Free shipping on orders over $150 · Ships same day before 3 pm
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Send an order request. We confirm stock, shipping and payment by email.

Frequently asked questions

How do I place an order?

Add parts to your cart and send an order request with your delivery details. We reply by email to confirm stock, shipping and payment. Nothing is charged until you approve the confirmed total.

How much does shipping cost?

Orders over $150 ship free. For smaller orders, and for oversized items such as complete engines and automobiles, we quote shipping in the confirmation email before you pay.

When will my order ship?

In-stock parts ship the same business day when your order is confirmed before 3 pm. Parts marked "Available to order" usually ship within one to three weeks, and we give you a date when we confirm.

How do I track my order?

Open Track your order, enter your order reference (it starts with MBP-) and the email you ordered with. You will see the current status, every update so far and a map of where your parcel is.

Will this part fit my car?

Each product page lists the engines and applications the part is made for. If you are unsure, send us your year, make, model and engine through the contact page and we will check fitment before you order.

Can I return a part?

Yes. Unused parts in their original packaging can be returned within 30 days of delivery. Start a return through the contact page so we can give you a return number first.

What warranty do your parts have?

Parts are covered for 12 months from delivery against defects in materials and workmanship. Outlet and clearance parts carry the same cover.

Do you offer a military or first responder discount?

Yes. Verified service members, veterans, police, fire and ambulance crews save 10% on every order once we have checked their ID.

Do you sell to workshops and dealers?

Yes. Workshops, race teams and parts stores can apply for trade pricing on the dealers and wholesale page.

Which payment methods do you accept?

We list the payment options available for your country in the confirmation email. You only pay once you have approved the confirmed total.

Still stuck? Contact us. You can also read the shipping policy, returns policy and warranty in full.

More from Help

Performance and aftermarket parts

Performance parts, shipped today.

0 parts for Chevy, Ford, GM LS and Mopar builds, from gaskets to crate engines. Free shipping on orders over $150.

Free shipping over $150Same-day dispatch before 3 pmTrack every order onlineMilitary & first-responder pricing

Today's deals

Special pricing, while stock lasts.

Shop by department

Everything between the bumpers.

Eight departments, with fitment notes on every part and a part number you can reorder by.

The store

On the shelf right now.

Best sellers, special pricing, clearance and outlet stock. Everything marked in stock ships today.

Full catalog

Browse every department.

0 parts across eight departments. Pick a category, filter by engine, sort by price, and open any part for a closer look.

Assembly · Complete systems

Matched on our bench. Ready to fit.

Crate engines, top end kits, supercharger kits and ignition systems assembled and checked before they ship, so every component arrives already working together.

ROTOR A 3-LOBE INJECTOR HAT DRIVE CASE 248 MM
Fig. 1 · 6-71 roots blower9.5 psi at 6,000 rpm

Merchandise

Gear for the shop floor.

Motor Base apparel, drinkware, signage and gifts, in the same black, red and gold as the store.

Rewards

Every dollar builds your status.

One point per dollar, double and triple on selected parts, across seven tiers from Red to Black. Once you reach a tier it holds for a full year, and Gold and above get a dedicated account manager.

$3,400
3,400Points
$2,600To next tier
Yellow

Test drive game

Pick a car. Drive the city.

Take a supercharged muscle coupe, a big-block classic, a V8 pickup, a turbo rally sedan or our concept car for a spin around a 3D city. Every car has its own engine sound, gearing and grip, and you shift with a real clutch.

Optional and free. The game only loads when you press play. Open it full screen.

Complete automobiles, built to order

Tools & resources

Measure twice. Order once.

Install guides, catalogs and engine calculators. The calculators are pre-filled with a typical 350 small block.

Compression ratio

9.80Ratio : 1
355Cubic inches
5.8Litres

Pump-gas friendly on 91 octane.

Trap-speed power

373Wheel hp
12.2Est. ¼-mile, s

Uses the classic trap-speed formula. A ballpark figure, not a dyno sheet.