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Vortech 4.3 01-19-2008 07:38 AM

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 ?

68NovaSS 01-19-2008 11:24 AM

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.

Vortech 4.3 01-19-2008 11:33 AM

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.

Vortech 4.3 01-20-2008 08:08 AM

anyone ?.....

DOINSND 01-20-2008 05:45 PM

have you seen this one

Vortech 4.3 01-20-2008 06:02 PM

no, i haven't. is that a WILSON ? that is really close to what i want to build. any bigger pics ?

Vortech 4.3 01-20-2008 06:06 PM

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.

DOINSND 01-20-2008 06:08 PM

go to this website really cool 4.3L engines

DOINSND 01-20-2008 06:16 PM

this one is spread out

Vortech 4.3 01-20-2008 06:18 PM

oh-yeah, RPM. i forgot about those guys. check out the 1100 hp 4.3 :sweat:

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.

DOINSND 01-20-2008 06:22 PM

On their website you click on service on top it directs you to their products

Vortech 4.3 01-20-2008 06:22 PM

thats even closer to what i want. where are you getting those pics ?

DOINSND 01-20-2008 06:24 PM

Vortech 4.3 01-20-2008 06:36 PM

found em. what they have

the style i want.

lt1_performance 01-20-2008 06:54 PM

I can tell ya I'd start fab'n intakes and valve covers like that if aluminum was so frick'n expensive! :mad:

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