrouds are vacuum formed from a very dense polyethylene. This high-impact, heat resistant material has a lightly textured, semigloss black finish. The cooling fan hole is not cut out so the installer can tailor that to the exact fan location and diameter.

See Application tab for application information.

Fan Shroud Size Chart (GIF)

Learn more about the importance of using a fan and shroud with our radiators by reading our tech article. Radiator Cooling Performance.

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Water Wetter Tech Info (PDF)

Learn more about how cooling systems work with proper coolant mixture and additives by reading our tech article. Cooling System Principles.