Fits Following Engines: 5.0L HO Ford Small Block V8
Fits Following Engines: 5.4L Ford Modular V8
Fits Following Engines: 255 CID Ford Small Block V8
Fits Following Engines: 289 CID Ford Small Block V8
Fits Following Engines: 351C Ford Small Block V8
Fits Following Engines: 351M Ford Small Block V8
Fits Following Engines: 351W Ford Small Block V8
Fits Following Engines: 221 CID Ford Small Block V8
Fits Following Engines: 460 CID Ford Big Block V8
Fits Following Engines: 302 CID Ford Small Block V8
Fits Following Engines: Boss 302 CID Ford Small Block V8
Fits Following Engines: 260 CID Ford Small Block V8
Fits Following Engines: 429 CID Ford Big Block V8
Product Details
Retro-Fit ProMax High RPM™ Hydraulic Roller Lifters (91270) by Howards Cams®. Designed to operate at rpm ranges over 7000 rpm. All new internal valving for increased rpm, torque and horsepower. The lifter body is fully machined from alloy steel bar stock. The nose wheel is machined from 8620 material and case hardened for durability. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a hassle free installation, this reliable product can help you get you vehicle back on the road faster and easier.
Notes
Spring pressure requirements for these lifters are 200-225 lbs. seat pressure, 500-575 lbs
Open pressure
Specific lash adjustments are also required
Specifications
Lifter Body Diameter: 0.875
Lifter Body Height: Standard
Lifter Exhaust Offset: Center
Lifter Intake Offset: Center
Lifter Seat Height: 2.667
Lifter Type: Hydraulic Roller
Lifter Weight: 325g
Lifter Crossbar Direction: Vertical
Quantity: 8 Pairs.
Features
Designed to unlock more performance out of your vehicle
Deliver a reasonable balance of strength and durability
Premium construction built with unmatched quality standards
Ensure smooth, reliable operation and long-lasting service
Painstakingly designed to meet your racing needs
State-of-the-art manufacturing technology
Made from the highest grade materials
Subjected to stringent quality controls
Proudly made in the USA
If you’re serious about being number one on the track, be serious about Howards Cams®! Howard Cams stays at the forefront of the racing industry, offering you some of the most technically advanced and reliable performance parts on the planet. Established by Howard Johansen under the name Howards Power & Racing Equipment, the company started as a manufacturer of racing camshafts in 1945. In 1998, the company retooled its facility in Oshkosh, Wisconsin and changed its name to Howards Cams & Racing Components. With the new facility, Howards Cams expanded its product line to include precision forged steel connecting rods and crankshafts, billet main caps, and many other racing parts. Howard Cams uses the most advanced computer design software and the highest-grade materials to create parts that give a winning performance for years to come. Choose Howards Cams: leaving competition in the dust!
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