Thread: 454 build - what intake and cam ?

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Thank you every one for all your input and photos !! I really appreciate all the input !!

Every thing said about milling the pistons is taken on board. I will keep you guys posted on how it goes.

techinspector1, can I bounce another cam option off you (and anyone else too) please.

We agreed that the Edelbrock "performer RPM" intake was suitable for my application.

I have been researching and found that Eddelbrock offers a "Top end kit" their part number 2095, which includes 2 aluminum heads, the performer RPM intake and their 7162 camshaft.

They say this complete kit has been tested on a 9.6:1 compression 454 and produces 540HP and 539 ft/lbs which are great figures for my application.

I was wondering about using their camshaft in place of the comp cams 11-600-8.
Edelbrock states that this camshaft is matched to perform with their RPM intake, which I will be using anyway.

I would use those with my existing 781 heads and later on, once the car is running if I feel I want more performance out of it, I could install their RPM heads which would then make up their top end kit.

I have looked at their power and torque graph for the top end kit on the 9.6:1 454 and compared it with the graph obtained from Comp Cams online cam quest software. I plugged in all the numbers and looked at the graph for their 11-600-8 cam

The Edelbrock cam seems to be more suitable for me because it provides more power and torque even at the lower revs.

I have watched a video of a Chevelle online, which is running the top end kit on a 60 over 454 and it sounds great too.

Your valuable input please

Originally Posted by ceejay

I would use those with my existing 781 heads and later on, once the car is running if I feel I want more performance out of it, I could install their RPM heads which would then make up their top end kit.

Problem there is that your iron heads are 124cc's. Aftermarket aluminum heads are ~110cc's, so if you use pistons that will accomodate the 110cc chambers later on, your SCR with the iron heads will be in the toilet, you won't be able to run much cam and you'll want to throw rocks at the car. The Edelbrocks will need a complete porting done to them, to flow halfway decent. They never impressed me. If you'll sit still and give me a few days, I'll try to fire up my DynoSim software and run in a set of Airflow Research 3610-1 heads (265 cc intake runners), hydraulic roller cam and Edelbrock RPM intake with ~950 carb at ~10.0:1 SCR, which will work with 91 pump gas if you build the squish/quench at 0.035" to 0.040". Matter of fact, if you want to try some different parts, tell me what you want to see and I'll try to run 'em on the DynoSim.

Take a look at this article and tell me if you have any interest in building this AFR 265 motor or not....
http://www.airflowresearch.com/engin...-265cc-bbc.php

Here's another....
http://www.airflowresearch.com/super...-265cc-bbc.php

Edelbrock had to use quite a lot of camshaft to achieve the numbers that they publish for their top end kit and I don't think you'd be happy with their cam on the street. Look at the chart on the little 222 cam with a dual-plane intake from the first test posted above. Pretty impressive and would make an excellent daily-driver motor because torque is what moves the car. Compare these flow numbers using tiny little 265cc intake ports to the Edelbrock flow numbers with larger 290cc intake ports. The AFR ports will create more velocity to help fill the cylinders better on the stock to once-overbored, stock stroke 454.
Air Flow Research
Aluminum Cylinder Heads - Chevrolet - Big-Block - Oval Port - Performer RPM - Edelbrock, LLC.

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