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Old 01-19-2008, 07:38 AM
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SBC sheet metal intake manifold

when guys are making these. the runners, where they butt up next to each other at the ports. how do they weld these ? i see them welded on the outside all the way around. but there is no way to get a tig torch in between runners that are right next to each other. how do they do it ?

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Old 01-19-2008, 11:24 AM
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I think I know what you're looking for, if I was fabricating a sheet intake, I'd shape the runner ends to fit inside the flange opening, and weld them at the flange from the bottom, does that make sense? Just make the flange opening large enough so that when the runner tube is fitted inside it's large enough to port match after welding.
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Old 01-19-2008, 11:33 AM
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yeah, i thought of that, and variations of it. but i have seen pics where they didn't do it like that. maybe they just weld that section from the inside. or they weld the runners together, then weld the pair to the flange.
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Old 01-20-2008, 08:08 AM
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anyone ?.....
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Old 01-20-2008, 05:45 PM
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have you seen this one
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Old 01-20-2008, 06:02 PM
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no, i haven't. is that a WILSON ? that is really close to what i want to build. any bigger pics ?
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Old 01-20-2008, 06:06 PM
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they had to weld the runners together. then weld them onto the flange on the outside.

looking closer, it looks like that is for BRODIX heads. the ports are not close enough to be vortec heads.
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Old 01-20-2008, 06:08 PM
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go to this website really cool 4.3L engines

www.raceprovenmotors.com
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Old 01-20-2008, 06:16 PM
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this one is spread out
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Old 01-20-2008, 06:18 PM
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oh-yeah, RPM. i forgot about those guys. check out the 1100 hp 4.3

i was going to buy a set of sheet metal valve covers from them. (i can't find them on their site). but they did not look the way i wanted, so i didn't get em.
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Old 01-20-2008, 06:22 PM
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On their website you click on service on top it directs you to their products
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Old 01-20-2008, 06:22 PM
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thats even closer to what i want. where are you getting those pics ?
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Old 01-20-2008, 06:24 PM
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www.raceprovenmotors.com
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Old 01-20-2008, 06:36 PM
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found em. what they have
http://www.raceprovenmotors.com/cart...products_id=64

the style i want.
http://store.summitracing.com/partde...5&autoview=sku
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Old 01-20-2008, 06:54 PM
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I can tell ya I'd start fab'n intakes and valve covers like that if aluminum was so frick'n expensive!
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