I bought a generic 6 blade fan blade in the middle 70s napa.
Chevy 6 blade fan.
The clutch is a hd made in usa unit modified to adapt the duramax fan to the 6 5 td water pump and engagement is approximately 15df sooner then your stock clutch for better cooling.
Fl5717 17 6 blade oem style fan blade reproduction of the original style fan blade used for most gm applications.
Low speed operation 6 blade 18 diameter 3707662 became available in 1954 and replaced the earlier 6 blade fan 604225.
That s what it says for the 1937 1955 6 blade fan listed in the 1929 57 master parts accessories catalog at the link above.
Allstar all30100 18 diameter 5 8 pilot hole steel mechanical type radiator fan with 6 blade.
You will find the fit and function will work perfectly for your chevy.
One 6 blade unit is listed up through 1957.
Only 1 left in stock order soon.
Manufactured by flex a lite for performance and reliability this oem style fan blade is to be used with a fan clutch not included.
Six blade steel non flex fan blade design maximizes airflow for the best cooling the solid steel fan blades will not flatten out like a flex fan at high rpm recommended for race applications such as modified sport mod late model stock car hobby stock etc.
6 high pitch blades for maximum air flow uses with all types of engines requires spacer p n 563653 on cars equipped with late model power steering this chevrolet replacement cooling fan blade has been manufactured to meet or exceed factory specifications and performance.
Just stand in front of the grill it will almost pull you in.
This blade is the same gm part as used on all duramax diesel engines.
They may be replacement blades are there any codes numbers on the blades.
This fan really sucks.
Alloyworks 4 row aluminum radiator shroud fan relay for 1932 ford hot rod chevy 350 v8 engine pro us.
4 8 out of 5 stars 21.
Slotted bolt pattern to fit nearly all v8 standard rotation water pumps.