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New 5.7L, 350 CID Pre-Vortec Marine Base Engine. Directly replaces years 1987-1995. Mercruiser, Volvo Penta, Marine Power, Indmar Engines.

100% factory new 5.7L, 350 CID Pre-Vortec marine engine. Used in marine and industrial engine applications between the years 1987-1995. This engine is the Pre-Vortec engine using a mechanical fuel pump, 12 bolt intake manifold, and hydraulic flat tappet camshaft and lifters. This is a completely "sealed" unit including all engine tinware. This will replace 5.7L GM engines used in Mercruiser, Volvo Penta, Marine Power, and other marine and industrial engine applications. This part number directly replaces those versions with a 12-bolt intake manifold, mechanical fuel pump, center valve cover bolts, and 1 piece rear main seal.

There are other part numbers that will replace older and newer 5.7L engines. Please view our eBay store to view those engines if this one is not the correct fit.

Reverse Rotation (RH) Available. Please message us for pricing.

This base engine includes:
  • assembled longblock (engine block, cylinder head, all internals)
  • oil pan
  • valve covers (center bolt)
  • steel timing cover
  • harmonic balancer
When calling, reference part number: ENG-5440NMSR

Please note the lead time specified in in "shipping and payments" tab under "handling time". Message to clarify, if necessary.


About New Marine Engines 4 Less Units

Beginning in 2015, GM has began to discontinue many of their marine engines. This includes the 3.0L and 4.3L in 2015, the 5.0L in 2016, and the 7.4L and 8.2L in 2022. To date (July 2023), GM only produces the Vortec 5.7L marine engine. Because of this, we began producing our own new units in 2021. These new units use DART’s performance engine blocks and are machined, assembled and tested in our facility. They are built to GM factory specifications and there will be no issues to use these units in place of GM MPI or TBI units.


Similarly, in 2023 Mercruiser’s “Quicksilver” branded engines will begin to use new DART blocks as well, as GM has discontinued and stopped providing new engines to Mercruiser.


The benefit of using our in house produced units using DART engine blocks include:

  • Priority main oiling system feeds main bearings first. See Figure 1.

  • Siamese cylinder bores with extra thick walls resist cracking and improve ring seal for more power (minimum .275” thick with 4.185” bore).

  • Open lifter valley improves oil return to pan.

  • Blind head bolt holes don’t go through to water jacket.

  • Billet steel 4-bolt main bearing caps on all 5 mains.


Figure 1: Priority main oiling primes the main bearings first and then to the lifters and top end instead of top down oil priming in OEM blocks allowing for peak performance at high temperatures.



Casting Number Information:

Cylinder Block Casting No’s:

548, 526, 148, 880, 638

Cylinder Head Casting No’s:

191, 193


Cross reference guide:
Mercruiser883944R5, 807447R5
Volvo Penta 1987-1995 year engines
 
 
Displacement: 350 CID/ 5.7L
Cylinders: 90 Degree V8 Cylinder
Compression Ratio: 9.0:1
Valve Configuration: Overhead valves (2 valves per cylinder)
Valve Lifters: Hydraulic Flat Tappet
Bore x Stroke: 4.00” x 3.48” (101.60 x 88.39 mm)
Main Bearings: 4 Bolt Cast Iron
Firing Order: 1 – 8 – 4 – 3 – 6 – 5 – 7 – 2
Oil Pan Capacity: 5.5 Quarts (W/O Filter)
Oil Type: SAE 25W40 Pennzoil Marine
Paint Protectant: High Gloss Black / Superior Corrosion  Res.
Horsepower: 260 H.P. @ 4800 RPM
Fuel Pump:Mechanical
Warranty: 1 Year Limited
 
 
 
Marine Exhaust Components Remanufactured Marine Engines Marine Cylinder Heads Marine Intake Manifolds
 
The standard freight charge listed in the ad, should there be a flat rate or "free" option is for shipping to the continental USA only. Shipping to Alaska, Hawaii, Puerto Rico, Guam, and international destinations will incur additional fees. Please contact us before purchasing the item if you are located outside of the continental USA so that we can first quote shipping options.

