- Contact to get ETA before purchasing
Build BIG Modular Power. The Ford Performance 5.3L Modular Stroker short block is a great way to build modular power - from mild to wild - naturally aspirated or supercharged - 2 valve, 3 valve or 4 valve.
Ford Performance Engineers have taken care of the toughest part of building a new engine by designing a strong and durable short block that offers a wide range of power possibilities. Ford Performance uses only the best parts, starting with the BOSS Modular block, and adding a forged Eagle steel crankshaft, forged Eagle H-beam connecting rods with floating piston pins, and forged Mahle pistons. Bored and stroked to 5.3 liters, this short block is precision internal balanced and ready to be finished to your specific application.
- Engine type: 4.6L based Modular short block
- Displacement (Liters/cu in): 5.3L/323 cubic inches
- Bore x stroke (in): 3.701" bore x 3.750" stroke
- Block: Ford Performance M-6010-BOSS50 Cast Iron performance block
- Crankshaft: Eagle® 3.750-inch stroke forged steel crankshaft with 8 bolt flywheel pattern
- Connecting Rods: Eagle® 5.850-inch forged steel "H" beam rods with ARP® 2000 bolts
- Pistons: Mahle® forged aluminum pistons – with a dish that is compatible with 2, 3 or 4 valve heads
- Neutral balance rotating assembly
- Designed for 2, 3 or 4 valve cylinder head combinations (piston to valve check required depending on camshaft)
- Assembled and ready for your heads, cam, and timing set
- Note-2005-2010 Mustang 3V applications will need motor mount adapter part number M-6031-BOSS50
Shipping costs and lead times can vary, use the contact form below to confirm order cost and timeframe.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at brian@paulsautomotiveengineering.com. Please note that returns will need to be sent to the following address: 9750 Conklin Road Blue Ash, OH 45242
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at brian@paulsautomotiveengineering.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. If we do not receive notice within 7 days of receiving order, we cannot process return.
Exceptions / non-returnable items
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at brian@paulsautomotiveengineering.com.
