Product Summary

1 quarts Capacity, 3" Overall Height, Outlet Size

  • Fabricated aluminum catch can measures 8x6x3-inches
  • Can be used as a coolant reservoir or for oil overflow
  • Universal hardware allows horizontal or vertical mounting
  • 1-quart capacity (when mounted vertically)
  • Fits within fender area of many GM muscle car applications

Key Specs

BrandSpeedway Motors

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Designed to be a stronger, more durable coolant overflow tank over a stock plastic unit - our all-new Fabricated Aluminum Hidden Coolant Expansion Tank was designed to be mounted inside of nearly any dome-shaped GM car fender, hidden from view; if desired, to retain that flush, factory underhood appearance.

  • Fabricated aluminum construction
  • Designed to be mounted, hidden inside the front fender of your 1966-72 GM car
  • Universal mounting system
  • 8" L x 6" W x 3" H
  • 5/16" tube inlet/outlet

Coolant tank measures 8" L x 6" W x 3" H features a unique adjustable mounting system that allows this piece to be mounted anywhere you see fit and the special domed shape allows for the tank to be mounted inside your fender. Some will choose to hide the race-inspired fabricated aluminum coolant tank, others can choose to proudly display their go-fast parts how they choose.


  • (1) Expansion tank
  • (2) Tank brackets
  • (4) Carriage bolts
  • (4) 1/4" standard flat washers
  • (4) 1/4"-28 thin Nyloc nuts


BrandSpeedway Motors
Capacity1 quart
Overall Length8"
Overall Width6"
Overall Height3"
Outlet Size
Outlet Fitting5/16" tube
Inlet Fitting5/16" tube
Material TypeAluminum
Hardware IncludedYes
Sold in QuantityEach
Notesbrackets and hardware included