Domestic

Engine Parts:
Engine parts less than 150 LBS are shipped via UPS, USPS, or FedEx. Items that have free shipping are shipped using a carrier of Center State's discretion. Parts also have expedited shipping options available such as 2-day air and overnight shipping. There is a charge for expedited shipping and we will use the carrier selecting during checkout to ship the order.

Engine parts that are shipped via UPS, USPS, or FedEx have a 3PM same day shipping cutoff for in stock parts. 

Engines or parts shipped Freight:
Engines or small parts over 150 LBS are shipped via LTL freight. Freight will be delivered on a semi truck. For items shipped freight, the standard flat rate is for shipping to a freight terminal for customer pick up or to a business location that has a dock or forklift available to unload the freight. Residential shipping with liftgate delivery or business shipping with liftgate delivery is available for an additional cost. Please contact us for the extra cost before purchasing the item. Typically, these costs are in the $75 range, however, they may vary depending on shipping location.


International

Engine Parts:
Engine parts less than 150 LBS are shipped via UPS, USPS, or FedEx. There is always a shipping charge to send items internationally. Typically, UPS International Expedited is used, however, we do offer faster options. Please message us for costs. eBay's listed costs are typically higher than the actual cost. We do not pay for any customs fees, taxes or duties that are incurred due to the importation of our product to your respective country. Please keep this in mind when purchasing an item from the USA and specifically Center State Marine Engines.


Engines or parts shipped Freight:
Engines or small parts over 150 LBS have to be sent by international freight.
  • For ocean freight we ship via Econocaribe or Shipco. These carriers will transport the freight door to port  or door to door. For door to port shipping, the freight will have to be picked up at the local port in your respective country. There will be port fees, customs fees, and duties or taxes that will be due on pickup. We do not pay for those fees. Center State Marine Engines simply pays for the cost of freight, packaging, fumigation, and insurance. We can quote ocean freight door to port or door to door.
  • For air freight we ship via commercial airline or UPS, FedEx, or DHL. These carriers will transport the freight door to airport or door to door. For door to airport shipping, the freight will have to be picked up at the local airport in your respective country. There will be airport fees, customs fees, taxes or duties that will be due on pickup. We do not pay for those fees. Center State Marine Engines simply pays for the cost of freight, packaging, fumigation, and insurance. We can quote air freight door to airport or door to door.
Please message us with your postal code or city and we will quote various shipping options for you. Please message us for a shipping quote before you buy the item.
 
 
 
Customer service is our #1 policy here at Center State Marine Engines and we want all of our customers to be happy with their purchase. We offer a 30-day return policy on all items that we sell. Some items will incur a restocking fee unless there is a fault of Center State Marine Engines.
Example of return scenarios:
  • If we send the wrong item or the item is received damaged – Center State Marine Engines will provide the correct item, or send a replacement, if damaged, at our cost.
  • If the customer orders the wrong part or changes their mind once the product is received – the customer will be responsible for the return shipping costs. Original shipping charges will not be refunded. If the item was a free shipping item, there will be a restocking fee between 10-20%, whatever amount will cover the original shipping costs incurred by Center State Marine Engines.
Engines sold by Center State Marine Engines cannot be returned once installed or run. If the engine has not been installed or run and needs to be returned, please contact us to facilitate a return via freight shipping. Original shipping charges and return shipping charges will not be refunded. Engine returns will incur an additional 15% restocking fee. Please be sure that you are ordering the correct engine to prevent the need for a return. You can contact us at any time to verify fitment. We prefer that this verification be done before the order is placed.
 
With over 35 years of experience in the marine engine industry, an engine produced by Center State Marine Engines is one that you can trust. All of our remanufactured engines are manufactured in our Ocala, Florida state of the art facility on CNC equipment.

Parts that we sell are parts used in production and are OE or OE equivalent – so they are quality that you can trust.
Items that we have on eBay are a small percentage of items that we carry. If you are in need of something that you do not see listed on our eBay site, please contact us.



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