SKU: 6830902629

Reman Mercruiser 5.7L 350 Vortec Marine Longblock Engine

Sale price$2249.99 Regular price$2499.99
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

Reman Mercruiser 5.7L 350 Vortec Marine Longblock EngineThis Reman Mercruiser 5. 7L 350 Vortec Marine Longblock Engine (Part No. 2143MSRI 4) delivers robust 330HP performance for inboard and sterndrive applications, expertly rebuilt to OEM specifications for superior reliability and corrosion resistance. Featuring precision machined cylinder heads, a forged steel crankshaft, hardened cam bearings, high capacity oil pump, and fresh gaskets throughout, this marine longblock engine restores peak power and

This Reman Mercruiser 5.7L 350 Vortec Marine Longblock Engine (Part No. 2143MSRI-4) delivers robust 330HP performance for inboard and sterndrive applications, expertly rebuilt to OEM specifications for superior reliability and corrosion resistance. Featuring precision-machined cylinder heads, a forged steel crankshaft, hardened cam bearings, high-capacity oil pump, and fresh gaskets throughout, this marine longblock engine restores peak power and efficiency to your vessel. Ideal for boating enthusiasts seeking a cost-effective replacement without sacrificing durability, the 5.7L Vortec 350 longblock supports high-RPM operation and smooth acceleration under load. Note: this engine is sold “as is” with no warranty, offering unbeatable value for experienced installers.

Part Number: 143MSRI4.LB
Manufacturer: MERCRUISER
Weight: 400.0000 lbs

Additional Details:
Genuine OEM Parts

Please research/ensure fitment of part to your specific vehicle before purchasing. Returns because of non-fitment are accepted with a re-stocking fee, however customer is responsible for return shipping.

Shipping:
If shipping outside the contiguous 48 states is required, reach out to [email protected] to confirm shipping details.

About Us:
Custard Core Supply provides the highest quality of new, new take off, used, and core parts. We provide a variety of gas and diesel parts to our customers. Based in Dallas, TX Custard Core Supply has been in business since 1998. If you do not see a product you are looking for on our page, please reach out!


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 6830902629

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★★★★★ 5
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Color: Upgrade-apricot, Size: 16 Inch
Great quality for the price and had a lot of space and pockets, which is super convenient!
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Reviewed in the United States on May 15, 2026
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Color: Upgrade-apricot, Size: 16 Inch
Am not disappointed buying this bag it’s spacious all different type of pockets the zippers are so unique the thickness is everything to talk about . I used this for my work bag that I carry 5 days of the week with my uniform,shoes,water bottle,phone,tablet etc and it’s still leaves a lot more space the firmness and sturdiness is 100% ..So comfortable the padding on the back and the shoulder keeps you relaxed. This is value for your money , my coworker are so inlove with my backpack
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Reviewed in the United States on March 20, 2026
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Trish M
Port Orchard, US
★★★★★ 5
Very functional and spacious!
Color: Upgrade-apricot, Size: 16 Inch
I wasn’t expecting to love this backpack as much as I do, but wow —it’s everything I wanted and more. The apricot color is soft and pretty without being too “girly,” and the fabric has a nice matte texture that feels durable yet lightweight. It doesn’t have a plasticky smell at all, just a clean, new bag scent right out of the packaging. The compartments are super well thought out. I can fit my 16-inch laptop, chargers, skincare pouch, and even a change of clothes without the bag looking bulky. The back padding is surprisingly comfy, especially during long airport days, and the straps don’t dig into my shoulders. It sits well on my carry-on handle, making it the perfect travel companion. If you’re into functionality and aesthetics, this is it.
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Reviewed in the United States on July 31, 2025
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Jamie Whitten
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★★★★★ 5
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Color: A-darkgreen, Size: 16 Inch
Best computer bag! I absolutely love the color and quality. It will last a long time. Fits my 16” computer with room
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Reviewed in the United States on April 22, 2026
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Timkatmom
Lake Worth, US
★★★★★ 5
One of my Favorite Blouses!
Color: Navy Blue, Size: Large, Color: Navy Blue, Size: Large
This is the perfect top when you want to have a little dressier look than a t shirt, but you still are dressing casual or you could even dress it up because the material is just so nice. . I bought my usual size which is large. It’s a little bit loose, which I like, but not oversized. It comes down to around mid rear end . It is a half sleeve or almost a half sleeve, so it covers the batwing area. It is a high crew neck, but not uncomfortable. It basically stays wrinkle, free almost all day long and after you wash it, it is ready to wear. Speaking of washing, the garment says to put in a separate bag and wash in the machine. I did not put it in a separate bag because I didn’t read the instructions, but I had no problem afterwards. It does say hang to drive which I always do anyway, and the blouse looks brand new after several washings. The top is very well-made, very department store like looking. I purchased two of them, the navy and the white. The white is a little sheer, but not too bad that you have to wear something underneath it because it is a loose fit, it looks put together. The price was great as I got it on a deal.
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