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After seeing the retarded price dual snorkel air cleaners are going for, I am building my own. The $160 the guy on ROP is asking for a 85 442 air cleaner is fair but someone who has a 442 missing one should buy it. I was going to buy a bolt on Ford scoop but still $100 shipped. My 260's air cleaner I am using the open top and will have a scoop feeding it. For some reason it hit the the non A/C alt bracket. It is the nice big wide snorkel so it will boost air flow a lot. I carefully removed it with a chisel, should be able to drill and install with 4 very small bolts and nuts. The only problem is the other snorkel is smaller. Makes sense, obviously a dual jet on a mighty, tiny port 260 needs more air than a big port early 307 with a Quadrajet, way think that one out GM engineers. I also plan on painting dryer venting flat black to feed from the fenders and use the big Rocket 350 silver pie plate decal. I also have the Accel cleanable foam air filter for it, another reason to use it. I will post pics tomorrow of the finished product minus the decal.
I made one years ago. Fun project. I didn't try to copy a correct one or get too fancy.
I don't seem to have a picture of it...
Anyways, I believe I used a two barrel snorkel and just cut it down to accept some kind of hose I had at the time.
Fresh paint and a couple of new decals. Looks good. Still using it, just no hose on it now.
I still have the paper templates i think. In these pics they still needed to be trimmed down to 3 in. If i where to give you helpful advice is. Make a sheet metal band for the insert and buy oval exhaust tubing for the ducts. I made my own ducts but the oval tubing is cheap and faster and cleaner. I bought some scrap oval tubing from a local shop for 20 bucks. I may revive my project because i still have the snorkle tubes and velocity stacks for the high beams collecting dust .
Last edited by coppercutlass; February 25th, 2017 at 06:50 PM.
Just curious, where did you get the ducting hose? My plan is function and not look too bad. I am going to mount it on the 350 make sure it clears the alt bracket and filler tube but still look balanced.
I used aluminum dry vent hose.I used the stove pipe flanged tube thru the head lights. To a ram air box.Three inch tubes. I still have the car where i can use this system but at the present i am not.I used the high beam area for the vents. Cut off the end of the high beam bracket so i could attach the stove pipe flange with sheet metal screws.I then used hi/low beam bulb in the low beam area. When i attached the vent hose to the flanged stove tube i drilled a hole thru the pipe used a nail to connect the dryer tube to it. I then wrapped with aluminum tape to seal it. I did the other end at air cleaner the same way. The nail i ideal was for quick removal. I called my system Robbie the robot because of the aluminum ducts.LOL
Thanks, I will probably use dryer vent tubing and elbow into the fender. I got the snorkel on, looks good, cut the hole perfect. I noticed there is a deflector I need to cut out as well behind the original snorkel. I am surprised my 307 performed as well as it did this set up, good grief. Pics in a couple of hours.
Here is a picture where you can see the aluminum ducts. A friend sent this picture to me i took first place in sports man at this event.I think this was in 2005.
This is made from two Oldsmobile air cleaners and a Holley base. This is my 1967 Turquoise 98.
I like it, looks factory. I don't know what Olds was thinking on this 81 307 or maybe this one is original off my 88 CSC, now that I think about it, pretty sure it was. It was near indentical to air cleaner off my 81 307, air in was obviously not the first priority.
February 25th, 2017, 04:13 PM
