Cylinder Heads Price VS Performance - Big-Block Cylinder Head Test

5,200	525	519	576	570	583	577	590	584	588	582
5,300	515	520	570	575	578	583	583	589	583	588
5,400	507	521	563	579	572	588	576	593	576	593
5,500	496	519	555	581	566	593	568	595	569	596
5,600	487	519	546	582	558	595	558	595	560	597
5,700	476	517	536	582	549	595	547	594	550	596
5,800	465	513	527	582	538	595	537	593	538	595
5,900	451	507	518	582	528	594	527	592	528	593
6,000	438	500	510	582	519	593	517	590	517	591
6,100	423	492	500	581	506	588	505	586	507	589
6,200	407	481	487	575	494	583	490	579	495	584

Peaks and Averages
	Avg. TQ	Avg. HP	Peak TQ	Peak HP
Iron	541.1	475.0	595	521
Edelbrock	582.1	514.9	618	582
Dart	584.2	517.7	615	595
TFS	590.3	522.5	626	595
Brodix	590.8	523.0	626	597

Price Vs. Performance
Here's where this gets interesting. The Brodix, Dart, and TFS heads all made strong peak power, leaving the Edelbrock slightly behind. Then we divided the price of each pair of heads by their peak horsepower. Here, the Edelbrock is the clear winner in terms of horsepower per dollar. One note for clarity's sake: We added the price of the Brodix CNC chamber modification to the price of the heads, since that's the way the heads were tested. What this shows is that the Edelbrock heads offer excellent power for the money. There's something to be said for combining value with all-out power.