Our Patented Original Rhoads Variable Duration Lifters are now available for OE Roller applications. They increase low-end torque, engine vacuum and idle quality on engines equipped with performance hydraulic cams, while maintaining maximum top-end power. Many satisfied customers also report better fuel economy and improved emissions quality, allowing them to pass emissions testing when they otherwise would have failed. Orginal Rhoads OE Roller Lifters reduce lift and duration at idle by approximately .010" to .020". Duration is reduced by approximately 10 to 15 degrees. Total lift and duration are restored at approximately 3500 rpm. Typical vacuum increases range between 1 to 3 inches. They may be used with adjustable or non-adjustable valve trains. They are designed for use with high-performance street, marine or racing applications. Original Rhoads Lifters with their legendary "ticking" at idle, sound similar to solid lifters. Oil viscosity, valve spring pressure and engine temperature all combine to affect the total leak-down of the lifter at idle. Therefore total leak-down is only approximate. Original Rhoads OE Roller Lifters are also anti-pump-up for higher rpm revs. They are particularly useful in allowing larger cams to be used in computer controlled engines without disrupting proper computer functions.
"I can't believe the power and torque I got. Your lifters are beyond the best! It was worth everything to go to the Rhoads Lifters. Around town driving in my Hopped-Up car is great! Thanks to you all."----Randy Dillingham, Portland OR
|202 E. Main St
San Manuel, AZ 85631
Phone: (520) 229-9375
Fax: (520) 385-4596