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Summit Racing Part Number: TFS-2500100

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Damper Spring Included	Yes
Inside Diameter of Inner Spring (in)	0.803 in.
Inside Diameter of Outer Spring (in)	1.075 in.
Lock Groove Quantity	1-groove
Lock Material	Steel
Lock Style	7 degree
Locks Included	Yes
Notes	Designed to upgrade factory Ford 289-351W cast iron cylinder heads. Kit also includes valve spring shims.
Number of Springs Per Valve	Single
Outside Diameter of Outer Spring (in)	1.470 in.
Quantity	Sold as a kit.
Retainer Material	Steel
Retainers Included	Yes
Spring Rate (lbs/in)	358 lbs./in.
Valve Guide Diameter (in)	0.525 in.
Valve Spring Style	Standard
Valve Springs Coated	No
Valve Stem Diameter (in)	0.341 in.
Valve Stem Diameter (mm)	8.66mm
Valve Stem Seals Included	Yes

Vehicle Fitment

Please see the "Compatibility" link at the top of the listing if available.*

*Fitment information may not be available for all products and those without fitment will not have a Compatibility link. Please reach out to us via the eBay member-to-member messaging system prior to placing your order to verify fitment.
IMPORTANT - Please be sure to view the "Notes" option for more details if it is available.

Shipping

Please see the "Shipping and Payment" tab or the top of the listing for shipping costs.
We use UPS and Fedex for most orders. We are unable to guarantee a specific carrier.
We do not ship to APO/FPO or Post Office box addresses on eBay.
In-stock items can ship from four locations - Georgia, Nevada, Ohio, or Texas. To avoid delays, we ship the order from your nearest stocking warehouse. This means orders may arrive in multiple boxes or at different times.

We accept all forms of payment permitted within the Ebay Managed Payments checkout program including PayPal.
Immediate Payment is required on all listings - please use the eBay cart for multiple purchases.
All orders ship with an itemized invoice. We are unable to send an order without an invoice.
We are unable to accept Summit Racing Gift Certificates, Discount Codes, or Summit Bucks on eBay. These are redeemable only on our website.

Sales Tax

We collect and remit sales tax based on state and local requirements.
Tax laws for online sales are changing due to the recent Supreme Court Decsions. We are making every reasonable effort to comply with the law, whenever it applies.
We collect sales tax for all eBay orders within the following states: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Washington DC, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Nebraska, Nevada, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming. Additional states may apply as new states laws continue to be implemented.
Tax collection ammounts are visible by entering your ZIP code into eBay's shipping and payments calculator prior to your final checkout.
Ebay does manage tax collection percentages on some states.

If this item is noted as earning Summit Bucks, a Summit Bucks Certificate will be mailed to you approximately 2 weeks after your item has shipped. Summit Bucks are redeemable on your next purchase directly through Summit Racing only. Summit Bucks are not redeemable through eBay.

We offer a 60-Day Handshake Guarantee. Items may be returned within 60-days of purchase for a refund or exchange, if in new and unused condition.