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05-14-2016, 01:54 AM
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#1 |
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Registered User
Join Date: Apr 2015
Location: Berthoud, Colorado
Posts: 16
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Which intake should i use? 383 stroker with vortec heads?
So idk why i didn't think of this before but i just recently rebuilt my sbc 350 into a 383. The motor came out of my 78 k20. I put vortec heads on it just thinking my old edelbrock intake would bolt right up! But i was wrong ha. So my question is what intake will work with my current set up and still be carburated. Any thing will help! Thanks. Would also prefer the intake be edelbrock.
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05-14-2016, 02:37 AM
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#2 |
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Registered User
Join Date: Jan 2007
Location: Garland,TX
Posts: 431
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Re: Which intake should i use? 383 stroker with vortec heads?
part# 2716 or 7516 for air gap intake.
__________________
80 C10 SWB Step Side - 350 w/ vortec heads, TH350, 12-bolt 3.73 |
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05-14-2016, 02:51 AM
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#3 |
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At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,257
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Re: Which intake should i use? 383 stroker with vortec heads?
Yeah what he said.
__________________
" That didnt make it any newer " " Dont antique the equipment " |
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05-15-2016, 01:07 AM
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#4 |
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Registered User
Join Date: Apr 2015
Location: Berthoud, Colorado
Posts: 16
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Re: Which intake should i use? 383 stroker with vortec heads?
Ok cool. Also do the exhaust ports change? I only ask cuz i need to get a set of headers so do i still get ones for my block or do i get a set for a 1996?
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05-15-2016, 01:23 AM
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#5 |
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Registered User
Join Date: Sep 2014
Location: Texas
Posts: 215
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Re: Which intake should i use? 383 stroker with vortec heads?
Get the headers to fit your '78 with a 350.
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05-15-2016, 12:28 PM
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#6 | |
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Registered User
Join Date: Apr 2015
Location: Berthoud, Colorado
Posts: 16
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Re: Which intake should i use? 383 stroker with vortec heads?
Quote:
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05-15-2016, 12:47 PM
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#7 |
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Registered User
Join Date: Apr 2014
Location: Bloomington Indiana
Posts: 1,041
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Re: Which intake should i use? 383 stroker with vortec heads?
If you get the air-gap manifold, you need to run the thermac air cleaner setup, or have some other arrangement for carb heat, or the carb will never warm up in the winter and you will get miserable gas mileage and performance. See here:
http://forum.73-87chevytrucks.com/sm...?topic=27239.0
__________________
Rich Weyand 1978 K10 RCSB DD. |
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05-16-2016, 01:11 PM
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#8 | |
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driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,748
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Re: Which intake should i use? 383 stroker with vortec heads?
Quote:
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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05-18-2016, 03:12 PM
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#9 |
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Senior Member
 
Join Date: Jul 2000
Location: North Texas
Posts: 3,597
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Re: Which intake should i use? 383 stroker with vortec heads?
Before bolting on your stock exhaust manifolds or headers, use a gasket as a template to make sure the top of the manifold or header port is as tall or taller than the port on the head. If not, do some grinding, because that's the last place you want to hinder exhaust flow, because velocity is much higher up there where the gasses are making a sharp turn.
Also, some header tubes may be very close the spark plugs on Vortec heads, since the plugs sit closer to the exhaust ports. Pre-vortec OEM gasket on Vortec head. Your exhaust manifolds may also cover up the top of the port.  Fel-Pro gasket for 96-up Vortec engine. 
__________________
Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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