- Shipping costs and lead times vary
- Upgraded version of Ford Performance M-6049-M52A 5.2L cylinder head
- Production 2021 GT500 RH cylinder head
- Improved high-performance 5.2L head castings provide added strength and increased size of central cooling passages, to support higher horsepower engine builds
- Fully CNC ported intake ports, exhaust ports and combustion chamber
- Larger port sizing than the 2015-2017 5.0L Coyote cylinder heads
- 38.3mm intake valve and 32.5mm exhaust valve
- 2015-2017 5.0L Coyote valve sizes are 37.3mm intake, 31.8mm exhaust
- New valvetrain geometry allows for higher valve lift
- Lightweight hollow-stem intake valves and sodium-filled exhaust valves
- Stiffer exhaust valve springs
- Upgraded valve guides
- Upgraded exhaust valve seat
- Loaded head assembly minus camshafts, rocker arms and lash adjusters
- To use on 5.0L Coyote requires unique camshaft due to valvetrain geometry, see M-6550-M52 or M-6550-M52A
- Requires 5.2L rocker arms and lash adjusters, see M-6564-M52
- Requires M-6067-M52B head changing kit
- Installation of 5.2L heads on 5.0L engine requires piston modification for proper piston to valve clearance
- For LH cylinder head see M-6050-M52B
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.
