351W RPM Performer Intake in Gen3 Coupe

[T6Ted]

Hello,

I know that FF states and I have seen other posts on the topic of the performer intake fitting and the RPM intake does not but curious if anyone found a solution for getting the RPM under the hood on a coupe?

Thanks
Ted

[P100DHG]

Hello,

I know that FF states and I have seen other posts on the topic of the performer intake fitting and the RPM intake does not but curious if anyone found a solution for getting the RPM under the hood on a coupe?

Thanks
Ted

It's a good question. I have two points:

1. Check out this thread - https://thefactoryfiveforum.com/showthread.php?30642-Will-it-fit-351-Performer-RPM-Intake
2. I got the Performer intake because I was concerned about the RPM Performer not fitting. Roush provides on 2.5" tall air filter and with the top and bottom of the filter housing it measures 3". I don't think it would have fit I bought a 2" tall air filter and I think it will just fit.... Maybe we will see. Tomorrow my brother is going to help me put the hood in my truck and i'll take it home from storage and test fit it. With the Performer intake it sits so low that the oval air cleaner from Roush almost sits on the distributor. So a drop base oval air cleaner is not possible with a Performer, I know for SURE. I will take some measurements and pictures for you tonight and add them here of the Performer. My goal is 0 body modifications to the hood. I want that stock look. Also I received today a very reasonable quote form K&N to custom make me a 1.5" tall air filter which I will post about later today for only $90. I should know tomorrow if I am going to need that and put my order in. I will keep you posted.

So in answer to your questions about the RPM Performer intake which is 3/4" taller than the Performer. I should have an answer for you tomorrow hopefully. You might be able to get away with it with a very low profile cleaner but I have to say I am not optimistic.

[GoDadGo]

Edelbrock 351 Windsor Intake Carb Flange Heights:

1. The Performer RPM Air Gap has a carb flange height of 5.75"
2. The Victor Jr. Single Plane also has a flange height of 5.75".
3. Your Standard Performer RPM has a carb flange height of 4.80".
4. The Standard Performer flange height of 4.12".
5. Another Single Plane option is the Torker II which has a carb flange height of 4.15".

The Weiand Stealth Might Be An Option Too:

High Rise Dual Plane Design
Port Size: 1.82” height 1.05" width
Height: Front 4.37", Rear 5.06"
Power band: 1500-6800 RPM

https://www.holley.com/products/intakes/dual_plane_manifolds/parts/8023WND

[T6Ted]

Thanks guys for the info! And looking forward to seeing how much room there is when you do some measuring.

[David Williamson]

Here is a picture of my engine with a Performer RPM intake, this is with a 302 dimension 363 Dart block and there is roughly 3/4 - 1 inch clearance to the hood with a small oval air cleaner turned sideways. Gives an idea what will fit without hood modifications. That is why i picked the smaller block.
129401
David W

[P100DHG]

That’s actually really helpful David because I suspect my larger 2.5” tall air cleaner might work with a performer intake. We’ll see today my clearances and I can work the math backward and we can get a definitive guide as to what will it fit.

[P100DHG]

I did my best to answer your questions here

https://thefactoryfiveforum.com/showthread.php?30642-Will-it-fit-351-Performer-RPM-Intake&p=414278&viewfull=1#post414278

[T6Ted]

Thanks! I saw your post. This is some great info you provided!

[GoDadGo]

If you are running a larger stroker motor (383 thru 427) with nice heads and a decent cam, then consider the Torker II.
Dual Plane intakes are great for drive-ability, but tend to nose over on the top end especially for larger displacement mills.
While it is true the Single Plane hurts the bottom end, I've found that killing some of the bottom end torque has been helpful.
Drive-ability will only be impaired when the engine cold and/or warming up but a carb with annular boosters will help negate this.

Good Luck From The Dark Dart Side!