Drag Illustrated Issue 149, October 2019

TITANIUM! NEW! QPAC Stem Superfinishing Bo Butner Sean Bellemeur Manley Titanium Valves Help You Achieve Optimum Power With Complete Reliability In A Wide Variety of Engine Combinations Over the years, Manley’s one-piece forged titanium valves have established a solid reputation for quality and durability. They’re a proven enhancement for all types of engines; normally aspirated, blown, turbocharged and nitrous oxide boosted. Some recent examples include 2019 NHRA Winternationals Pro Stock winner Bo Butner and his KB Racing teammates, plus 2018 TAFC World Champion Sean Bellemeur. NEW! “Fuel Formula” High Hardness Intake Valves Light…And Lighter Important New Technology Titanium’s 40% weight saving over steel is obviously an important factor in higher RPM potential and reduced valve train wear. But there’s more! Another 10-12% weight savings can be had through precision gun-drilling the stems of intake valves. Hard tool steel tips can be employed on 5/16” and larger hollow stem valves. Manley now offers “Fuel Formula” intake valves that provide increased strength [>200ksi] and hardness [HRc 45-47] WITHOUT compromising ductility [>12% Elong]. These valves are ideal for severe applications such as fuel-burning supercharged as well as blown and turbo ProMods. Another new technology for 2018 is QPAC stem superfinishing. This low cost option results in an ultra-smooth stem finish [Ra 2-3] that reduces valve guide wear, but unlike tumble finishing, maintains the crisp edges of the seats and margins for optimum airflow and horsepower. Custom Sizes…Done Promptly! In addition to the hundreds on shelf-stock part numbers, Manley Performance can manufacture titanium valves for just about any application. A large inventory of “blanks” is maintained in all popular stem sizes (and coated for compatibility with a multitude of heads), which can then be finish machined to your exact needs. POWERS THE 732-905-3366 Hundreds of Applications Manley has shelf-stock titanium valves in various lengths for all popular engines, as well as aftermarket cylinder heads. This includes AJPE, BAE, Brodix, Dart, NRE and many others. These are truly “Ready-to-Run” with many intake and some exhaust valves CrN seat face coated. WINNERS manleyperformance.com Contact us or go online to get a copy of our current catalog.

Drag Illustrated Issue 149, October 2019 | Page 131