351c 2v 4 bbl intake options

[351c1971]

Seems from my research the performer is a better selection for our use case, air gap seems to be more track orientated. Edelbrock has a million different buzz words makes it a bit confusing.

Appreciate the responses.

If you want good throttle response from idle, the Performer is the way to go.

 

[AcesArneson]

I am running a 2V Weiand X-cellerator intake with an Edelbrock 4150 throttle body and a 1" spacer between the throttle body and the air cleaner with aftermarket NACA air cleaner and active plenum and my seal is just right. I recall after ordering the intake that it was just a smidge higher than stock, sorry can't recall the exact deck heights front and back.
If you are just starting your build ensure you plan everything out in advance so that each upgrade will fit the final version of where you want to be. All of these intakes are reasonably close in performance but if you are looking for the best street performance I would start with the shortest dual plane intake, especially since you are thinking of rebuilding your 2V heads (which I would personally recommend you stay away from). The aftermarket 2V heads can be found with a closed chamber instead of the open chamber 2V heads our cars come with. A good porter can push 450 hp out of 2V heads but you always run into issues with detonation due to the open chamber and you end up spending so much replacing valves, lifter, etc... that you should consider a complete new 2V set of aluminum heads if you are looking for the most out of your 2V set-up.
I hit 440 hp @ 6000 rpm with this intake on the Dyno using Edelbrock 61629 2V heads without any port work on the heads or the intake manifold, so the potential is there for the 2V set-ups.

 

[rcadd1ct]

I would to the rom air gap as they have better runners and the plenum has the slot milled to help get the best of both open plenum and dual plane.

The slot also helps with throttle body injection fuel flow without fuel dropping out of suspension.

Also if you do any engine work in the future you will already have the better manifold

 

[Zach]

I am running a 2V Weiand X-cellerator intake with an Edelbrock 4150 throttle body and a 1" spacer between the throttle body and the air cleaner with aftermarket NACA air cleaner and active plenum and my seal is just right. I recall after ordering the intake that it was just a smidge higher than stock, sorry can't recall the exact deck heights front and back.
If you are just starting your build ensure you plan everything out in advance so that each upgrade will fit the final version of where you want to be. All of these intakes are reasonably close in performance but if you are looking for the best street performance I would start with the shortest dual plane intake, especially since you are thinking of rebuilding your 2V heads (which I would personally recommend you stay away from). The aftermarket 2V heads can be found with a closed chamber instead of the open chamber 2V heads our cars come with. A good porter can push 450 hp out of 2V heads but you always run into issues with detonation due to the open chamber and you end up spending so much replacing valves, lifter, etc... that you should consider a complete new 2V set of aluminum heads if you are looking for the most out of your 2V set-up.
I hit 440 hp @ 6000 rpm with this intake on the Dyno using Edelbrock 61629 2V heads without any port work on the heads or the intake manifold, so the potential is there for the 2V set-ups.

Not planning on rebuilding the 2v heads, just might get them cleaned up. Not planning on changing any valve train. Gonna keep the engine barebones stock, maybe a rebuild kit, then a year or so I’ll 408 it or something and get new heads. Appreciate the info though.

 

[Zach]

Sort of an off topic question but are D1AE-CB stock heads for a 71 or 72. Don’t have the block at my house yet so I can decode that. Just figured I should check, thanks.

 

[Tnfastbk]

Sort of an off topic question but are D1AE-CB stock heads for a 71 or 72. Don’t have the block at my house yet so I can decode that. Just figured I should check, thanks.

D1= 71 year model

 

[Tnfastbk]

https://classicmustang.com/decoding-part-numbers/

 

[Hemikiller]

My information shows D1AE-CB are 71-74 351C-2V heads.

 

[basstrix]

There's an edelbrock performer for 2v heads for sale in the cleveland's forever group on facebook. The guy is asking $100....I tried to post up the link, but I got a strange error message. If you pursue this, be sure you're confident it's not a scam.

 

[Zach]

There's an edelbrock performer for 2v heads for sale in the cleveland's forever group on facebook. The guy is asking $100....I tried to post up the link, but I got a strange error message. If you pursue this, be sure you're confident it's not a scam.

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Appreciate it, i think most of the stuff we will buy will be new. Mom wants a car and she’s opening the check book so I ain’t complaining. Thanks.

Thanks for all the info on the heads, grabbing the block this weekend to see what kinda engine they swapped the blown m code with.

 

[Mister 4x4]

So, what I'm seeing here, is that everyone has had to toss their factory "ram air" air filter assembly, regardless of model of aftermarket intake, because all of them are too high to close the hood over.

Nope - I have a Performer 351C-2V Dual Plane with factory Ram Air.

 

[TMAC23!]

My 1972 351 H Code is equipped with an Edelbrock Performer 351-2V dual plane intake, topped with a Holley 4160 600cfm carburetor. Engine itself is stock. It generates 202 DIN horsepower and close to 450 Nm torque. Not a high revving engine but enough torque to have fun. Ignition is stock but updated with a Pertronix Ignitor 1.
Cheers Frank

I have the same set up - just enough to out you back in the seat - love that 351c!

 

[AcesArneson]

So, what I'm seeing here, is that everyone has had to toss their factory "ram air" air filter assembly, regardless of model of aftermarket intake, because all of them are too high to close the hood over.

Actually I tossed my factory straight hood and replaced it with a NACA. I think the real trick is finding a good intake manifold/lower profile carb or throttle body combo. My setup uses a Weiand X-celerator intake with an Edelbrock throttle body. I am using the “inside the air cleaner” MAF from Pro-M. I had to work some magic with the PCV system but other than that it’s great.

 

[darb_123]

One option for four-barrel conversion while keeping 351C 2 barrel heads is to use an Aussie 4 barrel intake. It avoids the necessity to find extremely scarce and expensive 4300-D or 4350 carb because it uses the Holley or Quadrajet Spreadbore configuration instead of the 4300-D or 4350 carb layout.

I have an Ausie 4 barrel intake I have been saving for a future build. I bought it about 15 years ago and still have an H code Cleveland that I plan to use with it.

 

[351c1971]

I have the same set up - just enough to out you back in the seat - love that 351c!

I have the same setup. I added the quick change vacuum secondary spring kit to fine tune the secondary operation.

 

[Step7ber]

I have the same set up - just enough to out you back in the seat - love that 351c!