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COMP Cams

COMP Cams Adjusting NutsGm LS1 3/8

MPN: 4654-16 Catalog #: 001108634 Category: Lifters Check Vehicle Fitment

Product Details

Designed for ultimate strength and locking force High Energy and Magnum polylocks are best for moderate lift and spring pressure Applications Hi-Tech Polylocks work well in all high end Race applications. The Stud girdle polylocks are precision ground for minimum runout and tapered for extra strength in the locking area.

GM, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, LS1, LS2, LS3, LS4, LS6, LS7, LSA, LS9, Camaro, Silverado, LS Swap, 383, 350, SBC, Chevelle, Yukon, L92, LM7, 325, GMC, Trailblazer, Corvette, GM LS, GEN III, GEN 3, GEN IV, GEN 4, DOD, AFM, VVT, BTR, Texas Speed

These adjusting nuts replace the adjusting nuts that come with our adjustable Ultra Pro Magnum rocker arms for GM LS1/LS2/LS6 and LS3.

Adjusting Nut Set for GM LS1/LS6/LS3 Ultra Pro Magnum Adjustable Rocker

Adjusting Nuts Ultra Pro Mag LS Rockers

4654-16 - adjusting Nuts,GM LS1 3/8

COMP Cams Adjusting NutsGm LS1 3/8

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 - LSMatched variant: LS

GM Gen III/IV V8; LS1/LS2/LS3/LS6/LS7/LS9/LSA/LSX

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
4654-16
Catalog Number
001108634
Product Line
Comp Cams Adjustable Nuts
Category
Engines & Parts
Type
Lifters
UPC / Barcode
036584042778
Vendor Product Category
Engine Components
Vendor Product Subcategory
Lifters
Length
9.50 in
Width
5.75 in
Height
1.50 in
Weight
1.04 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 7 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: 7 available as of 6/3/2026.

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