Cooling system



Water Pumps

Please identify 472/500, 425, or 369 engine, and 1 groove or 2 groove PS pulley

New Replacement Water Pump Early style $120
For use with front belt drive systems with 2 V-belts driving the AC compressor (i.e. factory '68-'73 with 3-groove crank pulley and 2 groove AC compressor pulley)

New Replacement Water Pump Late style $85
For use with factory front belt drive systems with 1 belt driving the AC compressor (i.e. factory '74-newer or aftermarket with 2-groove crank pulley and 1 groove AC compressor pulley) or engines without AC

New Replacement Water Pump Serpentine style $120
For use with serpentine systems using a single large bracket that mopunts to the front of the water pump. Note: this is not a reverse rotation water pump

High Volume Water Pump Early style, by Flow Kooler $165
For use with front belt drive systems with 2 V-belts driving the AC compressor (i.e. factory '68-'73 with 3-groove crank pulley and 2 groove AC compressor pulley)

High Volume Water Pump Late style, by Flow Kooler $165
For use with factory front belt drive systems with 1 belt driving the AC compressor (i.e. factory '74-newer or aftermarket with 2-groove crank pulley and 1 groove AC compressor pulley) or engines without AC

High Volume Water Pump Serpentine style, by Flow Kooler $195
For use with serpentine systems using a single large bracket that mopunts to the front of the water pump. Note: this is not a reverse rotation water pump

425 and 500 Stainless Steel Timing Covers

Be careful of people advertising cheap high-volume water pumps, and even cheaper 'stock' replacement pumps. There are 3 pumps available new: Cheap junk (notably substandard compared to the OE pumps, sold by many as 'OE replacment'), high quality stock replacement (sold by us and some others as 'stock replacement', but sold incorrectly as 'high volume' by the unscrupulous, simply because they are better than the cheap junk replacement pumps), and true high volume pumps, which are only made by FlowKooler. The FlowKooler pump pushes roughly 30% more coolant at idle, than the factory and high quality replacement pumps. The factory and high quality replacement pumps push nearly that much more at idle than the cheap junk replacement pumps. Looks can be deceiving, but if it's not a FlowKooler, it's not high volume.

Stainless Steel Timing Covers

425 and 500 Stainless Steel Timing Covers Back Side of Stainless Timing Cover

These high quality covers are stamped from a sheet of stainless steel, with integrated lip to support the crank seal and welded oil pan seal lip, to fit and work like the originals, but with superior looks and longer life.

472/500 Timing Cover VT1021 $95

425/368 Timing Cover VT1022 $95

Other Cooling System Components

Chevy Water Pump Adapter Kit Billet Aluminum $95

Cadillac Thermostat

Thermostat, Standard, 180 degree Low Temp $15

Thermostat, Standard, 195 degree OE Temp $15

Thermostat, High Flow, 180 degree Low Temp $35

Thermostat, High Flow, 195 degree OE Temp $35

Billet Water Neck

Thermostat Housing / Water Neck Billet Aluminum $60
Stock configuration, machined finish. Includes gaskets and bolts.

Thermostat Housing / Water Neck Billet Aluminum $75
Stock configuration, polished. Includes gaskets and bolts.

1 inch Offset Billet Water Neck

Thermostat Housing / Water Neck, 1" Offset Billet Aluminum $135
Includes gaskets and bolts.
For extra AC compressor clearance. Offset 1" toward passenger's side / rear.
This water neck was designed for, and is included in, our R4 AC bracket kit.

Radiator Cap 20 PSI $12 Correct pressure for Cadillac applications.
Fits most common radiators in Cadillacs and swap vehicles.

Cooling System Plugs

Cad Company Block Hardware Kit $40
Includes freeze plugs (brass), cam plug, all 7 galley plugs, 4 brass disc type head freeze plugs, 2 smog rail plugs, and block/ head dowel pins.
Freeze Plug Kit (Standard) Steel $15 Brass $20
Rear cam plug, 6 block exp. plugs, 2 oil galley plugs, 2 threaded oil galley plugs
Block Expansion Plugs Steel $0.75 ea Brass $2.50 ea 6 per engine
Block Coolant Sensor Holes, Threaded Plug $9.50 ea 0-2 per engine
Head Coolant Plug, Disc Style Steel $0.90 Brass $1.25 4-6 per engine
Head Coolant Plug, Cup Style Steel $1.25 Brass $1.25 0-2 per engine
90º Press In Water Outlet $50 1 per engine, 425 only
Head Coolant Plug, Cup Style Steel $0.50 Brass $1.75 1 per engine, 425 only, replaces press in water outlet
Head Coolant Plug, Threaded $9.50 0-2 per engine
Head Water Outlet Kit, Threaded 90º $25 0-2 per engine

Note: Stock heads will have 3 plugs per head. 2 per head will be the disc type (the hole will have a step so the plug can only go in so far). The third will be one of the following: Disc type plug like the other 2 (mostly ‘68-’69 engines) The press in cup type (like a standard freeze plug) (some ‘68-’69 engines and 425 heads). The 425 heads will have one plug and one press in 90º heater outlet. Threaded head plugs (pipe thread) - usually one plug and one heater outlet.

Cad Company
The originators of performance parts for the Cad 472"/500"/425" !