Lifter - Pro Magnum - Hydraulic Flat Tappet - 0.904 in OD - Small Block Mopar / B / RB-Series / AMC V8 - Set of 16

Engine Valve Lifter

Pro Magnum Hydraulic Flat Tappet Lifters. Specifications .904" Diameter - 107g Weight - 1.84" Seat Height. 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 requiredPre-load .002"-.004" with engine warm. Applications: AMC V8 290-401, Chrysler, Small Block V8 273-360Big Block B Series 383-440 ('68+)

Additional Information

These Pro Magnum hydraulic lifters are designed to perform at high RPM without any harmful pumping up. These lifters for Chrysler 273-360 and 383-440 yield significant power increase over standard hydraulic lifters.

Part Type

Engine Valve Lifter Kit

Product Overview

*Pro Magnum Hydraulic 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

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

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Product Details

Product Downloads

#	Document Type	Download
1.	Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Lifters, Hydraulic Flat Tappet, AMC, Mopar, Set of 16

These COMP Cams Pro Magnum hydraulic lifters are specifically designed to perform at higher engine speeds. When engines are equipped with a hydraulic camshaft, high rpm is limited by the improper positioning of the internal piston as the lifter inevitably "pumps up." This improper location results in broken valves, and, therefore, leads to lost power or sometimes even engine failure. These lifters offer a distinct advantage over standard high-performance hydraulic lifters, especially in race applications where a hydraulic lifter must be used.