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Knock Off Intake Manifolds

R

Randy Wilson

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Does anyone have any personal experience with using one of the Edelbrock performevRPM intake manifold knock offs that you’re seeing on eBay and other places. I believe the reference numbers are 7186 and 7193.

IMG_4145.jpeg
 
Engine masters did one with a sbc. The rpm was best, but the rest weren't far off
 
Yeah actually I do. I thought well for the price I'll try it and if doesn't fit I can send it back. I would buy another tomorrow if I needed one. It fit perfect and does all I need it to do on a street car. I bought it from Amazon
Hope that helps
 
I remember posts a year or maybe more back where people were checking them against good quality gaskets and finding issue with misaligned and twisted ports and bolt holes too. However, this was also happening with Edelbrock intakes as well.
 
Randy Wilson said:
concerned with fit and quality
Click to expand...
I did get a rip off Air Gap and the machining was off causing vacuum leaks at the ports.Straight edge and a file took care of that.

Lefty71 said:
bolt holes
Click to expand...
Did have one bolt hole that was off enough I couldn't get the bolt started.Again a file took care of that.
The bad was R&R of the manifold and another set of gaskets. Live and learn..
 
If it was knock-off of a manifold that was no longer sold then I'd consider one, but otherwise I'd rather support the genuine company that designed and made them, even though they are probably still made in China.
I'd rather spend a couple of hundred bucks more for the real thing, maybe that's just me.
 
Randy Wilson said:
I already saw one on eBay that looked like an action plus
Click to expand...

Correction: The ones on Ebay and Amazon and 440 Source are selling Edelbrock RPM knock offs.

Ebay/Amazon RPM knock offs/440 Source also sells these in RB and Low-Deck/B sizes

1758430379164.png

Edelbrock RPM
1758430403992.png

Co
 
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The black painted one does look like an Edelbrock Performer RPM....

1758431370990.png
 
I am using one on my 340. Fit and finish was excellent. Had a minor pin hole leak but I smeared a small amount of epoxy and sealed it. Used an automotive smoke generator to detect it.

Zoom in you can see a vertical smoke stream.

I would certainly buy another but would test it first. It was obviously a porosity issue in the casting. This can happen to any mfger.

IMG_7199.jpeg


IMG_7185.jpeg
 
Randy Wilson said:
This the action plus knock off I was talking about

View attachment 1921072
Click to expand...

Yes, I saw those after I posted.

440 Source is also selling the exact same thing (same picture I think too): Dual Plane Intake Manifold - SATIN - B Engines 440Source made it sound like they made them up. And sounded like they were exclusive. Guess not.

440 Source is also selling the RPM knock off's too.

So 440 Source is selling both an Edelbrock RPM -RB and a Weiand 8009/8 dual plane intake knock off's/tribute/brought back from the dead.
 
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