COMP CAMS 12-400-4 Camshaft Pro Mag Hydraulic Lifters

( Brand: Comp Cams ), ( Manufacturer Part Number: 12-400-4 ), ( Country Of Origin: United States ), ( Type: Camshaft ), ( Comp Cams Camshaft Pro Mag Hydraulic Lifters: Chevelle Camaro Nova Trans Am Impala Corvette ), ( Oe/oem Part Number: 268th-15 858-16 ), ( Vintage Part: Yes ), ( Performance Part: No )

Review COMP CAMS Camshaft And Pro Mag Hydraulic Lifters

Introducing the Comp Cams 12-400-4 Camshaft Pro Mag hydraulic lifters a superior upgrade for your engine's camshaft system. These lifters are meticulously designed to deliver reliable, consistent performance, ensuring optimal engine operation.

The Pro Mag hydraulic lifters feature a unique, magnetically enhanced design that provides unparalleled lubrication and wear characteristics. The lifter body is machined from high-strength, low-alloy steel, providing excellent durability and resistance to wear and failure. The magnetic material inside the lifter body attracts and retains engine oil for consistent lubrication, even during high RPM operation.

The Comp Cams 12-400-4 hydraulic lifters are designed with a precise, OEM-style profile to ensure proper valve lash and timing. The lifters are also fully adjustable, allowing for easy fine-tuning for your specific engine application.

These hydraulic lifters are engineered to provide smooth, consistent valve action, eliminating the need for constant adjustments or the use of expensive flat tappets and lifters. The Pro Mag design also reduces engine noise and vibration, resulting in a quieter, more refined engine operation.

Additionally, the Comp Cams 12-400-4 Pro Mag hydraulic lifters are compatible with a wide range of engine sizes and applications, making them a versatile and valuable upgrade for any engine. The lifters are backed by Comp Cams' industry-leading warranty, giving you peace of mind and confidence in your purchase.

In summary, the Comp Cams 12-400-4 Camshaft Pro Mag hydraulic lifters offer superior performance, durability, and ease of use. With their magnetic design, precise profile, and adjustability, these lifters provide consistent valve action, reduced engine noise, and improved overall engine performance. Whether you're building a high-performance engine or simply looking for a reliable upgrade, the Comp Cams 12-400-4 Pro Mag hydraulic lifters are an excellent choice.

Composita Camshafts 12-400-4 Camshaft Pro Mag hydraulic lifters are known for their high-performance capabilities in various applications, particularly in racing and high-performance engines. Here are some pros and cons to help you make an informed decision about purchasing this camshaft:

1. High-performance: These camshafts are designed for high-performance applications, providing increased power and torque.

2. Magnetic Hydraulic Lifters: The magnetic hydraulic lifters help maintain valve clearance and eliminate the need for adjustment, making them ideal for high-RPM applications.

3. Durability: The camshafts are made from high-quality materials and are designed to withstand the rigors of high-performance use.

4. Versatility: These camshafts are available in various configurations to suit different engine applications.

1. Cost: These camshafts are more expensive than standard OEM camshafts due to their high-performance capabilities and advanced technology.

2. Installation: Installing these camshafts may require specialized knowledge and tools, which could add to the overall cost and complexity of the project.

3. Clearance: Ensuring proper clearance between the camshaft and other engine components, particularly in tight engine bays, can be challenging.

The Composita Camshafts 12-400-4 Camshaft Pro Mag hydraulic lifters are an excellent choice for those seeking high-performance capabilities in their engines. Their magnetic hydraulic lifters offer the convenience of eliminating the need for adjustments and their durability ensures that they can withstand the rigors of high-performance use. However, their cost and installation complexity may be a deterrent for some.

If you are looking to build a high-performance engine and are willing to invest in the cost and complexity of the installation process, then the Composita Camshafts 12-400-4 Camshaft Pro Mag hydraulic lifters are an excellent choice. However, if you are on a budget or are looking for a more straightforward camshaft option, then you may want to consider a standard OEM camshaft.

Details:

There was three layers of cardboard with heavy tape. It was shipped in great time. First off the parts were in better condition than photos. This Company would get 10 stars if possible.

See pictures for condition and wear as we rely heavily on photos. When I got to it, it was surrounded with bubble wrap.I am very happy this. Hope to do business again. Original Ford parts.

They were safely packed, in fact so well even I had a hard time unwrapping the parts. A used part may have dust, dirt, old paint, scratches or cracks. There was no way this could have been damaged or moved inside the box.The box fit it Perfectly. The instrument gauge bezel for my 1984 Bronco ll was better than advertised.

FAQs: Is this an original OEM part or a reproduction. Free shipping is to the lower 48 states only. The box was actually made specifically for what I bought. Absolute Best.

Comp Cams Camshaft Pro Mag Hydraulic Lifters Chevelle Camaro Nova Trans Am Impala Corvette. These are not new parts unless noted so please set your expectations accordingly. There are a very few select listings where there known issues. Whatever they have, I could use I m buying.

If you do not see a shipping price available to you, then your home country is blocking its availability. Original GM Muscle car parts. Factory high performance parts. Hard to find Mopar Parts.

