Do Roller Rocker Arms Add Horsepower?
- Episode aired Dec 4, 2017
- 18m
One of the most common valvetrain upgrades for pushrod-style engines is roller rocker arms, which are often said to increase horsepower through reducing friction. But is it true? You'll soon... Read allOne of the most common valvetrain upgrades for pushrod-style engines is roller rocker arms, which are often said to increase horsepower through reducing friction. But is it true? You'll soon find out as we use a 7,000-rpm, small-block Chevy to test stock-type stamped-steel rocker... Read allOne of the most common valvetrain upgrades for pushrod-style engines is roller rocker arms, which are often said to increase horsepower through reducing friction. But is it true? You'll soon find out as we use a 7,000-rpm, small-block Chevy to test stock-type stamped-steel rockers, roller-tip rockers, full rollers, and full rollers with a ratio of 1.6:1 rather than th... Read all