Factory 7 Blade Chevy Radiator Fan

I also tune with hptuners so i can adjust the fan speed to what i want.

Factory 7 blade chevy radiator fan.

New oem gm engine cooling fan clutch blade 15644302 chevy gmc v6 v8 1984 1996. 4 8 out of 5 stars 21. In 1969 the clutched fan changed to a seven blade design still 18 inches in diameter with aluminum fan blades. The inside radius on the factory fan shroud matches the radius of the curved tips on a 772 blade.

Allstar all30100 18 diameter 5 8 pilot hole steel mechanical type radiator fan with 6 blade. The gm part number is 3999260 it is a 19 5 inch 7 blade fan. A factory plastic fan shroud and the 772 blade are designed to be used together. The simple answer is.

I believe oem blades number either 5 and 7 blades for each fan or 7 and 9 blades. My radiator had a small leak but was very rusty. I was having overheating problems and went through the cooling system. My 318 will barely say under 215 in traffic with the factory hd cooling system new glen ray 26 radiator fan clutch 7 blade fan and new motor.

Point of reference my 454 3 4 ton truck uses a mechanical fan. Only 1 left in stock order soon. Cooling is all about. Get a real fan.

Only 4 left in stock. I am about to prove if a nos pump solves my problem since the gmb after crap market pump died in the first 5 months. One with 7 to 9 blades. By accident i figured it out.

Cars with ac or k02 received the same fans as the 1969 z28 and l78 copo cars. After i sawed a small hole in my factory 1970 plastic fan shroud on my driver using a non 772 blade. Alloyworks 4 row aluminum radiator shroud fan relay for 1932 ford hot rod chevy 350 v8 engine pro us. A correct oer authorized reproduction of the original style radiator fan blade which was installed as original equipment on various gm models with 18 diameter 7 blade fan.

There were two manufacturers of this fan and a mid year fan pitch change 2 to 2 25 yielding four variants of this fan. These don t have the oem blade count to my understanding however i haven t had a cooling problem. You can not run the ac in 110f days in arizona in traffic. And a thermal fan clutch.

I can and have put 10 000 pounds of trailer on it plus another thousand in the bed and run it straight up a mountain and never touch 200 degrees.