Manufacturer: ARP
Part Number: 147-3901
Condition: New
Product Description:
HIGH PERFORMANCE SERIES
High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 psi (which is 15% stronger than Grade 8) and kits come complete with hardened parallel-ground washers.
PROFESSIONAL SERIES
All Pro Series bolts are cold-forged to ensure molecular integrity, heat-treated prior to thread rolling and machining, and are rated nominally at 200,000 psi. ARP Pro Series head bolt kits are application specific – designed for use with typically competition only components. These fasteners deliver superior strength and meet the ARP “ZERO defect – ZERO failure" quality standard. Hardened and parallel-ground washers are included with each kit to ensure even load distribution and accurate torque readings. All Pro Series head bolts have a reduced wrenching hex or 12-point head and wide area flange to eliminate the need for valve train removal for cylinder head retorquing and permits the use of larger diameter valve springs. Most applications have undercut short bolts that can help eliminate head gasket failures through providing more “stretch" to compensate for the additional compression of gaskets.
Additional Information:
None
Guaranteed Fitments:
Please check the compatibility chart to verify if this part fits your vehicle. If the compatibility chart is unavailable, visit ARP's website or do your own research to confirm. If you are unsure whether this part will fit your vehicle, please contact us before purchasing.
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SPARKTEC MOTORSPORTS EBAY STORE POLICIES
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Shipping:
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Delivery Time:
Once your order ships, please allow an additional 1-5 business days for delivery. Tracking information will be provided to you within 24 hours of shipping out. Because our products ship from warehouses and manufacturers across the US, exact shipping method and times will vary by item.
Customer Service:
To contact us with questions/comments, please e-mail us using the "Contact seller" link. Most e-mails are answered within 24 hours, including weekends and holidays.
Returns:
Sparktec Motorsports' eBay Store allows returns of any item, in new and unused condition with original packaging, within 30-days of receiving the item for a refund or exchange. Absolutely NO returns or exchanges allowed on products that have been used, installed, mounted, or missing components. All non-defective returns are subject to a 20% restocking fee. All returns must be accompanied by a Return Merchandise Authorization (RMA) number which can be obtained by contacting us. Any products returned without a Return Merchandise Authorization (RMA) number will be refused. Please contact us in the event you're not satisfied with your purchase as we are more than happy to work with you to ensure a positive experience.
