SKU: HRC91167-2
UPC: 840793119592
MPN: 91167-2
The Hydraulic Roller Lifters BBC Retro-Fit (2) by HOWARDS RACING COMPONENTS represent a purpose-built solution for big block Chevy engine builders seeking reliable hydraulic roller actuation in street and strip applications. These retrofit-style lifters integrate link bar technology with a 0.842-inch outer diameter, allowing seamless installation into existing BBC engine blocks without requiring complete internal redesign or replacement of core components.
Hydraulic roller lifters deliver consistent valve train geometry and reduced friction compared to conventional flat-tappet designs. The link bar arrangement ensures synchronized lifter action during high-RPM operation, critical when engine speeds approach or exceed 6,000 RPM. This configuration maintains valve timing accuracy and reduces the risk of valve float common in modified big block applications. The 0.842-inch diameter specification reflects precision tolerances necessary for proper bore fit and oil flow control within the lifter gallery.
These lifters serve builders upgrading street-driven or bracket-racing big block Chevys where retrofit compatibility is essential. The pair configuration covers one cam lobe cycle (two lifters minimum for testing, tuning, or completing a partial block modification). Installation requires proper lifter bore clearance verification and camshaft clearance confirmation to avoid contact during full valve lift. HOWARDS RACING COMPONENTS specializes in OEM-quality valve train components engineered for serious engine builders who demand precision over cost cutting.
For BBC engine applications combining modern reliability with historical block compatibility, hydraulic roller lifters represent the standard upgrade path. Whether refreshing a tired 396 or optimizing a purpose-built 454, this pair provides the foundational component required for dependable top-end performance. Verify camshaft specifications, lifter bore condition, and oil delivery volume before final installation to ensure long-term durability.
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