DART's Pro1 Mercury Racing 525 cylinder head comes standard with an exclusive chromate finish that inhibits corrosion and extends the life of the head in marine applications. Assembled heads also include inconel exhaust valves to withstand the conditions typical of marine performance engines.
The DART Pro1 Mercury Racing 525 upgrade cylinder head makes significant improvements to the performance capabilities of the original Merc 525 heads, and adds enhanced durability features as well.
Specifications:
Port Volume - 345 cc
Intake/Exhaust Valves - 2.300/1.880
Spring Diameter (Double) - 1.550
Features:
Premium C355-T61 aerospace aluminum Exclusive chromate treatment prevents corrosion in marine engines
Assemblies include inconel exhaust valves
Precision cast ports and chambers
Multi-angle intake seats
Hardened and radiused exhaust seats
Bronze valve guides
Sold individually
We ship parts and engines worldwide! Parts orders placed before 3:30pm EST will normally be shipped same day (if the item is in stock). If you need your parts asap, UPS next day air, second day air, etc., are also available (Deadline is 3:30pm Eastern Time). Engine orders will be processed and shipped within 24-48 hours after payment-in-full is received. For special engine orders, shipping time is based on current stock and build time.
Items under 75 pounds are sent via UPS in continental USA. Items sent overseas are sent via USPS or UPS Worldwide Expedited, or air freight (depending on item weight). UPS cannot ship to P.O. Boxes.
Engine Shipping
For a shipping quote, please email sales@MichiganMotorz.com or call (248) 524-9600 begin_of_the_skype_highlighting (248) 524-9600 end_of_the_skype_highlighting with your shipping address and contact information. We use different freight carriers to find you the lowest price AND safest delivery. Some of the freight carriers we use are: R&L Freight, Con-Way Freight, Estes Express, Pilot Air, USF Holland, Forward Air, Old Dominion, Overnight Express, Watkins, and Dayton Freight. Engines can be picked up at a local shipping terminal or dropped off at your location*. Engines are packed in specially designed crates made for that engine**.
All oil & lubricating fluids are drained before they are sent out (this is required by our freight carriers). All engines & parts are packed by our shipping department. Engines are then inspected by our shipping manager before they are loaded onto a freight carrier.
*Certain restrictions apply
**All Marine Power complete engines are subject to a $150.00 non-refundable crate fee; and all MerCruiser complete engines are subject to a $300.00 refundable crate fee.
For items received as described, a refund of the final invoice price (minus shipping and handling charges and a 15% restocking fee) will be issued. Buyer is responsible for return shipping costs and for sufficiently packing and insuring returned items unless otherwise agreed upon. Refunds will not be issued for damaged merchandise. All returns must be made within 15 days of delivery to you. No refunds for electronic parts if box is opened. All returns must have a RMA # and invoice #. 15% restocking fee on any complete engine. Please call or email for a RMA #.
Returns must be shipped to:
Michigan Motorz
1800 Austin Drive
Troy MI, 48083
If parts arrive damaged in shipment, it is the customers responsibility to notify the carrier immediately and reject the damaged package. Contact Michigan Motorz of the potential damage. A claim will be filed and we will send out the identical part. If parts are damaged in shipment and the customer does not notice damage, please call Michigan Motorz LLC.
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