I am currently installing a 97 vortec 5.7 from a c1500 surburban, im having difficulties figuring out which inexpensive headers would be okay for this swap with no clearance issues.
G Body Swap Headers For 97' Vortec 350 5.7
- Thread starter 87vortecregal
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The cheaper the headers the more problems with fitment you will have. The more expensive the headers the less problems you will have with their fit, you get what you pay for. These may be your best bet. http://www.jegs.com/i/Hedman/500/66601/10002/-1
any SBC header for a gbody will fit the vortec heads ( if that's your concern ). Are you looking for recommendations ? Do you want cat-back, shorty, or full length headers ? What is your HP goal for the motor and your budget ?
If you are switching from a cat-back system to full dual exhaust you will need more than headers. If your cat-back is fine then look for a set of used TES headers
If you are switching from a cat-back system to full dual exhaust you will need more than headers. If your cat-back is fine then look for a set of used TES headers
Clone TIE Pilot said:
i was just thinking about some hedman headers! A friend of mine had a pair on a tbi chevy 350 in a 87 monte carlo ls and never caused any issues.
axisg said:
i'm aiming between shorty and full-length. This build is pretty much close to stock for now. In the future, i will be installing a new rotating assembly, lt4 hotcam, ls6 springs, comp cams retainers, and computer tuning. I would be fine in the 370 ish or 400 hp range.
i just did this with a 98 suburban 350... UNLESS RUNNING FUEL INJECTION STAY AWAY FROM THE LT4 HOT CAM, it sucks on my carb setup... i went with eagle rotating assembly, that damn lt4 hot cam, flat top pistons, edelbrock etec 200 heads, vette springs, magnum push rods, 1.6 roller rockers, edelbrock performer rpm intake.... makes good power BUT that lt4 hot cam is a death blow... i used f-body headers, i think they were for a 3rd gen camaro, no fitment issues
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BPTTONE420012 said:
That is the first time I have heard of complaint about the LT4 hotcam, what is the matter with it? I know cams designed for EFI have a different specs than those designed for carbs.
Clone TIE Pilot said:
its just a performance robbing pos on a carb setup... i'm sure it would probably rip in an EFI setup, but its robbing too much power from my carb set up... dont get me wrong, i am not saying the lt4 hot cam is a bad cam, i'm just saying its wrong for MY set up... is my car still decent for a daily driver, sure it is, smoked an old porshe 944 the other day, thought the kid was gonna piss himself that my old chevy took him, but the lt4 cam leaves alot on the table...
BPTTONE420012 said:
I think the vortec 5.7 block did make a difference on power as far as camshafts go between carb and fuel injection. My friend is building a carbed vortec 5.7 for his customer in which he is going to bore .060 over, flat top pistons, top end kit (not sure what the specs are), hei distributor, headers, and a camshaft with .544 lift. We hope to see 425+ hp and 400+ ft-lb/tq
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