99-00 Civic Si B16A, what is the radiator core thickness?

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11-27-2008, 09:03 PM

2BFI

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99-00 Civic Si B16A, what is the radiator core thickness?

I have a quick question regarding the USDM 99-00 Civic Si (B16A engine).

What is the core thickness of the OEM radiator? Is it 1" or 5/8"? I know the D-Series came with 5/8" thick radiator cores.

I live overseas and don't have access to a USDM vehicle.

TIA.

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11-27-2008, 10:07 PM

EFRue57

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this is 100% verified but from what i can tell just from pics it looks to be the same thickness as my 97 ex radiator. so i'm guessing 5/8''

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11-29-2008, 05:49 AM

2BFI

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In pictures end tanks look the same, but the cores might be different.

Anyone with an actual measurement?

Last edited by 2BFI; 11-29-2008 at 05:56 AM.

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11-29-2008, 07:48 AM

kaluwa3

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Stock 99-00 Si radiators have a 1'' core instead of the 5/8th''. About a year ago my radiator sprung a leak and I replaced it with a single cam radiator which is 5/8th''. It cools the b16 perfectly and I've never had any problems whatsoever, even in the 95 degree Florida summers.