1949 Olds Rad Cap Pressure

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Jun 20, 2022 | 08:10 AM

57J2Olds

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Posts: 130

1949 Olds Rad Cap Pressure

Hello,

I finally got my aluminum radiator back.

Can you please tell me what pressure cap I need to buy for my 49 motor?

Thanks,
Lee

Jun 20, 2022 | 09:50 AM

oldcutlass

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Joined: Oct 2009

Posts: 42,520

From: Poteau, Ok

I'd stick to around 12-13#'s.

Jun 21, 2022 | 07:15 AM

57J2Olds

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Joined: Aug 2014

Posts: 130

Thanks

Found a service manual.

Looks like 7psi for the v8 and 4psi for the 6.

Jun 21, 2022 | 09:01 AM

oldcutlass

Administrator

Joined: Oct 2009

Posts: 42,520

From: Poteau, Ok

I suggested the higher rating because of your aftermarket radiator.

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