These include the following: In addition to the standard inclusion of the V03 (Extra Capacity Cooling) package, all LT1 Caprice 9C1 (Police) cars also include SEO 1T1 (Silicone Radiator and Heater Hoses).

This is a major safety factor as it allows one to drive the partially disabled vehicle to the nearest service center.

The head or the intake manifold? Not sure where to install on the cylinder head if that is a good location. Reverse flow cooling is vastly superior to the conventional cooling systems used on virtually all other engines. ����x�.��йs`�> t��_=ia����AK�7������e)HO�Q���! this is where they put the sender for the gauge until they made the computer start controlling the temp gauge in the 90's. One, it keeps the intake less cluttered. In low speed mode, the fans are powered in series. SEO 1T1 consists of special green radiator and heater hoses made out of pure silicone rubber. Additionally, the PCM will turn off the fans at higher vehicle speeds (above 70 MPH I believe) since running fans can actually impede airflow through the radiator at high speed.

I've always installed them in the intake...near the thermostat housing. All current LT1s come from the factory with a relatively low 180 degree temperature thermostat. Late '94 and newer F-car models operate both fans simultaneously in either a low or a high speed mode by using 3 relays. The new settings were turning the primary fan on at a setting lower than the thermostat itself would open.,,,, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada.

In LT1 F-cars, coolant from the throttle body connects to the heater outlet via a vented "tee" connector, where any trapped air in the system can be bled off manually. If the vehicle has the 140 amp alternator (KG9), then it also has the newer design configuration which operates the fans simultaneously in low or high speed modes.

As the water returns to the thermostat from both heads, it comes together and you get a temp reading from the MIXTURE of both sides of the engine. The steam vents are connected together by a crossover vent tube at the back of the heads, which directs any steam and a small flow of coolant to the front of the engine where it flows through the throttle body, warming it for improved cold weather performance. In actual operation I saw temperatures while moving about 10 degrees lower than what I observed with the 180 degree thermostat. Also included with the Police package is SEO 7L9 (Power Steering Fluid Cooler). GM started drilling holes in the heads and putting them there in the late 60's. At first I installed the Hypertech program without the recommended 160 degree thermostat in order to observe the operation of the fans. "Detroit hasn't felt any real pride since George Bush went to Japan and vomited on their auto executives, I tell you whut". Finally, certain Diagnostic Trouble Codes (DTCs) may cause the PCM to turn on one or both fans. Since the water pump is no longer belt driven, the vehicle will still be driveable even if the serpentine belt fails. I like the drivers side head but I want an accurate reading. I have both too; one is machincal and gives me a passenger side head reading and the other one is an electric on the drivers side head. Each fan or fan mode has a minimum running time. I have more recently purchased the Hypertech Power Programmer, which re-programs the PCM to turn the primary fan on at 176 degrees (instead of 225), and the secondary fan on at 191 (instead of 232). Optional F-car LT1 Cooling Systems: There is only one option in an LT1 F-car with respect to cooling, and that is an engine oil cooler (KC4).