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foamypirate · 11-30-2015, 03:16 PM

I've looked into this as well. What I've discovered through others, is that the GM installed valve on 87'-91' TBI Squarebodies is identical to the Pollak valve. One of the shop owners near me who specializes in LS swaps for 73-87 C10s has been running a factory replacement valve in his 87' with his 6.0L/4L80E swap for over a year with no problems. I believe he used an ACDelco branded replacement. If I recall, he stated it was stamped Pollak when he opened the box.

ACDelco U7000 is the part number for the 3 port valve. As we know from Glock's thread, the 3 port is really just a 6 port with caps on the return nipples. I'd buy that and yank em' off and run with it.

If you feel the need to, the "genuine" 6 port is ACDelco U7001.

11-30-2015, 03:16 PM	#2
foamypirate Registered User Join Date: Apr 2009 Location: Pflugerville, TX Posts: 594	Re: High pressure fuel tank selector valve I've looked into this as well. What I've discovered through others, is that the GM installed valve on 87'-91' TBI Squarebodies is identical to the Pollak valve. One of the shop owners near me who specializes in LS swaps for 73-87 C10s has been running a factory replacement valve in his 87' with his 6.0L/4L80E swap for over a year with no problems. I believe he used an ACDelco branded replacement. If I recall, he stated it was stamped Pollak when he opened the box. ACDelco U7000 is the part number for the 3 port valve. As we know from Glock's thread, the 3 port is really just a 6 port with caps on the return nipples. I'd buy that and yank em' off and run with it. If you feel the need to, the "genuine" 6 port is ACDelco U7001. Last edited by foamypirate; 11-30-2015 at 03:25 PM.