i was cleaning up some used intakes i have and was matching them up afterward when i noticed some had "A" and some had "B" stamped on the side while others had no markings at all

_________________
Just Stand On It!!!!

Chris

I suspect the A and B desinate the Offset from the left and right manifold. Easy way for the plant packers to get one of each in the box.

_________________
Water cooled Dry Sumped Subaru Powered Turbo Charged Fuel Injected 2500CC Tank. Oh Rah! He who dies with the most Toys not only wins, He also wears them out!

so will they not work on either side, they look the same laying side by side

which is right and which is left

_________________
Just Stand On It!!!!

Chris

I think there were two sets offered. One with an offset to compensate for the 1/3 - 2/4 cylinder banks not being in line and the other set with no offset.

_________________
Water cooled Dry Sumped Subaru Powered Turbo Charged Fuel Injected 2500CC Tank. Oh Rah! He who dies with the most Toys not only wins, He also wears them out!

so does this mean a = offset and b = straight or vice versa

or maybe its a = driver side and b = passenger side or vice versa

_________________
Just Stand On It!!!!

Chris

Do they look ported ? If so the heads they were on were also marked a/b to keep them in the correct location.

most definantly been ported and a souple of sets even been welded on but i dont have the heads

_________________
Just Stand On It!!!!

Chris