Have never seen this before. The way this was packaged, Iowas very impressed. It is exactly what the photos depicted. This is smooch better than what I have.

Was very impressed with communication, packing. Applications are based upon various sources, although I try to make sure research is correct it can be flawed so please verify your applications.

part #: 124004 prices

• $259.95-$323.11

specifications cashalif:

• brand: Comp Cams
• mpn: 12-400-4
• country of origin: United States
• type: Camshaft
• comp cams camshaft pro mag hydraulic lifters: Chevelle Camaro Nova Trans Am Impala Corvette
• oe/oem part number: 268th-15 858-16
• vintage part: Yes
• performance part: No

returns cashalif:

• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days

shipping cashalif:

• type: Fixed
• service: USPS Ground Advantage, UPS Ground, FedEx Ground / FedEx Home Delivery
• cost: $0.00
• class: Standard
• carrier: USPS, UPS, FedEx
• transit: 9-12 Days

payments cashalif:

• wallet: Google-pay
• other
• credit card: Diners-club

general cashalif:

• condition: Used
• Engines Engine Parts > Valvetrain Components > Camshafts

offer cashalif:

• availability: In Stock
• sold: 0
• quantity: 1
• started: December 8, 2025
• options: Ship-to-home

seller cashalif:

• city: Tulsa, Oklahoma
• # reviews: 9963
• rating: 99.8%

Comp Cams 12-400-4 Is Similar To:

• 01-414-8 Comp Cams Xtreme Energy Hydraulic Roller Camshaft Lift (48.3% similar) Comp Cams extreme energy XR270HR hydraulic roller Camshaft lift...(October 16th, 2018)
• 01-415-8 Comp Cams Xtreme Energy Hydraulic Roller Camshaft 036584079903 (43.8% similar) ...(May 30th, 2018)
• 01-418-8 Comp Cams Xtreme Energy Hydraulic Roller Camshaft Lift 036584063469 (43.6% similar) Comp Cams extreme energy XR282HR hydraulic roller Camshaft lift...(June 21st, 2018)
• 01-421-8 Comp Cams Engine Energy Tm 036584063476 (30.5% similar) 540 ex lobe angle 110 deg item specifics: UPC: 76ASSOCIATED comments: hydraulic roller - extreme energy: street strip applications with 10:1 Compression and stall. Extended 240: Comp Cams extreme energy XE288HR-10 Camshaft for gen vi big block Chevy part type: engine Camshaft country of origin ...(July 5th, 2018)
• 01-424-8 Comp Cams 96-99 Chevy 036584063483 (30% similar) With adv exhaust. Duration 294 intake 300 exhaust. Designed utilizing the latest technology, this product by Comp Cams features premium quality and will perform better than advertised. With lobe separation extreme energy hydraulic roller Camshaft by Comp Cams. 4l with rpm notes:adjustable valve ...(July 31st, 2017)
• 01-451-8 Comp Cams Xtreme Marine Camshaft Hydraulic Roller Bbc Gen Vi (50.8% similar) Lobe separation degrees 112 quantity sold individually. Fitment information may not be available for all products and those without will have a Compatibility link. Valve lift with factory rocker arm ratio in. Advertised exhaust duration 290 intake 284 basic operating rpm range 2,200-5,800 cam ...(November 22nd, 2018)
• 01-535-8 Comp Cams 96-99 Chevy 036584127635 (30% similar) Duration 262 intake 270 exhaust. Designed utilizing the latest technology, this product by Comp Cams features premium quality and will perform better than advertised. With adv intake. With lobe separation exhaust. Teri-power extreme hydraulic roller Camshaft by Comp Cams. Fits following model's: ...(July 31st, 2017)
• 01-601-8 Comp Cams 97-99 Chevy 036584211945 (30% similar) Designed utilizing the latest technology, this product by Comp Cams features premium quality and will perform better than advertised. Designed utilizing the latest technology, this product by Comp Cams features premium quality and will perform better than advertised. Mouth thump hydraulic roller ...(July 31st, 2017)
• 056-4609 Itm Engine Components Comp Cams Fuel Pump Pushrod 036584392248 (25% similar) Comp Cams offers several fuel pump push rods for various applications. You can damage an expensive roller cam as a result of wear at the fuel pump lobe. Part condition new brand Comp Cams sold each details info roller tip fuel pump push rod, steel rod. Any visual damage must be noted on the shipping...(May 16th, 2018)
• 07-304-8 Comp Cams Camshaft Lt1 036584017776 (41.6% similar) Outside the contiguous USA. Item condition must be new and in original...(June 3rd, 2017)
• 07-305-8 Comp Cams Engine Camshaft-xtreme 036584017783 (37.8% similar) This part fits vehicles made in the following years 1992 , 1993 , 1994 , 1995 , 1996 , 1997 . Extended 240: Comp Cams extreme energy XE276HR-14 Camshaft for LT1 Chevy part type: engine Camshaft country of origin primary: us emission code 1HARMONIZED tariff schedule b life cycle status code: ...(October 21st, 2017)