Overview
The Advance Adapters 716691-AA is an aluminum conversion radiator for GM V8 engines. It has a cross flow design, a transmission cooler and a temperature sensor provision, and it has two cores.
The core tubes are 1 inch wide with 16 fins per inch, and the radiator is 100% TIG welded. Advance Adapters air tests each radiator three times during construction, because air finds a leak before water does.
Key features
- Aluminum construction with 1 inch wide tubes and 16 fins per inch
- 100% TIG welded tanks and an aluminum mounting angle
- Cross flow design places the radiator cap on the cold side
- Temperature sensor provision with a 3/8 inch NPT fitting in the cold side tank
- With transmission cooler
- Billet filler neck for a standard GM overflow system style cap
The cross flow design places the cap on the low pressure side. Fluid pulled back during cooling returns to the radiator during normal operation rather than spilling into the recovery tank.
Choosing a conversion radiator
A conversion radiator replaces a factory unit in a swap or custom build, so the first step is confirming space for the core, fan and shroud. Cross flow designs route coolant from one side to the other, which often suits swaps where the inlet and outlet sit at a different height than stock. Fan clearance and hose routing should be checked before the radiator is set in place.
A transmission cooler built into the tank is useful when a vehicle tows or runs hard, though heavy-duty setups may still need an external cooler. Keep the cooling system matched: a new radiator works best with a fresh thermostat, correct fan setup and clean coolant. A filler neck cap that does not seal properly can cause coolant loss, so verify the cap after installing.
- Measure fan clearance before setting the radiator height
- Plan hose routing around the chosen filler neck
- Use the 3/8 inch NPT fitting for the temperature sensor
- Check cap sealing after the first heat cycle
Specifications
| Brand | Advance Adapters |
|---|---|
| Part number | 716691-AA |
| UPC | 70000253779 |
| Engine | GM V8 |
| Type | Conversion |
| Number of cores | Two |
| Tube width | 1 inch |
| Fins | 16 per inch |
| Temperature sensor fitting | 3/8 inch NPT, cold side of tank |
| Filler neck | Billet, for GM overflow system style cap, 3/4 inch depth |
| Recommended cap pressure | 15 lbs. to 22 lbs. |
| Mounting flange | Aluminum angle, TIG welded, no bolt holes |
| Transmission cooler | Included |
Vehicle fitment
It is built for GM V8 engines. Fit depends on the engine, mounting location, and body and cooling layout.
The mounting flange has no bolt holes, so the installer sets the mounting pattern. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The mounting flange is an aluminum angle with no bolt holes, so the installer chooses the mounting pattern and height. That adjustment centers the radiator to the water pump and can help when a body lift is installed.
Use a standard GM overflow system style cap with 3/4 inch depth on the billet filler neck, and match the recommended 15 lbs. to 22 lbs. cap pressure. Let the engine cool before opening the cap.
What’s included
The package includes the radiator with a transmission cooler. Check mounting bolts, the cap and hose kits against your installation before starting.
