Sale

Engines and Components› Camshafts and Valvetrain

GM

Hydraulic Flat Tappet Camshaft, V8, 222 Duration

$280.21 $194.95 Save $85.26

SKU: 3863151

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Overview

The GM 3863151 is a camshaft designed for Chevrolet 262-400 cubic inch V8 engines. It features hydraulic flat tappet lifters and has a duration of 222 degrees at 0.050 lift for both intake and exhaust valves. This camshaft is suitable for carbureted or tunable fuel injection systems and is intended for racing or competition use only.

The specifications include an RPM range of 1800-5800, a valve timing of 0.001 inches, and a lobe separation of 114 degrees. It has a valve lift of 0.447 inches for both intake and exhaust.
Show original supplier description
The GM 3863151 camshaft is a replacement part designed to replicate the performance of factory muscle cams for Chevrolet small-block engines, specifically those with 262-400 cubic inch displacements, manufactured between 1958 and 1998. This camshaft utilizes hydraulic flat tappet lifters and offers a duration of 222 degrees at 0.050 inch lift on both the intake and exhaust sides, with a corresponding valve lift of 0.447 inches. This camshaft is identified by its factory ID number 3863151 and was originally specified for 327 cubic inch engines producing 350 HP (1965-1968) and 325 HP (1967-1968). The "factory MuscleT" designation indicates that COMP Cams has reproduced these original muscle car cam specifications to their own strict tolerances. The operating characteristics include a recommended RPM range of 1800-5800, a lobe separation angle of 114 degrees, and an intake centerline of 114 degrees. It is crucial to note that this camshaft is designated for RACING/COMPETITION Use Only. For California residents, non-compliant parts may only be used on designated closed-course racing vehicles that are never registered for highway use. Other regions should consult local statutes and ordinances to ensure compliance with emissions standards. The GM 3863151 camshaft is listed as fitting a wide range of Chevrolet small-block applications from 1958 through 2002, covering engine displacements from 262 to 400 cubic inches. Specific fitments include various Buick models such as Century, Commercial Chassis, Electra, Estate Wagon, LeSabre, and Regal, as well as AM General Hummer and Avanti models.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandGM
Part Number3863151
CategoryEngines and Components

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy