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COMP Cams

COMP Cams Tool Ford 3V Cam Phaser Spring

MPN: 5447 Catalog #: 001108034 Category: Tools Check Vehicle Fitment

Product Details

Cam phasers are specially designed, computer-controlled Cam Gears that automatically optimize Camshaft timing based on the current engine rpm. Currently they are used in all 2005 and newer Ford Modular 3 Valve and all 2007 and newer GM L92 engines. Engine oil is pressure fed to the Cam phasers through a Series of passageways in the cylinder heads and Camshafts. The engine computers control solenoids that adjust this oil flow into and out of the phaser's control chambers, giving the ability to retard the cams up to 60 crank degrees. While this Technology provides tremendous efficiency benefits, such as fuel efficiency and the ability to always be in the best position for maximum power, regardless of engine rpm, it does present some limitations when it comes to performance Camshafts. With such a wide range of valve timing movement, there is very little piston to valve clearance, which limits you to small Cam profiles with little overlap. The COMP Cams Cam Phaser Limiter Kits for Ford Modular 3V engines and GM Gen IV VVT (Variable Valve Timing) engines restrict the range of Cam timing movement to only 20 degrees, thus providing the necessary valve clearance for Serious performance cams with tighter lobe separations - all while still utilizing the benefits of VVT Technology. Combining this performance modification with more aggressive Cam profiles has resulted in some of the largest upper-rpm gains we've ever seem from such a simple valve train adjustment without sacrificing any bottom end or mid-range performance.

The 5447 VVT spring compressor tool allows you to compress the VVT spring before inserting our 5446 spring lock tool. Compressing the spring is required before installation of both the lock tool and phaser limiters.

Cam Phaser Limiter Spring Compressor for '05+ Ford 4.6/5.4L Modular 3 Valve

Ford; Modular; 3-Valve; Mustang; Mustang GT; SN95; 3V; Mercury

COMP Cams Tool Ford 3V Cam Phaser Spring

Limiter Spring Comp 05+ Ford Mod 3V

VariableTimingAdjstr

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

Ford - ModularMatched variant: Modular

4.6/5.4 Modular V8

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

Product Specs

Brand
COMP Cams
Part Number
5447
Catalog Number
001108034
Product Line
Comp Cams Tools
Category
Fab, Tools & Shop Equipment
Type
Tools
UPC / Barcode
036584181033
Vendor Product Category
Tools
Vendor Product Subcategory
Tools
Length
4.00 in
Width
2.00 in
Height
0.50 in
Weight
0.05 lb
Units Per SKU
1
Freight / LTL
No
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 4 Available - Ready to ship
Estimated timing Ships from factory

This item is showing manufacturer availability and may ship directly from the manufacturer. Tracking details are provided as soon as they become available. ETA 0-5 Days to ship.

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: 4 available as of 6/4/2026.

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