Steve40th

I am wondering why GM cut the bolt hole like this on the intake bolt slot on the top of this picture? My 94(maybe actually a 95-97?) manifold has the same thing, and I have no intake leaks etc. I do use thread sealant on all intake bolts. But just curious as to why GM cut the hole like this, if they did?

wht-z

not quite sure why that is there my 95 doesn't have it

Steve40th

Interesting. Found one sold on another forum, but no year?

fordeater

iTrader: (5)

my 95 isnt like that, thats really odd tho, never have seen that.

97LT1

iTrader: (3)

have it on one of my intakes.

Rocky70304

iTrader: (4)

My factory 96 intake was like that, then I bought a ported and polished one off of ebay and it had that also.. have no clue what the point of doing that was.

Steve40th

Maybe there was a wiring harness or hose or something that floated down there and the manifold needed to be notched to handle bracketry?
Who knows, as long as it is factory.

355z28

iTrader: (8)

both my 96 intakes are like that. I dunno, i cant remember what went on that bolt before the build.

Taubr Unit

iTrader: (32)

my 94 isnt like that

GreenBlood

iTrader: (6)

weird, i'd check right now if it wasn't freezing ***** outside...

4.6gt-2-ls1ta

iTrader: (3)

my 96 is also like that, but doesn't have anything that I see would facilitate it.

borninatransam

iTrader: (4)

my 95 isnt like that either.

Bad_tx_Z28

iTrader: (3)

i just checked my 94 Z..didnt see anything like that

96capricemgr

iTrader: (1)

My bet would be something to facilitate easy assembly line handling of some sort.

TXFORMULA

as long as it does what its supposed to do...right ?

Schweet97Z

iTrader: (35)

my 97 is like that....im guessing traction control, Y? i have no clue lol

Jpack

iTrader: (12)

The reason it is there is for easy assembly. It is used as a guide. Insert bolt and start, slide intake into place. This helps in assembly and stops some of the movement so the front and rear seal better with less movement. I actually use 2 short studs when putting on my intake to just drop it in place. I have a 94 and unslotted intake.

Taubr Unit

iTrader: (32)

good idea on using 2 studs so it slids right down instead of back and forth messing up the RTV!! Good call man. Wish i thought of that when i pulled my intake off 10 times... DOH!

Transamman25

iTrader: (1)

i used the same trick on my intake jobs - learned it from a tech while working at GM