455 swap - should I get a 20 inch fan

Discussion in 'The Big Chill' started by Green_Goblin, Feb 15, 2019.

  1. Green_Goblin

    Green_Goblin Well-Known Member

    Swapping a 350 for the 455 in my 71 Skylark. I have followed the suggestions on buickperformance, but I have a question not covered there. With the larger fan shroud I can put in a larger fan blade. Should I replace the 18 inch fan blade for a 20 inch? I want to keep the stock appearance, so electric fans are out of the question. I did purchase a 4 row aluminum radiator, so the 18 inch may be sufficient. The BOP Swap meet show is Sunday here in Chicago, so looking for opinions.


  2. copperheadgs1

    copperheadgs1 copperheadgs1

    Just get the correct shroud for a 455. 350 shroud will cover too much fan.

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