Description

Rotating Assembly – 505 CID – Forged Steel Crank – Forged Pistons – 4.250 in Stroke – 4.350 in Bore – 7.100 in H Beam Rods – Mopar RB-Series – Kit

Why Choose Us?



Frequently Asked Questions​

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.
We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.
We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.
Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%
Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.
Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.
We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.
You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

About EAGLE

Eagle specializes in crankshafts, connecting rods, and rotating assemblies. With a smoother surface than competitor products, Eagle components allow better oil flow for improved lubrication and reduced wear.

International Shipping

Below are estimated rates and delivery times for popular destinations; full carrier options are available at checkout.

Our dedicated team has years of experience managing international logistics and customs documentation to ensure smooth delivery from our US warehouse to your door. Please review our shipping policy and local import regulations before ordering.

Loading international estimates...

Reviews

There are no reviews yet.

Be the first to review “EAGLE BBM Rotating Assembly Balanced B21202030”

Your email address will not be published. Required fields are marked *

Recently viewed products

  • Add to wishlist
    Sale
    Placeholder
    Add to wishlist

    ALLSTAR PERFORMANCE Module Assembly 4-Wire for Ford Distributors ALL81237

    SKU: ALL81237
    Product information
    Details...
    Original price was: $208.99.Current price is: $189.99.Add to cart
    Original price was: $208.99.Current price is: $189.99.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PROFORM HEI Distributor – Chevy Inline 6 67081

    SKU: PFM67081
    Product information
    • Weight6.62 lbs
    • Dimensions16.9 × 8.2 × 7.1 in
    • Product Line

      Street/Strip

    • Trigger Style

      Magnetic

    • Advance Type

      Vacuum

    • Cap Style

      Male

    • Cap Color

      Red

    Details...
    Original price was: $285.43.Current price is: $259.48.Add to cart
    Original price was: $285.43.Current price is: $259.48.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    VENTSHADE Window Ventvisor 4Pc. 94407

    SKU: VEN94407
    Product information
    • Weight2.75 lbs
    • Dimensions47 × 12 × 2 in
    • Product Line

      Original Ventvisor

    • Application Specific

      Yes

    • Front Mounting Style

      Stick-On

    • Rear Mounting Style

      Stick-On

    • In Channel / Out Of Channel

      Out of Channel

    Details...
    Original price was: $70.00.Current price is: $62.99.Add to cart
    Original price was: $70.00.Current price is: $62.99.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WINTERS Thick Front Seal 7204T

    SKU: WIN7204T
    Product information
    • Weight0.085 lbs
    • Dimensions3.55 × 3.5 × 0.9 in
    • Material

      Rubber

    • Quantity

      Each

    • Outside Diameter

      2.633 in

    • Thickness

      0.765 in

    • Inside Diameter

      1.803 in

    Details...
    Original price was: $15.63.Current price is: $14.21.Add to cart
    Original price was: $15.63.Current price is: $14.21.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WINTERS Quick Change Gears 8534A

    SKU: WIN8534A
    Product information
    • Weight6.653 lbs
    • Dimensions9 × 5 × 2 in
    • Spline

      10.0

    • Set Number

      34A

    • Gear 1 Tooth Count

      16.0

    • Gear 2 Tooth Count

      22.0

    • 4:12 Ring And Pinion Low Ratio

      3.0

    Details...
    Original price was: $128.16.Current price is: $116.51.Add to cart
    Original price was: $128.16.Current price is: $116.51.
    Quantity Only 6 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    ZMAX Multi-Use Formula 32oz. Bottle 55-032

    SKU: ZMA55-032
    Product information
    • Weight1.85 lbs
    • Dimensions8.55 × 4.15 × 3.15 in
    • Product Line

      zMAX Multi-Use Formula

    • Quantity

      Each

    • Intended Fuel

      Diesel, Gas

    • Improve Performance

      Yes

    • Improve Fuel Mileage

      Yes

    Details...
    Original price was: $34.96.Current price is: $31.78.Add to cart
    Original price was: $34.96.Current price is: $31.78.Add to wishlist
  • Add to wishlist
    Sale
    CROWER Roller Lifters - BBC Offset 66293-16
    Add to wishlist

    CROWER Roller Lifters – BBC Offset 66293-16

    SKU: CRO66293-16
    Product information
    • Weight4.6 lbs
    • Dimensions9.4 × 3.6 × 3 in
    • Product Line

      Severe-Duty Cutaway

    • Lifter Style

      Mechanical Roller

    • Body Diameter

      0.842 in

    • Cut Away Body

      Yes

    • Link Bar Included

      Yes

    Details...
    Original price was: $879.35.Current price is: $799.41.Add to cart
    Original price was: $879.35.Current price is: $799.41.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    CHASSIS ENGINEERING Steel Firewall Kit .024 C/E8081
    Add to wishlist

    CHASSIS ENGINEERING Steel Firewall Kit .024 C/E8081

    SKU: CCE8081
    Product information
    Details...
    Original price was: $275.94.Current price is: $239.95.Read more
    Original price was: $275.94.Current price is: $239.95.Add to wishlist
  • Add to wishlist
    Sale
    CHASSIS ENGINEERING Slimline Door Latch Kit (pair) C/E4130
    Add to wishlist

    CHASSIS ENGINEERING Slimline Door Latch Kit (pair) C/E4130

    SKU: CCE4130
    Product information
    • Weight1.59 lbs
    • Dimensions8.9 × 4.45 × 2.45 in
    • Material

      Steel

    • Color

      Cadmium

    • Finish

      Plated

    • Quantity

      Pair

    • Hardware Included

      Yes

    Details...
    Original price was: $85.81.Current price is: $78.01.Add to cart
    Original price was: $85.81.Current price is: $78.01.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    ARP BBM Main Stud Kit 145-5601
    Add to wishlist

    ARP BBM Main Stud Kit 145-5601

    SKU: ARP145-5601
    Product information
    • Weight3.203 lbs
    • Dimensions8.5 × 4 × 2.5 in
    • Bolt/Stud Kit

      Stud

    • Washers Included

      Yes

    • Alloy

      8740

    • Material

      Chromoly

    • Color

      Black

    Details...
    Original price was: $81.64.Current price is: $74.22.Add to cart
    Original price was: $81.64.Current price is: $74.22.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist

    73