Anybody have a dual carb intake and/or dual exhaust for 1950 Buick straight 8 they want to sell? Or know where I might find same? Thanks, Rodney
You might PM switchbladeteeth. I think he acquired one of those awhile back & now he's selling his 51, so maybe he'd sell it?
What series do you have? If you have the smaller Special Engines, they're pretty hard to come by. As far as I know, there weren't any aftermarket companies that fabricated an intake set up for this engine. The factory did however make a stock dual intake/exhaust on the smaller engine Specials for years 1941 and 1942 ONLY. I just recently found this out. There was actually a thread I posted on it a couple weeks back with some pictures on it if you're interested. Like I said, pretty hard to come by. Be carful with that too, because the manifold bolt pattern back then was the 3 hole standard and your carb throttle body now is going to have the newer rochester 4 bolt pattern. Not a big deal, really. They sell adapters for them. Or you can just get a couple 97s or 94s Dual intakes for the larger motors, Roadmasters, etc are much easier to find. I was told that Offy made a set up, but I've only seen an Edmunds version. Also, it was a factory option to come with dual intake/exhaust. I haven't seen too many factory set ups like that, but you might get lucky in a yard. Expect to pay a mint, though. I know that vintagespeed.com sells the Edmunds intake for the larger motors. I think it's a couple hundred bones. I saw the Special set up on ebay sell once for 250 a couple months back, and just recently for 450. I saw one website that dealt with Buick parts that had a set up that they were selling for 750. I can't remember the website, but the name of the company was Cars USA. If you've got the savy, I'd just make one. The factory setups just don't look like they do much. For now, take a look at the intake on this Buick Drag Car. If the picture doesn't load, just imagine a straight 8 with an 8 carb intake set up. If the picture does load, just take a look and you'll see what I'm talking about.
Thanks a bunch, Cool, for a lot of good info. I've about decided that I will have to make my own but thought I'd give the board a shot anyway. Mine is the smaller Special. My son wants me to go with the ones like in the pic you posted and let the pipes come on thru the hood. Maybe someday! Know any good sites with info and tips on fabricating your own? Thanks again, Rodney
I don't know of any sites off hand that talk about custom manifold fabrication. It's such an easy set up though, that I can't imagine it being too hard. Check out this guy's site: http://www.nic.fi/~marlin/Rmaster.htm This guy's sharp as a tack. He's done his homework. He's got an amazing section on bolting up a Muncie ****** to the stock rearend. Pretty crazy.
Thats a cool pic! I read somewhere that Don Montgomerys buick S8 that he ran in a hudson later went in a 37 Cord, could that be the one in the pic?
[ QUOTE ] What series do you have? If you have the smaller Special Engines, they're pretty hard to come by. As far as I know, there weren't any aftermarket companies that fabricated an intake set up for this engine. The factory did however make a stock dual intake/exhaust on the smaller engine Specials for years 1941 and 1942 ONLY. I just recently found this out. There was actually a thread I posted on it a couple weeks back with some pictures on it if you're interested. Like I said, pretty hard to come by. Be carful with that too, because the manifold bolt pattern back then was the 3 hole standard and your carb throttle body now is going to have the newer rochester 4 bolt pattern. Not a big deal, really. They sell adapters for them. Or you can just get a couple 97s or 94s Dual intakes for the larger motors, Roadmasters, etc are much easier to find. I was told that Offy made a set up, but I've only seen an Edmunds version. Also, it was a factory option to come with dual intake/exhaust. I haven't seen too many factory set ups like that, but you might get lucky in a yard. Expect to pay a mint, though. I know that vintagespeed.com sells the Edmunds intake for the larger motors. I think it's a couple hundred bones. I saw the Special set up on ebay sell once for 250 a couple months back, and just recently for 450. I saw one website that dealt with Buick parts that had a set up that they were selling for 750. I can't remember the website, but the name of the company was Cars USA. If you've got the savy, I'd just make one. The factory setups just don't look like they do much. For now, take a look at the intake on this Buick Drag Car. If the picture doesn't load, just imagine a straight 8 with an 8 carb intake set up. If the picture does load, just take a look and you'll see what I'm talking about. [ QUOTE ] the '41 had "compound carbs" 2x1. there are a few dual carb intakes for the 248/263 motors (but they're $$$). the 320 set-up will not fit the smaller series.
Okay here's the deal: The smaller Buick Straight 8s (248/263) of the late '40s/early 50s don't have any aftermarket speed parts. I don't think they ever really did. They weren't "hot" engines then, and if someone wanted to go fast with a Buick I-8, the huge 320ci Roadmaster engine was a hotter ticket- especially since it'd gone virtually unchanged since its introduction in the mid '30s. The 320s were proven, plentiful, and cheap. The 248/263 "small-block" straight 8s were good engines, but not often considered for racing/rodding. The introduction of many lighter, larger displacement OHV V-8s and the pesky Ford Flathead (with its vibrant selection of hot rod goodies back then) made the 248/263 a non-issue. So, here's what ya gotta do... The 248/263 features siamesed intake ports, so you have only four intake ports on the side of the engine. They are equally-spaced and easily accessed. Use a stock gasket to create a flange plate out of steel or aluminum sheet, I'd recommend 3/8-inch thickness minimum. Once you've duplicated the intake manifold surface in 3/8, you can lay out and build whatever kind of induction you'd like. I also have a '50 Buick with the 263 (big shock!) and I've chosen to arm mine with a pair of side drafts from Harleys. They are about 250 cfm each and should be about perfect for the application. I'm covering them with teardrop-shaped S&S air filters to nail a "period" look. Any header will have to be fabricated in a similar manner. First, duplicate the gasket on a steel sheet (I'm going with a 1/2-inch thick steel flange on the exhaust side) and route your pipes carefully. I'm considering routing the front four to the right side of the car just aft of the oil pan (between the engine/trans) and the rear four to go along the right side framerail. I'm not going to go nuts over keeping the pipes equal-length, but I'll try. I want to run a fairly long primary pipe to encourage bottom-end torque, since these engines don't spin to high rpm and I'm adding an overdrive transmission. It'll have to be comfy making good torque at low rpm, and a long primary pipe header will encourage this. I'd have to recommend against insane carburetion, unless you plan to make some of the carbs dummies. I think 4 small carbs, placed with one over each intake port, could be effective and tuned well. I don't think the engine needs 8 carbs, since the compression is a weal-**** 6.9:1 or at the most 7.2:1 in stock shape. It won't want to be beat on, and if you kill it you'll be looking at a sizeable investment of time, effort, and cash to rebuild it. I've been planning mine for a couple years and it's not together yet, but I've got a good outline of what it'll all be and some components are already in my posession. So, there ya go. The 248/263 is a decent design and it can be made smooth, reliable, powerful, and cool..but it's not a "race" engine and shouldn't be treated as such. If you push it too hard, it will resist. You can't just get stuff at AutoZone so ease into this buildup and do it carefully. Once accomplished, you'll have a cool motor unlike anyone elses...unless you live near me. It'll sound different, look different, and run different...which is why I love em'... There are adapters to put a 700R4 behind them now. Bendtsen's makes them. Scotch~!
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