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COMP Cams

COMP Cams Pro-Mag Hydr Lifters Chevy SB

MPN: 858-16 Catalog #: 001109082 Category: Lifters Check Vehicle Fitment

Product Details

Pro Magnum Hydraulic Flat Tappet Lifters. Specifically designed to perform at higher engine speeds. Proper position of internal piston at higher RPM prevents lifters from harmful pumping up. Unique design yields significant power increase over standard hydraulic lifters. Adjustable valve train required. Pre-load .002-.004 with engine warm. Applications: Chevrolet, Small Block V8 265-400, Big Block V8 396-454, Big Block V8 348-409 ('58-'65). Specifications: .842 Diameter - 99g Weight - 1.93 Seat Height.

These Pro Magnum hydraulic lifters are designed to perform at high RPM without any harmful pumping up. These lifters for Chevrolet Small/Big Block and 348-409 yield significant power increase over standard hydraulic lifters.

Pro Magnum Hydraulic Flat Lifter for Small and Big Block Chevrolet.

COMP Cams Pro-Mag Hydr Lifters Chevy SB

Pro Mag Hyd Flat Lifter SBC/BBC

Engine Valve Lifter Kit

Engine Valve Lifter

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

GM - BBCMatched variant: BBC

Big Block Chevy; 396/427/454/572

GM - SBCMatched variant: SBC

Small Block Chevy; 265–400ci

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
COMP Cams
Part Number
858-16
Catalog Number
001109082
Product Line
Comp Cams Lifter Sets
Category
Engines & Parts
Type
Lifters
UPC / Barcode
036584930037
Vendor Product Category
Engine Components
Vendor Product Subcategory
Lifters
Length
7.90 in
Width
2.20 in
Height
2.20 in
Weight
3.57 lb
Units Per SKU
1
Freight / LTL
No
Ship Alone
No
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 144 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 144 available as of 6/3/2026.

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