hi,

just al small question::

what is the size of our valvecover holes?
i put on a open element and a push-in breather but the breather was too big for the hole.
it was a breather for 1,22'' holes.
the grommet was out and stuck so now i can't drive pffff.

tom

 

Don't quote me on this, but I think the holes are 1" (don't have stock valve covers to check). I do know that the holes in the grommets for the breather and PCV valve are 3/4". If the old grommet in the valve cover for the breather is good, you could just find a 3/4" push-in breather to use. That's what I had to do.

 

Thanks,

i found out 1 minute ago that i must have a 3/4'' breather push-in.
now only a grommet to buy over here in this country pfff

Tom

 

The breather on the passenger side valve cover should be a tight 3/4" with the grommet in place.

 

I use the breather now.
I used a course piece to make the breather fit right.
The breather was for the 1 1/4''hole but is looks nice now
i can not post a picture because i have tbi-truck and not a 3rd-gen ,


Tom

 

If you show the engine you are fine. Since so many GM vehicles came with TBI engines we are bound to have people with TBI questions from other vehicles. These questions can be applied to the F-bodies as well so it really isn't straying off topic.

 

ok Thanks,

here you see my engine bay.
before ::


and after/now;;;

 

Thats a prett clean looking engine bay. Did your butt dyno feel any difference between the two intakes?

 

Thanks,

the sound is with the k&n 14'' much better.
i think that it's running al little better but within 2 weeks i'm going to log the truck again.
i must first make a fuel pump swap to a Walbro255 and a high stall converter.
Tom

 

wait isnt the breather for the LO3 on the passenger side???

And i was under the impression that we should get a covered breather not an open one?? Whats the deal!?!?

 

I think that a l03/l05 are the same(on the outside)
Maybe you see another hole on the passenger side but that's for the pcv-valve.
The pcv-valve is still there but because i went to an open element i use a breather for my crankcase vent.

The covered breather was because i live in Holland(Europe)and there is little choice between them ,besides it looks good.

Tom

 

Either will work fine.

 

So i need a 3/4 Inch breather for when i put my open element on, correct? I'd like to order everything i need tonight (because i need instant gratification for some reason ) so i just want to make sure i got it right:

Which of these Breathers will fit:
http://store.summitracing.com/defaul...G-2057&FROM=MG
http://store.summitracing.com/defaul...41-754&FROM=MG
or http://store.summitracing.com/defaul...L-4405&FROM=MG

And what size TBI spacer ring will i need for this open element:
http://store.summitracing.com/defaul...41-752&FROM=MG