MFI Stack size

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Mar 6, 2004 | 11:34 AM

GrantG

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From: Denver

MFI Stack size

I have a 2.7RS type motor with MFI. It has the black plastic intake stacks common in 73 with part number 911.110.316.1R molded into the second stack on each bank (on the right side of each left and right second stack). I was hoping that someone who knows whether their MFI comes from a 911T, E, S, RS could tell me if they match this part number. I'm trying to discover if it's the larger or smaller version. I was told that it was the smaller (found on T and E cars) but then bored out...

This part number is too old to be found with the PET.

Thanks,
Grant

Mar 7, 2004 | 04:57 PM

Brian 96C2

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From: Indiana

Grant,

That is a 'T' part number.

Mar 7, 2004 | 05:10 PM

GrantG

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Thanks Brian!

Mar 7, 2004 | 10:27 PM

pwd72s

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From: Linn County, Oregon

For what it's worth...the number on my car's right (as you look at the engine) stack reads: 911.110.312.1R. Original '72S with the VIN# 911 230 1556. My understanding is that the stacks of the 2.4 S and the 2.7 RS were identical in bore. Keep in mind that "my understanding" has been wrong before, so it could be now...

Mar 7, 2004 | 11:00 PM

GrantG

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From: Denver

Thanks!

Mar 7, 2004 | 11:05 PM

Brian 96C2

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From: Indiana

Grant and Paul,

Here is an interesting discussion on the Early S site about the confusion of numbers on MFI stacks.

MFI stack part number discussion