Stock Magnum heads vs Aluminum edelbrock heads

[Slantsix64]

Hey guys was wondering how much hp and torque I could gain going from stock ported magnum heads with upgraded springs to edelbrock heads!

The camshaft is mild 220@50 .479 lift

If I would do this I would probably use a 236@50 duration with .550 lift camshaft grind or something along those lines.

This is just a guesstimate throwing a idea out there!

 

[MOPAROFFICIAL]

You would have to provide flow numbers for any comparison

 

[Tsully]

@MOPAROFFICIAL

Here’s PIE’s flow numbers for all their heads!

First picture is their CNC ported Iron Level 2 heads followed by their 2 levels of Edelbrock. Their level 2 Eddy’s have 2.08 valves… the others have 2.02.

They’re not cheap… but with a magnum we’re limited to what is out there!

 

[Garrett Ellison]

What are the heads going onto… 5.2,5.9, stroker 408? How much compression does it have?