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Howards Cams Direct Lube Extreme-Duty Mechanical Lifters
Lifter, Mechanical Flat, Direct Lube, AMC 304-401, Chrysler, Big, Small Block, Each
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Estimated Ship Date: Dec 29, 2026
Overview
Brand:
Manufacturer's Part Number:
91718-1
Part Type:
Product Line:
Summit Racing Part Number:
HRS-91718-1
UPC:
840793120833
Lifter Style:
Mechanical flat tappet
Lifter Link Bars Included:
No
Lifter Outside Diameter (in.):
0.904 in.
Lifter Offset:
None
Lifter Seat Height (in.):
1.795 in.
Quantity:
Sold individually.
Howards Cams Direct Lube Extreme-Duty Mechanical Lifters
Today's cams have more aggressive lobes. That's why increasing the oil supply to these lobes is critical. Howards Cams uses a precision "E.D.M." laser to burn a .021 in. hole in the center of the face of their direct lube extreme-duty mechanical lifters. This allows for a constant oil supply to the cam lobe, resulting in higher valve spring pressures, more aggressive profiles, and reduced lobe wear.
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Some parts are not legal for use in California or other states with similar laws / regulations
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