Q: How long until my order ships?

Due to pandemic shut downs and other supply chain disruptions, parts for our builds are often back ordered or taking longer than usual. If you are in a hurry to get a part, please give us a call, or email us to ask about availability.

Q: How do I break in my new motor?

Engine Break In Procedure

Re-using old parts on your new engine:
Re-using old components is ok but they need to be thoroughly checked and cleaned.
If you are installing parts from a previous engine that had a failure, every part of that
component must be cleaned thoroughly. This is extremely important for cylinder heads.
The cylinder heads have many different oil galleries that can hold contaminants. Heads
need to be taken apart, oil plugs removed and cleaned. Lash adjusters should be
removed, cleaned and inspected for any type of metallic debris.
Timing Cover, Oil Pan and Valve Covers should also be cleaned thoroughly to remove
any dirt, dust or other types of contaminates.

***If you had a previous bearing failure, and you have an oil cooler, it must be
replaced. There is no good way to clean out the oil cooler assemblies.

Priming the Engine:
The best way to prime your new engine is to use some type of external pump the
pressurize the oil system using the 1/8” NPT port on the Oil Filter Adapter. This can be
done with a small fluid transfer pump for transmission fluids or a lawn style spray pump
with a modified tip. You will want to prime the engine enough that you can see oil
coming up to the top end through the oil fill hole in the valve covers. Failure to properly
prime the engine can result in bearing damage.

Oil Pump Pickup Tube to Pan Clearance:
This is extremely important. Oil Pickup clearance can easily change with the use of ARP
Main Studs, which all of our engines come with. Oil Pump Pickup to Pan Clearance
needs to be between .320” and .370”. Too close and the pickup will have issues with
picking up the oil. Too far, and you are simply cheating yourself out of oil capacity.
To measure, mock up the pan gasket you will be using, install the pickup tube with the
OEM stand off. Next you can simply put a piece of masking tape over the screen
portion, and then use a piece of clay or play dough on top of the pickup. Next, mock up
the pan in its correct position, push down firmly and then remove to measure the

If additional clearance is needed, you can trim down the stand off. If you need less
clearance, you can simply shim the pickup tube up, using small washers between the
top of the stand off and the bottom of the tube bracket.

Break In Oil / Filters:
For Break in Oil, we recommend Driven BR30, PN 01806. We recommend using this oil
for the first 2 oil cycles. 250-300 Miles, One dyno session or 5-6 hours of street driving
per oil cycle. It is extremely important the oil pressure be monitored during the
break in process. The break in oil will get watery and lose viscosity if it is ran too long,
resulting in lower oil pressure. After the 2 cycles of break in oil, you can switch to
synthetic if you would like. Do NOT use synthetic oil to break in the engine initially or the
rings will have issues sealing.
For synthetic oils, we recommend the Driven Racing products as well. If you need a
recommendation on viscosity, please call or email us for a recommendation.
For Oil Filter, we recommend K&N or Motorcraft only! Oil Filters must be changed with
every oil change, including the short break in cycles. Failure to do so can result in
engine damage.

Break in Procedure:
Once the engine is primed and all fluids have been checked, go ahead and start the
engine. You will want to check for any leaks or issues at this point. Let the engine warm
up to operating temperature, make sure the thermostat opens and the fans come on at
the proper time. If the engine is idling excessively rich, or your tune is way off, you need
to turn the vehicle off and consult with your tuner.
Do NOT start a new engine up with a tune that has not been calibrated for a different
size MAF sensor or Fuel Injectors. Overly rich fueling at idle will cause the fuel to wash
oil off the cylinder walls, causing the piston rings to glaze the cylinders. This will result in
less than adequate ring seal. Seating the piston rings is the #1 goal of the break in
The absolute best way to break in the engine after the initial startup is on a chassis
dyno. Mid RPM Range, High Load pulls will seat the rings very quickly. Plus, your tuner
will be able to monitor everything so there should be no issues with fueling or ignition

On the street, mid range RPM and high load pulls are also recommended. Start around
2500 RPM and with 50-75% throttle take it up to 5000-6000. 10-15 good pulls like this
should seat the rings properly. After that, as long as the tune up is good, go ahead and
beat on it like it was intended.

Privacy Policy

Q: Communications

If you select during the order process or at other times when you submit personally identifiable information, the information you provide may be used by Modular Head Shop to create and deliver to you our newsletters, surveys or other communications containing product information. If you prefer not to receive such Communications, please do not select the ‘Please inform me option’. If you do select this option and later decide that you would no longer like to receive these communications, please use the features made available to you.

Q: Brochure Mailing List

If you have requested a Modular Head Shop brochure, all information is kept completely confidential and is not shared with any third parties. We may, on occasion, send you an updated catalog or brochure. If you do not wish to receive any mail from Modular Head Shop, please contact us via email at . Include your name and mailing address and email address. You will be removed from any future mailings.

Q: Communications to Serve You

If you have elected to provide us with your contact information, e.g., by registering at the Site, emailing our Customer Service department or placing an order, we may provide you with service related announcements concerning the Site or contact you regarding your customer service requests or your order. For example, all registered users will receive an email to confirm their order. These types of communications are necessary to serve you, respond to your concerns and to provide the high level of customer service that Modular Head Shop offers its customers.

