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Ccass · 08-23-2007, 10:58 AM

Anthony, fyi, the flanges that you returned, fit the manifolds we had in stock. These were the same as the ones you received. The only thing I can think of is that one of the manifold stud threads were drilled or crossthreaded incorrectly. The RARE versions must have a little additional tolerance.

YVEYANT · 11:30 AM

Chris,
Thanks for the info, they fit because I had to machine them to fit (the aluminum versions), they did not come like that as I stated in my first passage. Go by the cast iron flanges, I did not machine those.
I tried BOTH sets of flanges you sent me on an original set of 67 R/A manifolds and neither one fit whereas the RARE flanges not only fit my original R/A manifolds, but also fit the R/A manifolds I got from you right out of the box with no alterations.. Also, if you look at the bolt holes on the RARE setup they are no larger in diameter than yours are not to mention they allow for better starter clearance and have a better seal for the downpipe. I hope this helps..
While I have you, any progress with the full 67 GTO quarters yet? I would be very interested in a set.

wh33lman · 08-23-2007, 03:48 PM

I'm going to jump in here, because I just cracked a new cast aluminum flange for my RamAirIII repros.
I noticed the flare was hitting the 2 studs before install and ground a little "U" out of the flare for each, but it still broke.

Cass, what is the part number for the Steel flanges for these manifolds?

I have the older 2 1/4" manifolds with the 2 1/2" Pypes downpipes.
The online catalog is a bit confusing over the part # RPE660H maybe? It is not actually listed.

GTO Noob · 08-23-2007, 04:10 PM

Chris,

I too will chime in on this one as one of mine broke as well when I was installing them. I went out and purchased a cast one. I'm not sure how true it is but it would seem that the majority of the issues that people are having involve the Ram Air manifolds.

I had a heck of a time fitting mine in due to the flange size with one of them even having to be ground down to clear the housing for the lower control arm. I also had problems with the alignment of the exhaust and the manifolds which I managed to tweak enough to make it work but it's not perfect.

Don't get me wrong I love the manifolds and the Pypes system and PY's support was great but there seems to be many others that are having issues with this combination which to me seems to point to an inherent problem.

JMO

YVEYANT · 08-23-2007, 05:24 PM

When I called PY and asked for Cast Iron flanges, I was told that they do not sell them any longer. The reason I did get cast iron flanges from PY was because the gentleman I spoke to said he would call me back and check around to see if they have any cast iron sets left. He called me back and said I was in luck they had one set left and those are the one's I got. So to recap, according to the person I spoke to, PY does not sell cast iron flanges any longer.

Ccass · 08-23-2007, 05:49 PM

anybody that needs to replace a cracked aluminum flange may get one by calling our offices. We have some cast iron flanges here. Not sure if we ordered some extra in because of this problem but if you ask for cast iron specifically, we'll send them.

You won't see the RPE660H part number in Pypes.... just in PY under the exhaust manifolds catagory. However, the iron and aluminum flanges share the same part number so you will have to specifically request iron if that's what you want.

GTO Noob · 08-23-2007, 06:02 PM

Thanks Chris,

Mines together with one cast and one aluminum so I don't see much of a point of taking it apart at this point. It's nice to know that PY will stand behind it's products.

YVEYANT · 08-23-2007, 07:28 PM

Chris,
What about the full quarters??

wh33lman · 08-24-2007, 02:13 PM

Quote:

Originally Posted by Ccass

anybody that needs to replace a cracked aluminum flange may get one by calling our offices. We have some cast iron flanges here. Not sure if we ordered some extra in because of this problem but if you ask for cast iron specifically, we'll send them.

You won't see the RPE660H part number in Pypes.... just in PY under the exhaust manifolds catagory. However, the iron and aluminum flanges share the same part number so you will have to specifically request iron if that's what you want.

Thanks Ccass, but since I am already off the road for another week waiting for the correct downpipe and another aluminum flange to get here from Pypes/PY, I ordered steel flanges from RARE.