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Joined: Jan 2006
Posts: 418
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Jan 2006
Posts: 418 |
Does anyone know if a fan shroud for a 1964 Chevy Impala, Biscayne or Belair, is the same diameter for a small block as well as a 409 engine? Looking to buy a used one, but don't know if there is a difference. Hoping to rely on someone here that has more experience and knowledge than me. Thanks much for any info. Bobalouie
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Willwood Engineering
Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188
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Joined: Nov 2003
Posts: 2,576 Likes: 2
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Nov 2003
Posts: 2,576 Likes: 2 |
the sbc shroud's width is greater than that of the 348/409 shroud. as i recall, the 348 is about 2" in width and the sbc shroud is greater than 4",mike
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Joined: Jan 2006
Posts: 418
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Jan 2006
Posts: 418 |
Mike, thanks for the info; I am still interested in the diameter of the shroud, though.
I'm assuming that the 348/409 is larger in diameter than a small block? I had seen pics showing the difference in the length of the shroud "tunnel", and do appreciate your post.
Bob
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Joined: Nov 2003
Posts: 2,576 Likes: 2
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Nov 2003
Posts: 2,576 Likes: 2 |
since dealers have been known to take a sbc shroud and reduce its width and peddle the modified sbc shroud as a 348/409 shroud, i have to assume the diameters of both sbc and 348/409 shrouds are similar if not identical. i don't have a sbc shroud handy to measure, but i do have an original 348 on my 61 bubbletop. the car isn't handy just now but i can measure its diameter in a couple days if nobody posts the info. if so, remind me to get the measurements. regards, mike
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Joined: Jan 2006
Posts: 418
Backyard Mechanic
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Backyard Mechanic
Joined: Jan 2006
Posts: 418 |
Thanks Mike, I do appreciate it. Bob
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Joined: Jan 2002
Posts: 2,299 Likes: 8
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Jan 2002
Posts: 2,299 Likes: 8 |
They are the same diameter, both use a 18" fan blades. The small block should is about 6 3/4" long and the big block is 2-3" shorter.
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Joined: Jan 2006
Posts: 418
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Jan 2006
Posts: 418 |
Mike, thanks again. I picked up an entire setup over the weekend that included the fan shroud, so problem is solved!
Your info. was much appreciated! Bob
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