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Is This Intake Dual Plane?

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Old Mar 4, 2006 | 09:29 PM
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Default Is This Intake Dual Plane?

Is this intake dual plane? Its the factory aluminum 70 LT-1 intake GM#3972110. I looks like it is from the pics but im not sure and I dont know if I really know what to look for anyway.

Thanks for any help!

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Old Mar 4, 2006 | 09:31 PM
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Yes.
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Old Mar 4, 2006 | 09:32 PM
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Thanks! Sorry for the newb question.
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Old Mar 4, 2006 | 09:36 PM
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Single plane would have one large plenum that the carb mounted on & the runners would look like a big X, when viewed from above. You could look down all 8 intake runners.
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Old Mar 4, 2006 | 09:40 PM
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Excellent manifold for anything but very serious race use.
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Old Mar 4, 2006 | 10:44 PM
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I have that manifold. It's an LT-1/Z28 manifold. Mine is modified to take a Quadrajet, and port matched to the Felpro 1506, just like my Airflow Research 195s. Works great. I take my engine to 6500 rpm all the time. I would like to try the Performer RPM, but the don't make it for my Quadrajet.
Bee Jay
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Old Mar 4, 2006 | 11:19 PM
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Single plane...
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Old Mar 5, 2006 | 12:46 PM
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Terrific manifold. Basically the same manifold used on all the factory Z28 Camaros and as good as it gets.
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Old Mar 5, 2006 | 02:05 PM
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Well I had hoped to pick the pictured intake up on ebay but the price is already up to $300.00 with a lot of time to go. More than I was looking to spend on an intake at this time. Guess I will keep looking.

Thanks guys for all the help! Now I know what to look for.
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Old Mar 5, 2006 | 02:10 PM
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Yeah, these usually go for around $350, from what I've seen. You might consider an Edelbrock Performer for far less.
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Old Mar 5, 2006 | 02:58 PM
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Originally Posted by LittleJake
Thanks! Sorry for the newb question.
Hey, we like those easy questions! Larry
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Old Mar 5, 2006 | 04:25 PM
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Originally Posted by rcread
You might consider an Edelbrock Performer for far less.
LittleJake

If the green conv. in your pic. is your car the 2101 Performer will fit much better or maybe the Edelbrock EPS. You need about 3/4" clearance over the Holley vent tubes.
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Old Mar 5, 2006 | 04:55 PM
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Originally Posted by Ganey
LittleJake

If the green conv. in your pic. is your car the 2101 Performer will fit much better or maybe the Edelbrock EPS. You need about 3/4" clearance over the Holley vent tubes.
Yep, that's what I have in my '71 Roadster. It's a good, solid performing intake and an easy swap.
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Old Mar 5, 2006 | 06:16 PM
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Yes, thats my car and I will check those two options out.

Thanks again!
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Old Mar 6, 2006 | 08:33 AM
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Default are you sure??

Originally Posted by LittleJake
Is this intake dual plane? Its the factory aluminum 70 LT-1 intake GM#3972110. I looks like it is from the pics but im not sure and I dont know if I really know what to look for anyway.

Thanks for any help!


That intake has an oil filler tube hole, with they stopped after 68. either its not a 70, or someone openeed up the hole. If you dont want it ill take it for my 68

little detail


tim
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Old Mar 6, 2006 | 09:03 AM
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Originally Posted by LittleJake
the price is already up to $300.00 with a lot of time to go
These manifolds are hard to come by at a reasonable price, they are good manifolds and are used for LT-1 restorations. If you're set on buying one try Camaro forums also.
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