Are Edelbrock Performer RPM heads good?

Performer RPM Cylinder Heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These heads deliver great throttle response and power from 1,500 to 6,500 RPM. These heads feature the highest quality intake and exhaust valves and valve springs.

How much horsepower will Edelbrock heads add?

After installation of the Edelbrock Performer RPM Hemi heads, the peak numbers jumped to an impressive 508 hp and 469 lb-ft of torque. The Edelbrock heads were worth 49 hp and 28 lb-ft of torque, with gains increasing past the power peak.

Where is the part number on Edelbrock heads?

Its only on the top of the head. As far as I know, 6025 is the casting number on all Performer and Performer RPM heads.

What is the head flow on Edelbrock performer?

28″
All Edelbrock cylinder heads are flowed at 28″ of water, which more closely represents what an engine will see. Beware of companies flowing heads at anything less than 28″ of water, because that is not a valid comparison with Edelbrock heads.

Is Edelbrock going out of business?

Edelbrock will be permanently closing its headquarters in Torrance, California, after being based in the state more than 80 years.

Is Edelbrock a good brand?

As the manufacturer of carburetors, camshafts, cylinder heads, and more, Edelbrock has built a trusted reputation amongst classic car owners across the nation. There’s a reason the company calls itself “the most respected name in performance.”

Do aluminum heads make more power?

Aluminum heads will dissipate heat faster. This allows for higher Compression Ratios with less risk of Detonation. The cooler head also delivers a cooler air/fuel mixture to the combustion chamber. Cooler air is denser and can make more power.

Why is Edelbrock shutting down?

The move to Mississippi is fueled mainly by the need for growth and Edelbrock’s inability to fulfill its needs at the Torrance facility at a reasonable cost. In addition to the property itself not being conducive to expansion, the location has also been the root cause of the company’s high cost of labor.

Is Edelbrock shutting down for good?

Can you put aluminum heads on a cast iron block?

If you are installing aluminum heads on a cast-iron block, the difference in expansion rates can cause sealing problems. Because of this, composite gaskets seem to work best. Just make sure whatever you use is applicable in an aluminum-head/iron-block situation.

Are aluminum heads worth the money?

Yes they are worth it. Pretty much every aftermarket head is worth a good power increase over any stock head. I like the aluminum heads since they are easier to port, repairable, and give a nice weight reduction. They usually are only a few hundred more than the iron heads.