6066 (1960-1966) GMC Truck Club

6066 (1960-1966) GMC Truck Club (https://6066gmcclub.com/index.php)

- GMC V6 and V12 Engines (https://6066gmcclub.com/forumdisplay.php?f=9)

- - Valve Springs? (https://6066gmcclub.com/showthread.php?t=50219)

Quigley

November 24th, 2017 12:21 AM

Valve Springs?

Thunder V12 has valve springs listed for sale. I assume these are for V12 engines which I think are non magnum. Would anybody know if they are the same as used on a 401 Magnum motor? Thanks in advance Dave

BobBray

December 5th, 2017 03:38 AM

Re: Valve Springs?

You got me, but I think there is a valve spring for engines that do not have valve rotators and one for engines that do. About the only V-6's that didn't have rotators were some light duty 305's in pickups. Did the seller give a part number?

Quigley

December 6th, 2017 12:46 AM

Re: Valve Springs?

I don't know what the part number is on mine or theirs. l need to talk to them, but so far I have not been able to make contact.Maybe need to try a different avenue . Dave. :signthankspin:

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