Disclosure of Personally Identifiable Information

We will never provide your personally identifiable information to third parties for their use in marketing their products or services to you without your consent. Modular Head Shop takes great pride in having you as a customer and we will ensure your privacy as a customer. Modular Head Shop does not sell or exchange names or any other information about our customers with third parties.

Q: Fraud Protection and Compliance with Law

We may disclose any information, including personally identifiable information, we deem necessary, in our sole discretion, to comply with any applicable law, regulation, legal process or governmental request. We may also exchange information, including personally identifiable information, with other companies and organizations for credit fraud protection and risk reduction.

Q: Service Providers

We may retain other companies and individuals to perform functions consistent with our Privacy Policy on our behalf. Examples include customer support specialists, web hosting companies, fulfillment companies (e.g., companies that fill product orders or coordinate mailings), data analysis firms and email service providers. Such third parties may be provided with access to personally identifiable information needed to perform their functions, but may not use such information for any other purpose.

Q: Special Events

If you elect to participate in any promotions, sweepstakes, surveys, questionnaires or other events during your visit to our Site, the rules or terms and conditions for those events may indicate that your personally identifiable information will be shared with third parties. By choosing to participate and submitting your personally identifiable information with respect to such events, you consent to disclosure of your personally identifiable information to such third parties.

Q: Business Transfers

As we continue to develop our business, we might sell certain of our assets. In such transactions, user information, including personally identifiable information, generally is one of the transferred business assets, and by submitting your personal information on the Site you agree that your data may be transferred to such parties in these circumstances.

Q: Cookies, IP Addresses, Pixel Tags and Tracking Technology

We may place a "cookie" on your computer's hard drive so we can recognize you as a return user and personalize your experience. A cookie is a piece of data that enables us to track and target your preferences. The cookie will be stored on your computer's hard drive until you remove it. We may also use temporary or "session" cookies to help you shop. These cookies will expire when you place an order. You can have your browser notify you of, or automatically reject, cookies. If you reject our cookies, you may still use the Site, but you may be limited in the use of some of the features. In addition, we may use IP addresses to analyze trends, administer the Site, track traffic patterns, and gather demographic information for aggregate use, as well as in combination with your personally identifiable information for credit fraud protection and risk reduction.

Similarly, when you visit this Site or view one of our emails, we may use pixel tags (also called "clear" gifs), tracking links and/or similar technology to note some of the pages you visit on our Site and personalize your experience. We may also use pixel tags to determine what types of email your browser supports. We may use the information collected through pixel tags, tracking links and similar technology in combination with your personally identifiable information.

www.modularheadshop.com does recognize your ISP (internet service provider), however, we cannot identify you as an individual. If you make an on-line purchase we do collect information (such as sales statistics and traffic patterns) to help improve your shopping experience. We keep all information confidential.

Q: Use of Aggregate Information

We may use the information you provide in aggregate (non-personally identifiable) form for internal business purposes, such as generating statistics and developing marketing plans. We may collect, store or accumulate certain non-personally identifiable information concerning your use of the Site, such as information regarding which of our pages are most popular. We may share or transfer non-personally identifiable information with or to our affiliates, licensees and partners.

Q: Links

This Privacy Policy applies only to the information collected on this Site. Our Site may contain links to or from other websites and you should be aware that we are not responsible for the privacy practices of other websites. We encourage you to read the privacy policies of other websites linked to the Site.

Q: Security

Modular Head Shop seeks to protect the security of your personal information both online and offline. All credit card transactions are secure. Every on-line order is encrypted and sent through a secure server, using SSL technology to prevent information from being intercepted.

Confidential information such as your credit card number will be used only to fulfill your order. To protect your privacy, we will ask you to enter your credit card number and expiration date each time you place an order with us. This way, even if someone else accesses the account information stored on your computer, they won't be able to use your credit card.

E-mail is not encrypted and is not a secure means to transmit credit card numbers. We will only display the last 4 digits of your credit card number on your account.

Q: Notification of Policy Changes

Modular Head Shop reserves the right to revise this Privacy Policy in the future by posting changes at this location and we may make changes at any time without notification.

Q: Updating Personal Information

If you are a registered member at Modular Head Shop, you can change your personal information at any time by updating your information at check-out.

Q: Contacting Us

We welcome your comments and questions about privacy. Please send email to modheadshop@gmail.com.

We are confident that your visit to Modular Head Shop is secure and safe. However, you may choose to call us directly to place your order over the telephone. Please call Customer Service toll free at 407-564-8069.

Shipping & Returns

Q: What shipping options are available?

Online orders will be shipped based on the customers choice at checkout. We (do not) ship to P.O. boxes. Please contact us if you are interested in an expedited shipping on your order.

Q: Do you ship outside of the USA?

Yes, we ship anywhere in the world. You will need to contact us via email for a shipping quote.

Q: Do you ship to Alaska and Hawaii?

Yes, we will gladly ship to both Alaska and Hawaii. Please contact us for a shipping quote.

Q: What could cause a shipping delay?

Shipping delay can occur when the wrong address or zip code is submitted for the shipping address. If the shipping company can not deliver the package we will contact you via phone or email.

During the holiday season shipping delivery may vary.

Q: Is there a cost on returns?

If an item needs to be returned the shipping fees are the customer's responsibility.

Amount of refund will be based on the purchase price of your product.