I called Sandersons today. I believe they said the flange was about 1/2", similar to a stock manifold. I've spoken with two people at Sandersons about the QP1200 and they both cautioned that the QP1200 will hit the engine cross member on many older Chevelles due to old engine mounts. This makes me think the clearance must be pretty close. The spark plug access is much better than the CC12, which they recommend over the QP1200. However, I've just replaced my engine mounts, and I like the plug access, so I took the plunge and ordered a set. They said I could return them, and they'd pay for shipping, if they didn't fit, so I figured it was fairly low risk. I'm going to see how hard it will be to connect them to the Flowmaster American Thunder exhaust. Hopefully it will be a single pipe with a simple bend (one per side). One thing I like is the QP1200 has a 2.5" collector; same size as the exhaust pipe size.
Stay tuned. Tom Tomlinson '71 Malibu 350 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Galen and Melissa Love Sent: Sunday, March 09, 2003 3:53 PM To: [EMAIL PROTECTED] Subject: Re: [Chevelle-List] Header Question Does anyone happen to know approximately how thick the flange is on the Sanderson cast headers? Is it significantly thicker than the typical header flange? (i.e. - is it thick enough to get a good amount of bolt stretch, like a factory cast exhaust manifold? Galen ----- Original Message ----- From: "Herbert Lumpp" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, March 08, 2003 9:24 AM Subject: Re: [Chevelle-List] Header Question > Just out of curiosity I went to the Sanderson site to see the headers they > offer. It was interesting to see they are trying to patent the "exclusive > flange" of theirs. If you haven't looked at it, basically they extended the > raised sealing bead out around the bolt holes which will keep the header > flange from warping when you tighten the bolts. > > Back when I was looking for headers and I concluded Headers by Ed were too > expensive I noticed that Ed's headers had a nice smooth sealing surface w/o > the so called raised sealing bead that other manufacturers use. Since I > ended up with Hooker Super Comps and a raised sealing bead, I welded a bead > around the holes for the header bolts and filed them level with the sealing > bead (I also used a dead soft copper header gasket). It's been a couple > years now and now leaks. I guess what I'm trying to say is if you weld a > bead around the bolt holes like I did you should have no leaks. > > cYa- > > Herb Lumpp > 1966 El Camino > ACES 3509, MCC 528 > http://users.adelphia.net/~hlump/ > > ----- Original Message ----- > From: "Matthew Post" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Friday, March 07, 2003 3:25 PM > Subject: Re: [Chevelle-List] Header Question > > > > Thanks for the advice Kent. Well, I'm going to try to salvage the headers > > I have this weekend. If that doesn't work, I'll be looking more into > these > > Sanderson's. > > > > Thanks, > > Matt > > > > At 07:02 PM 3/6/2003 -0600, you wrote: > > >Matt, > > > > > > The Sanderson is a very nice quality header. But, like I said, I had > to > > >dimple a tube on each side. Very disappointing ! However, I did talk > with > > >another guy that has a set on his '69 Chevelle w/427, and did not have > any > > >fitment problems. If you have not already done so, check out > > >www.sandersonheaders.com . Do not use their measurements that are listed > on > > >the website (are not accurate). I have a Moroso oil pan which has the > > >"kickouts" on bottom of each side of the pan. After talking with the > > >Sanderson people on the phone, they told me that their "full length" > header > > >would NOT fit with the oil pan I am using. Then I ran across an article > in > > >Chevy High Performance (I believe..) where the owner stated he was > running a > > >set of the Sanderson "full length" headers on his '69 Chevelle w/427. > > >Called information, got his number, and talked with the guy. He was very > > >helpful, even took time out to take some measurements for me. Needless > to > > >say, I purchased a set from Sanderson. They clear the oil pan with > plenty > > >of room to spare. The only problem being the oil filter is a tight fit > with > > >the oil pan "kickouts". Need to turn the filter sideways to > install/remove. > > >Could be messy. > > > Also, they (Sanderson) do not recommend the use of header gaskets to > seal > > >the header to the head. Instead they say to use only black silicone or > > >black rtv (cannot remember which ?). You can read about it on the web > site. > > >I applied the product that they recommended, but have not run the engine > yet > > >to see how it works. But check out the website, because they also have a > > >"shorty" set of headers that would allow even more ground clearance. > They > > >also offer a different header flange for those who have a GEN VI engine, > > >which allows for the extra room required to clear the head bolts w/thick > > >washers. > > > > > >Good Luck, > > > > > >Kent > > >'68 Malibu ZZ502/502 :) > > >ACES #5102 > > > > > >----- Original Message ----- > > >From: "Matthew Post" <[EMAIL PROTECTED]> > > >To: <[EMAIL PROTECTED]> > > >Sent: Thursday, March 06, 2003 12:18 PM > > >Subject: Re: [Chevelle-List] Header Question > > > > > > > > > > thanks Kent! the set that I have currently (unknown brand) have > developed > > > > a leak. replaced the gaskets at the head but they're still leaking on > the > > > > driver's side. I think they may have rusted out or cracked. (they're > very > > > > old.) one way to find out is to probably pull the driver's side off > and > > > > check it out. but I've been thinking about replacing them. > Sanderson's > > > > are expensive, but if the quality and fit are good, they might be > worth > > >it. > > > > > > > > Matt > > > > '69 Malibu 396/th400 > > > > soon to be 4 or 5 speed! > > > > > > > > At 07:55 PM 3/5/2003 -0600, you wrote: > > > > >Have a set of the Sanderson "full length" 1 7/8" on my BB 502. Had > to > > > > >dimple a tube on each side for clearance, :( but the quality is > very > > >nice, > > > > >and the ground clearance is good too. > > > > > > > > > >Kent > > > > >'68 Malibu ZZ502/502 > > > > >ACES #5102 > > > > > > > > > >----- Original Message ----- > > > > >From: "Clint Hooper" <[EMAIL PROTECTED]> > > > > >To: <[EMAIL PROTECTED]> > > > > >Sent: Tuesday, March 04, 2003 9:05 PM > > > > >Subject: Re: [Chevelle-List] Header Question > > > > > > > > > > > > > > > > I had some 1 7/8" Sanderson intermediates on my former 68 Elky BB > car. > > >Not > > > > > > cheap but great quality. Super ground clearance,too. > > > > > > Clint Hooper > > > > > > LT5 Registry Director > > > > > > '91 ZR-1 Callaway Aerobody > > > > > > http://www.LT5Registry.net/ > > > > > > '69 El Camino ProTourer ACES #1650 > > > > > > http://dalesplace.com/misc/friends/clint_hooper.htm > > > > > > '99 Honda F6 Valkyrie custom for sale > > > > > > ----- Original Message ----- > > > > > > From: William King <[EMAIL PROTECTED]> > > > > > > > > > > > > > One word when it comes to headers..Dont. Look into Sanderson > > >Exhaust > > > > > > > manifolds. Hi flow, bolt on, never tighten. > > > > > > > > > ----------------------------------------------------- > To Unsubscribe please visit www.chevelles.net/list.html > To start a new topic, send mail to: [EMAIL PROTECTED] ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED] ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
