Our goal is to blow your mind with a quality product as well as fast and friendly service.  We understand customers want to do business with us because we go that extra mile with our products and the same goes for our tech support team.  We do business all around the world and every one of our customers are treated like family.  So regardless of who you are or where you are, just know if you’re in the West Coast Engines family you are at the front of our attention and we want you to have an awesome experience and know with certainty that we back our work!!


 Performance Engines Advertised Under 499 HP

  • Coverage is for Manufacture Defects up to 5 Years/50,000 Miles
  • Labor Paid for Authorized Repairs is $75/HR ($450 Cap) for the first 3 Years


Performance Engines Advertised Over 500 HP

  • Coverage is for Manufacture Defects up to 3 Years/Unlimited Miles
  • No Labor is Paid for Authorized Repairs


All Marine Engines

  • Coverage is for Manufacture Defects up to 1 Year/Unlimited Hours
  • No Labor is Paid for Authorized Repairs



*Self-installed engines must be inspected and signed off by professional certified shop or mechanic to carry any labor payout.

*Labor is issued on authorized repairs only by our tech team in advance to the repair. Unauthorized repairs void the warranty.

*Warranty is void if engine is supercharged, turbocharged, or nitrous is used in any amount.

*Leaks and gaskets covered for 90 days after delivery

*Warranty is transferrable for additional fee

*Engines shipped overseas carry a limited warranty that does not include labor nor shipping coverages. Call for more information.

*All manufacture defects are covered in the warranty.


Changes Due to COVID-19 & Global Shortages

*We are fully up-and-running, normal hours, and mostly normal operations.

*Build times are a bit longer than usual. Currently we are 3-5 months from order date to shipment. Since we custom build each order, many engine parts (such as crankshafts, serpentine kits, intakes, EFI systems) are a special-order and wait time is longer than usual due to the pandemic.

*Engine break-in and live testing is available, but printable dyno sheets are unavailable until further notice but should be back soon. We still will take live videos of your engine running if the break-in is included in your turnkey or drop-it-in-and-go dress package.

*No refunds, returns, on any products.

*Cancellation fees are 25% of the of the total cost of the engine (freight and core not included). This is initiated on initial payment to start order.


Helpful Data

– If you have any questions or concerns please contact us first.  Do not tear through the engine and begin fixing it without our consent.  Doing so nulls the warranty.

– If you hear any strange noises or the engine is running funny, take it to a reputable professional mechanic immediately and have them call or email us.

– If you personally install your engine, to keep your warranty it’s mandatory to take your ride to a shop or have a pro mechanic present upon initial start-up to ensure the engine is tuned/timed/plugged-in/and coolant lines burped properly.  Have them sign your paperwork, keep a receipt, and submit your paperwork within 30 days of installation.

– If you need to make any repairs, prior authorization is required from the manufacturer before any work is to begin.  Labor is not covered without manufacturer consent.

– Any major changes done to the engine such as a conversion to fuel injection, NOS, force induction must be documented and reported to West Coast Engines immediately. If not the warranty will be void.


Computation of Labor Claims

To determine the total amount of the labor claim, multiply the flat rate time of the labor operation performed by the labor rate.  Diagnostic time is covered as part of the published repair time.  No separate diagnostic time will be paid out.  No additional time will be paid for the removing of special or auxiliary equipment, not included in the flat rate hours that are based on the manufacture manuals.


Exclusions from Warranty

The manufacture shall not have any responsibilities for loss of use of vehicle, damage, or personal injury to persons or property. Loss of time, all fluids, inconvenience, and loss of profits or income, travel expenses, towing charges, vehicle rentals, diagnostics, or any incidental or consequential damages arising from any defect in our product. The manufacture assumes no liability or warranty on any of our engines or heads used in any emergency services vehicles.


Warranties Void If….

A.) Engine’s assembly has been overheated or the heat tab has been removed

B.) Failure to properly clean all transferred components from old engine installed back onto new engine

C.) Engine oil cooler not replaced (flushing or cleaning not acceptable)

D.) Lack of lubrication, oil starvation, or low oil levels

E.) Failure due to act of nature (freezing, flooding, accidents, etc)

F.) Manufacture will not be liable, under ANY circumstances, for scored pistons or cylinders, broken ring lands, engine failures due to signs of overheating, detonation, lean run, pre-ignition, blown head gasket, fuel wash, oil starvation, or improper break-in procedures, flat cam lobes, distributor cams, cam gears, improper break-in oil.

