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Old 05-14-2016, 01:54 AM   #1
K20Chevrolet
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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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Old 05-14-2016, 02:37 AM   #2
69heavychevy
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Re: Which intake should i use? 383 stroker with vortec heads?

part# 2716 or 7516 for air gap intake.
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Old 05-14-2016, 02:51 AM   #3
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Re: Which intake should i use? 383 stroker with vortec heads?

Yeah what he said.
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Old 05-15-2016, 01:07 AM   #4
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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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Old 05-15-2016, 01:23 AM   #5
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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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Old 05-15-2016, 12:28 PM   #6
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Re: Which intake should i use? 383 stroker with vortec heads?

Quote:
Originally Posted by jetmech85 View Post
Get the headers to fit your '78 with a 350.
Even tho I have vortec heads on? Just get what I would normally get with the oldschool heads?
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Old 05-15-2016, 12:47 PM   #7
rich weyand
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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
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Old 05-16-2016, 01:11 PM   #8
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Re: Which intake should i use? 383 stroker with vortec heads?

Quote:
Originally Posted by K20Chevrolet View Post
Even tho I have vortec heads on? Just get what I would normally get with the oldschool heads?
Exhaust is the same from old and newer vortec style heads. Intake manifold and rocker arms are the only required changes.
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Old 05-18-2016, 03:12 PM   #9
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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.
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