Mechanical Four Blade Racing Fans
4 blade fans produce greater air flow than 6 blades fans
Solid steel or Aluminum construction
Dual bolt pattern
Available in 15", 17", 18" or 19" diameter
Joes Thermo Spacer
Plumb additional lines to your heads for better cooling; install a water temp sending unit and your water temp gauge all in the same spacer. The base has an O-Ring for sealing to your intake manifold. Made from 6061-T6 aluminum. Three 1/2" NPT ports and one 5/8-18 port for mechanical temp gauge probes. Order P/N 42730 JOES Water Temp Plug to use with electric temp gauge probes.
Wehrs Q-Jet Adapter
This will adapt to a 4412 Holley 2BRL to GM Q-Jet intake over the two rear holes. Tapered from carb diameter to intake diameter for superior HP. Adapters are 1'' tall.
Joes Expansion Tank
Installing a JOES Expansion Tank will help keep your engine cool!. A 1/4" NPT fitting is welded in at the top for an air bleed line, a 1/2" pipe fitting for a line to your water pump is near the bottom and an 1/8" fitting for water overflow is provided in the 6061-T6 billet aluminum filler cap housing.
Wehrs Carb Slider
Carb adapter fits a 2BRL 500cfm Holley into a 4BRL Holley pattern intake. Adapter is flared and 1" tall, they are slotted to allow for the perfect placement of your carb.
Wehrs GM 604 Crate Spacer
Want to get more bottom end out of your crate motor? Here is the answer to that problem. Our 604 Crate spacer is 1/4" tall and is flared into the intake, which gives you more bottom end power off the corners.