G.) Manufacture specifically excludes liability for broken crankshafts or damage to thrust bearing on crankshafts after the installation of the engine

H.) All gaskets and seals that are installed by the manufacture are covered for 90 days after delivery. After that time the warranty is covered per manufacture warranty and limitations. Gaskets and seals naturally will dry-up, become brittle, and crack very quickly if the engine does not fire-up soon after delivery. It is wise to purchase a dyno session, install the engine, and put a couple hundred miles on the engine within the first 90 days to prevent leaks.

I.) Customer refuses to cooperate with West Coast Engines. For example, if we request your engine be pulled out of the vehicle and sent to our manufacturing facility for inspection and/or repairs and you refuse to do so, this will void your warranty.

J.) Warranty paperwork not submitted within 30 days of engine installation

K.) Not following the instructions per the installation guide which is emailed to you after the purchase is made.


Return & Cancellation Policy

– No returns/refunds on engines after 100% fully built or shipped. These are custom built engines that cannot be re-sold, therefore once the build is complete, there are no returns/refunds.

– There is a 25% cancellation fee if order is cancelled prior to engine being fully built or shipped.  This cancellation fee initiates after a credit card transaction is processed.

– Premium paint jobs, injection systems, serpentine systems, and other special-order parts are non-refundable.

– Freight charges are non-refundable.


Part Disclaimer

The name brand parts listed on product pages are subject to change based on availability and build type. Most engines are built per-order to the specific vehicle application. Internal parts and specs are subject to change in the effort to achieve optimum performance and dependability of the vehicle. Custom parts, engines, and equipment are non-refundable and non-exchangeable after the product is delivered.

West Coast Engines Unlimited does not guarantee any performance engine sold to pass emissions requirements.


Warranty on Accessories

Miscellaneous or auxillary smaller accessories on/around the outside the engine itself (IE: fuel pumps, carburetors, fuel injection systems, ignition systems, etc) are separate from the engine warranty. We honor the same manufacture warranty for that particular item. If that item is faulty, the customer must work with the manufacture of that item directly. West Coast Engines will help facilitate with any documents necessary to present to the part manufacture.

Here’s a real life example: Let’s say your Holley carburetor is faulty after six months. Call Holley directly to file a claim. If Holley needs any paperwork contact West Coast Engines. Holley has a 1 year warranty for their carburetors and West Coast Engines will honor that same warranty.


Performance Numbers

All horsepower and torque numbers advertised on our website are provided by the factory. These numbers were achieved on a professionally operated dynamometer to compensate for variables like altitude, temperature, relative humidity, vapor pressure, and barometric pressure, all of which impact measured horsepower and torque. If you do not purchase a complete crate engine, the selection of additional components (such as intakes, carburetors, etc.) and how those components are tuned, will have an impact on measured horsepower and torque. Ignition and fuel system components, as well as the fuel octane and quality of the fuel that you select, will impact the numbers. Please understand that, while horsepower and torque numbers are repeatable within reason, they will most likely not be reproduced identically.



Our builder(s) expressly warrants that its engines are of good quality and free from defects in materials and workmanship. Purchaser acknowledges that the West Coast Engines, LLC offers a factory-direct warranty direct through the manufacturer of the engine and warranty claims are handled directly with the manufacturer. PRIOR AUTHORIZATION IS REQUIRED FROM THE MANUFACTURER BEFORE WARRANTY WORK IS BEGUN. It is the sole responsibility of the purchaser to pay for such work (including labor and parts) and to submit the alleged defective parts, written order showing all charges, and a written receipt for payment of all charges to the manufacturer for review and determination by the manufacturer that the failure is or is not covered by this Limited Warranty.

Fuel injectors, fuel pumps, water pumps, distributors and other accessories sold by West Coast Engines, LLC have a 30-day warranty from date of delivery, after which time they are considered maintenance items and are not covered by this Limited Warranty. Parts included in installation kits provided by the manufacturer are warranted for defective workmanship and materials for that duration of time as stated by the original parts manufacturer.