Lunati® - Concentrated Engine Break-In Additive 12 oz

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$10.19 - $122.26
OUT OF STOCK - Unavailable until further notice
Custom Built / Racing
Fitment Notes:
  • Not Vehicle Specific. May require professional installation. Typically used with custom built or racing vehicles
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Product Details

Universal Concentrated Engine Break-In Additive 12 oz by Lunati®. Break-In Additive replaces the essential anti-wear molecules that have been removed from modern motor oils. It restores critical Zinc (ZDDP), Phosphorus and Sulfur to the proper levels needed for protection of internal engine parts ??“ especially those in flat tappet valve trains. Designed for both conventional & full synthetic oils, this concentrated additive was developed to meet the needs of initial engine break-in as well as extended use with every oil change. Used in most endurance racing applications, a rev kit is used to aid the lifter in accurately following the cam profile. As a result, it protects the engine in case of a pushrod or rocker failure by keeping the lifter in the bore. Extruded aluminum rev kits are designed to fit the block and should require no machining. Lunati Rev Kits come with all the necessary springs and buttons and are the failsafe way to prevent catastrophic failure.



  • High quality at an affordable price
  • Expertly made from premium materials
  • Built to match your exact requirements

Lunati® has been on the crest of a wave in racing technologies since the 1960s. Founded by a former drag racer who ate, slept and breathed racing, the company manufactured the highest quality performance internal engine components for both street and race vehicles. Lunati with its crankshafts, pistons, piston rings and complete engine rotating assemblies along with valve train components and camshafts is a main source of the most reliable high performance engine parts for NHRA, IHRA, NMRA & NMCA series racers and hot rod fans in the United States and all over the world.

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Warranty Information


Lunati® LLC warrants its new performance products to be free from defects in material and workmanship for a period of 90 days from date of purchase.

Lunati® LLC warrants its camshafts to be free from defects in material and workmanship and is guaranteed for 90 days against excessive lobe wear, provided the complete Lunati® LLC camshaft kit is purchased with the camshaft, and properly installed.

The Lunati® LLC limited warranty specifically does not apply to products which have been (a) modified or altered in any way; (b) subjected to adverse conditions such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, corrosion or faulty repair; (c) used in other than those applications recommended by Lunati® LLC. Lunati® LLC also does not warrant, and disclaims all liability for products used in racing activities and/or applications other than those specifically recommended in the current Lunati® LLC catalog.

This Lunati® LLC limited warranty is extended to the original consumer only. This limited warranty is not assignable or otherwise transferable. There are no warranties express or implied beyond this limited warranty.

In the event of an alleged defect in material or workmanship, the responsibility of Lunati® LLC is strictly limited to either repair or replace the defective product. Lunati® LLC has no other obligation, express or implied. Final warranty determination will be at the sole discretion of Lunati® LLC shall not be responsible for (a) actual or alleged labor, transportation or other incidental charges, or (b) actual or alleged consequential or other damages incurred by use of any product of Lunati® LLC.


Lunati® LLC warrants all Professional Series Crankshafts, within specification listed herein, against breakage for a period of one year from date of purchase. The obligation of Lunati® LLC under the terms of this warranty is limited to the replacement of the broken crankshaft only, provided the crankshaft is returned pre-paid to Lunati® LLC for warranty inspection, with dated purchase receipt. No other parts, conditions or labor are covered by or included in this warranty.

Warranty is restricted to crankshaft installations in non-supercharged, or naturally aspirated, applications. Strokes are limited to 3.750” – 4.500” on big block Chevrolet engines and 3.000” – 3.750” on small block Chevrolet engines. The crankshaft must be balanced by Lunati® LLC to be eligible for warranty.

This Limited Warranty sets forth specific legal rights. The consumer may have other rights as a result of variations in state laws or provincial laws.

This Limited Warranty supersedes all prior warranty statements.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More
Low Prices Price match guarantee
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