5.0L Head ShootOut
Stock vs. Brodix KC LH17 195 (347 Ford)
The true test of any performance upgrade is not whether it adds power, but whether the gains are offset by losses elsewhere in the curve. Any time you increase the power output throughout the rev range, you know you've done something right. Replacing the stock E7TE iron 5.0L heads with the Brodix KV LH17 195 heads resulted in improvements in the power curve from 3,000 rpm to 6,800 rpm. The head swap improved the power output of the 347 by 110 hp and 40 lb-ft of torque. Equipped with the stock heads, the 347 produced 351 hp and 395 lb-ft of torque. This compares to 462 hp and 435 lb-ft of torque with the Brodix heads.