S&S Super Stock heads Intended for larger displacement engines, S&S 89cc heads have a whopping 264cfm flow rate (compared to 182cfm for stock H-D® heads), larger valves and .640 inch lift valve springs.

2006-up big twin models

• Stock and 3-7/8 inch bore
• Heads can be decked up to .060 inch to increase compression
• 2.000 inch intake and 1.605 inch exhaust valves
• S&S .640 inch lift valve springs
• Must use S&S valve cover gasket part #90-4124 with stock rocker covers
• Wrinkle black powdercoat finish

 THIS IS A FILE PICTURE

PLEASE NOTE IF YOU ARE PLANNING TO PICK ITEMS UP AT OUR RETAIL LOCATION YOU MUST BRING A COPY OF THE AUCTION IN ORDER FOR US TO HONOR THE EBAY PRICE.

Here at Eastern Performance Cycles we look forward to helping you with any questions or concerns during your purchase.  Please feel free to contact us directly by phone or email.

Phone: 410-451-5181

Address: 1318 Defense Hwy Gambrills MD 21054

Hours: Mon- 8am to 5pm / Tues-Fri 8am to 5:00 pm EST

Tracking Numbers will be given during business hours listed above

Any item that needs to be returned must first receive a RMA number from our Returns Dept.  All items to be returned must be in new condition and uninstalled.  Warranty does not cover any return shipping charges.Any item returned is subject to restocking and or original shipping fees.

Please note that installed items will not be permited to be returned.

Shipping is free to the lower 48 United States.  Canada, Alaska, Hawaii, and Puerto Rico are not part of the lower 48 states and will need to be invoiced for shipping.

Most items ship the same day payment is received if payment is received before 2pm EST otherwise the item will ship the following business day.  Due to UPS shipping items will not be shipped during holidays observed by UPS.

If an item is out of stock or oversold the customer will be notified of the date that the item will be back in stock.

International customers and customers located in Hawaii or Alaska will be invoiced for additional shipping charges.  Some items will be sent via USPS and others via UPS.  Shipping method is determined by Eastern Performance customer service team for the best shipping price with the safe arrival of the package in mind.

International Customs fees and taxes are paid by the receiver and Eastern Performance will not be able to modify the listed value of the item to avoid these fees.  Please contact your local government for the cost of these fees.

Items needed to be returned will need to have a RMA number issued from Eastern Performance Cycles' Returns Dept.  All items must be in new condition and uninstalled.  Please call us directly for any RMA numbers.  Warranty does not cover any return shipping.