Howards Cams 91144 Chevy Ultra Max Bushed Mechanical Roller Lifters

Howards Cams designed these 91144 Ultra Max Bushed Mechanical Roller Lifters for Big Block Chevy Mark IV and Gen 5/6 engines. The solid bushings are able to withstand ultra-high spring pressures as well as the most aggressive cam lobes.

These lifters feature “Full Time” high pressure oiling (HIPPO) to the bearing axles. This continuous oiling in use with the solid roller bushings offers the highest rpm as well as high spring pressure capabilities available.

Ultra Max lifters feature lightened, steel alloy bodies with a special enhanced finish in addition to heat-treated stainless steel link bars. The .300 in. taller body allows these lifters to fit early, late model, as well as aftermarket blocks.

Howards Cams 91144 Ultra Max Bushed Mechanical Roller Lifters Specs:

• Fits Big Block Chevy Mark IV and Gen 5/6 engines
• Lifter Style: Mechanical Roller
• Case hardened 8620 rollers
• Body Diameter: 0.842 in.
• Lifter Seat Height: 1.890 in.
• Lifter Body Height: +.300 in.
• Lifter Intake Offset: Center
• Lifter Exhaust Offset: Center
• Lifter Wheel Diameter: .750 in.
• Link Bar Type: Vertical
• Features High Pressure Pin Oiling System (HIPPO)
• Fully Rebuildable
• Quantity: Sold as a set of 16

Howards Cams produces high-performance cams and valve train components designed to boost the performance of a number of different V6 as well as V8 engines. They also manufacture several other engine parts such as connecting rods, crankshafts, and more. All built with the same passion and precision that has made Howards an industry leader for over 70 years.

Howards Cams designed these Lifters for high performance on the dragstrip.