SKU: COM85401-2
MPN: 85401-2
The BBC Retro-Fit Hyd Roller Lifters by COMP CAMS (Part No. 85401-2) are hydraulic roller lifters specifically designed for big block Chevy engines that require a retrofit upgrade to modern roller technology. These lifters are ideal for builders and engine shops looking to modernize classic big block Chevy platforms.
Engineered to replace older flat-tappet designs, these lifters offer improved valve train stability and reduced wear. The internal oil galleries and spring-loaded rollers reduce friction compared to solid lifter designs, leading to lower parasitic drag and extended component life. The 0.842-inch outside diameter (OD) ensures compatibility with big block Chevy bores, while the link bar design synchronizes lifter action across the valve train.
These lifters are particularly beneficial for big block Chevy engine rebuilds and modernization projects where stock components are worn or damaged. Proper installation requires compatible cylinder heads, a matching camshaft ground for roller lifter geometry, and the correct pushrod length to maintain valve train geometry. Verify your engine block type and valve cover compatibility before installation.
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