Fluidampr Harmonic Damper External Balance For Ford 289ci/302ci/351ci/400ci

Item Description
The Fluidampr harmonic Damper is engineered for Ford small and big block V8 engines, including 289, 302, 351, and 400ci models. With a 28oz external balance, this damper reduces crankshaft vibrations, protecting internal engine components while improving overall smoothness and performance. Ideal for restoration projects, performance builds, and classic Ford engines, it ensures reliable and long-lasting operation under demanding conditions.

Constructed from high-strength steel with a black zinc finish, this Fluidampr Damper provides exceptional corrosion resistance and durability. Engraved 2-degree increment timing marks from 50 BTDC to 10 ATDC allow precise engine timing adjustments. The Damper features a standard 4-bolt Ford pulley pattern, with optional pulley spacer #717656 recommended for certain 1975-later engines, ensuring proper installation. Certified SFI 18.1, it meets high safety and performance standards for racing and street applications.

Features
Reduces harmful crankshaft vibration for improved engine longevity and performance
28oz external balance supports smooth operation on Ford 289-400ci V8 engines
High-strength steel construction ensures long-lasting durability and reliability
Black zinc finish resists corrosion while providing a clean, professional look
Engraved 2-degree increment timing marks allow precise tuning adjustments
Standard 4-bolt Ford pulley pattern for compatibility with most stock setups
Optional pulley spacer (#717656) recommended for some 1975-later engines
SFI 18.1 certified for safety and performance in street or racing applications

Specifications:
  • Brand: Fluidampr
  • Bore Diameter: 1.3745"
  • Outside Diameter: 6-5/8"
  • Length: 3.500"
  • Material: Steel
  • Finish: Black Zinc
  • Engine Balance: External (28oz)
  • Degree Marking Range: 50 BTDC to 10 ATDC in 2-degree increments
  • Degree Markings: Engraved
  • Keyway: Single (3/16")
  • Pulley Bolt Pattern: 4 bolt standard Ford pattern
  • Mounting Hardware Included: No
  • Safety Rating: SFI 18.1

Included:
  • (1) Fluidampr Harmonic Damper

Fitment:
  • Ford 289ci, 302ci, 351ci, 400ci V8 Engines

Notes:
  • Pulley spacer (#717656) may be required on some 1975-later engines
  • Custom pulleys may be required for 1969-earlier engine applications

About Us

Rudy's Performance Parts was founded in 2008 and prides itself in being the industry leader in automotive performance and accessories. Rudy's carries a wide variety of performance, suspension, exterior and interior upgrades! Whether you're looking for a minor boost in performance, all-out drag racing and sled pulling power or a suspension upgrade to clear bigger wheels and tires, Rudy's has you covered! Known for the best customer service and pricing in the industry, there is no question that you've found your one stop shop for all of your automotive upgrades!

Payment

Rudy's Performance Parts accepts PayPal, Visa, MasterCard, Discover and American Express as forms of payment.

Shipping

All orders placed Monday-Friday before 2:00 PM EST will be shipped the same day via UPS Ground, FedEx or USPS as long as the product is not on back-order. Tracking information will be automatically uploaded to eBay when the item has shipped. The address on your PayPal account MUST be verified. Additional shipping charges may apply to Alaska, Hawaii, Puerto Rico and Canada. Please message us on eBay if you need to inquire about expedited shipping.


Rudy's Performance Parts does NOT ship to international or PO Box addresses. Should you purchase an item from Rudy's Performance Parts using an international or PO Box address, Rudy's Performance Parts reserves the right to cancel and fully refund your order.


ALL programmers bought from Rudy's Performance Parts will be sent with signature confirmation and any purchases over $500.00 may also be sent with signature confirmation. Upon delivery, if no one is available to sign for the product, the shipper (UPS, FedEx, USPS, etc.) may attempt to deliver the merchandise another day OR hold it at a local hub for customer pickup.


Rudy's Performance Parts is NOT responsible for any packages that are damaged from shipping. ALL packages should be inspected for damage at the time of delivery. If you receive a damaged package, Rudy's Performance Parts will open a damage claim with the shipper and will refund or replace your product once the claim has been complete.


Rudy's Performance Parts ships products from multiple warehouses across the country in order to get your products to you the quickest way possible. Your order will ship from the nearest warehouse that has the product in stock. Please note that your order may come in multiple shipments/packages and your shipments/packages may arrive at different times.

Feedback

Here at Rudy's Performance Parts we are committed to customer satisfaction. If you are satisfied with your order, please leave us 100% positive feedback as we will do the same for you. If for any reason you are not satisfied with your order or have any problems at all, PLEASE call or email us and we will do everything we can to resolve the issue. We value your business and we are not satisfied until you are.

Returns

All of our parts and accessories are returnable and refundable. You MUST contact us within 30 days of the shipment date in order for us to accept a return. The item in which you are returning MUST be unused, uninstalled, in the original condition, and in the original packaging. To begin the return process you MUST contact us to obtain an RA number and RA form (if applicable) prior to sending the item back. Returns will be jeopardized at the customer?s expense if they are sent back without a return authorization number. All returned items are subject to a restocking fee of up to 20%. Labor, installation, surcharges or any other applicable fees from the original purchase are non-refundable. If you are returning an item due to an error caused by Rudy's Performance Parts or its business partners (i.e., damaged or defective items, incorrect part shipped, etc.), we will cover all freight charges on the replacement items. We will not be able to send out a replacement part without payment. You are welcome to pay for a replacement item and then receive a refund when the original item is received back, otherwise, we won't be able to send a replacement until the original item is back. If you are sending an item back, we recommend using a service with tracking and signature confirmation. Refunds will be credited back using the method you used to initially pay for the item less any applicable restocking fees. Refunds will be credited within 7-10 business days after the item has been received back to our warehouse and inspected. If you have any questions or concerns regarding the return of an item please feel free to contact our Returns Department through eBay.
Rudy's Performance Parts was founded in 2008 and prides itself in being the industry leader in automotive performance and accessories. Rudy's carries a wide variety of performance, suspension, exterior and interior upgrades! Whether you're looking for a minor boost in performance, all-out drag racing and sled pulling power or a suspension upgrade to clear bigger wheels and tires, Rudy's has you covered! Known for the best customer service and pricing in the industry, there is no question that you've found your one stop shop for all of your automotive upgrades!
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