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Terms & Conditions

All parts that are sold by SPEED PERF6RMANC3 are for off-road use only. Installing these parts on your vehicle may render it illegal to operate on public roads. If you have questions regarding the legality of any part, please contact your local DMV.

Pricing is subject to change. We try to update the pricing on the web page as often as possible; however, it may not be 100% accurate due to constantly changing market pricing. We will contact you before we process your order to alert you if any prices have changed. Any orders on custom or made to order parts that have been placed and then canceled before the parts have been shipped; will be charged a 25% fee of the original total. If ordered parts are on backorder, you will be notified as soon as we are made aware of the fact. You will have the option to cancel your order at this time. Any cancellations after this point will be subject to a restocking fee. There will be no exceptions to this rule, including reasons beyond your control, such as your car was stolen/totaled/sold, etc.

General Warranty

SPEED PERF6RMANC3 products come with a 1 year warranty to be free from defects in material and/or workmanship and to perform as advertised when properly installed, used, and maintained in accordance with written/website instructions. Failure to adhere to and/or comply with operation manual/website instructions will void all associated warranty obligations. Should any part(s) prove defective within the specified warranty period, it (they) will be repaired/replaced. All shipping charges are to be the responsibility of the customer. SPEED PERF6RMANC3 LLC will not be responsible for labor charges, loss, or consequential damage of any kind or character caused by defective parts or for charges incurred in the replacement or repair of defective parts by Purchaser. This warranty does not apply when damage is caused by surface coatings, heat wraps, abrasive materials, chemical deposits, or corrosion, unless specified in writing prior to buying the product. Careless handling, including that by freight companies, and improper installation or use may void all warranties.

Any product covered by warranty that has failed will be repaired first. If a repair is not successful or feasible the product will be replaced with a new or similar condition item. SPEED PERF6RMANC3 must be notified of a failure within the warranty period and will then supply instructions to Customer or Dealer. The forgoing states the Company's entire liability for any claim to damages whatever, and is made by Company and accepted by Purchaser in lieu of all other warranties, obligations, or liabilities expressed or implied.

Built Engine Warranty

SPEED PERF6RMANC3 Built engines offer a 1 year, 12,000 Mile warranty under the following conditions:

  • Engine must be purchased and installed by SP63
  • Vehicle must be dyno tuned on our in-house Dynojet dynamometer (or tuned by us at our local AWD Dyno)
  • Vehicle must remain on the tune it was given for the full length of the warranty period (assuming no changes by us needed to be made)

Proof of maintenance records must be sent in regularly DURING the warranty period in order to be eligible. Gathering receipts from oil changes, etc. AFTER there is a problem with the engine will result in a denial of warranty claim. Speed Perf6rmanc3 reserves the right to revoke this warranty at any time for any reason if we feel the vehicle has been overly abused and not properly taken care of during the warranty period. We will whole-heartedly support your drag racing or road course passion but behavior such as improper warmup or shutdown, failure to check oil levels regularly, improper oil used, etc. will not be covered under this warranty. Please contact us if you have any questions. Warranty is for parts only and does not include any labor whatsoever.

Shipping & Returns


No returns will be accepted without the original invoice. No returns after 30 days. Refunds on shipping/handling will not be granted on return items. No refunds or credits will be granted on any parts having evidence of being installed or used for testing. Please contact us for a Return Authorization Number before returning any parts for any reason. Any errors in your order must be reported within 2 business days of being marked "delivered" by the shipping company. This gives you ample time to check your invoice against the contents of the package. After this time frame, no corrections will be made. All acceptable returns are subject to a 45% restocking charge. "Acceptable Returns" is defined as a product in new and unused condition with all of the packaging and paperwork. If any of these conditions are not met, the parts will be returned to the customer at their expense and not credited. Refunds will be made in the original manner in which it was received.


Most orders are shipped out within 1-3 days. If you have a question about your shipping status please send us an email and we will respond with an update. If your shipping charges are substantially more then actual we will credit your account the difference for use on a future purchase. Shipping must be to the person and address that are on file with paypal. If damage to a package occurs during shipping, the claim must be filed with the shipping company. Please contact us for information such as the tracking number before contacting the shipping company to initiate the claim. SPEED PERF6RMANC3 will not be responsible for shipping damages. All packages will be shipped with insurance. All insured packages will be shipped "Adult Signature Required" to the shipping address of the credit card used. If you cannot sign for the package, and wish to have the driver leave the package at your doorstep, you alone will be responsible if it becomes lost or stolen. There will be *NO* exceptions made to this rule. 

Engine Shipping

Buyers are responsible for all engine shipments. We typically use http://www.engineshipping.com/ for all motor shipments. Your welcome to get a free quote from them in advance or else we can do it for you. We are a business location and we do not require a lift-gate service. Often times you can save $50-$75 if you ship the motor to a business and you do not need to use a lift gate service. You will be responsible for getting the engine off the truck and most long blocks weigh between 175 and 250 lbs.

A Note On Engine Builds

It is very important to understand the differences between OEM and Forged pistons, and what an appropriate application to use them in is. The majority of our customers drive their vehicles daily, and therefore reliability is always a factor to consider when building a street-engine. The single best way to stay very reliable and make good "useable" horsepower, is to use OEM pistons in your build. Forged Pistons are not designed to be used in a daily driven application. Forged pistons are designed to be used in a race engine where they are checked from top to bottom and rebuilt if needed after a specified number of races. Anyone who builds a street purpose motor has no intentions of tearing it down every 10k miles just to see how things are doing.

The reliability factor between OEM and forged pistons is in the material and how it behaves. Forged pistons are made from two different alloys, 2618 aluminum alloy and 4032 aluminum alloy. The difference is that 4032 has more silicone built into the piston, allowing for LESS thermal expansion, and allowing you to run a tighter piston-to-wall clearance (PTW). Piston-to-wall clearance is the area between the piston and the cylinder wall. This clearance is built into the bore so the piston can expand correctly. 2618 aluminum alloy has less silicone and expands much more than 4032. However, 2618 has proved to be stronger and can take much more abuse (detonation). Under detonation the ring lands become brittle and crack in 4032 alloy pistons. The disadvantage to having 2618 alloy is because of the loose piston-to-wall clearance that must be run. Typically, most manufacturers of 2618 alloy pistons require a wall clearance of .0030 to .0045in. (3 to 4 1/2 thousandths of an inch). When it is this loose, there will be a considerable amount of "piston slap". When you first start the engine and it is cold, you will hear the pistons rocking back and forth in the bore, giving off a clackity sound. As the engine warms up, this sound will diminish or disappear entirely, depending on the clearance.

Imagine this event in a daily driven engine. The car is started on an average of 2-4 times a day. Multiply that by a number of days, then weeks, months, etc. What ends up happening is your blocks cylinder walls become "chaffed" and "out-of-round" which leads to improper sealing and oil consumption.  All of this can happen on your engine build after only 15- 20 thousand miles. Race teams understand this and use the piston for what it is intended. OEM pistons are used in many autocross and road racing applications and should be used in your street builds. OEM pistons are used in road racing over forged pistons, because of the effective sealing properties and reliability that they provide.