Which Engine is Right for Me?

To help you navigate our engine buying process, we’ve broken down the key differences between long-block and short-block engine assemblies.

This guide will help you determine which engine is right for you.

Short Block EnginesLong Block Engines

What is a Short Block?

A short block engine assembly includes the core components of the engine's lower half, which are crucial for its basic operation. Typically, a short block includes:

  • Engine block
  • Crankshaft
  • Connecting rods
  • Pistons
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Why Choose A Short Block?

  • Customization Flexibility

    If you already have functional cylinder heads and other top-end components, or want the flexibility to select and install specific parts, a short block is the ideal choice.

  • Budget-Friendly

    Short blocks generally have a lower initial cost than long blocks, making them a cost-effective option for a phased upgrade or tighter budget.

  • Upgrading Existing Engines

    If your current engine has a damaged lower end, a short block can be a perfect solution to restore and enhance performance without a complete engine replacement.

Advantages of Short Blocks:

✓ Precision-engineered foundation for performance builds.

✓ Allows for personalized top-end component selection.

✓ Cost-effective solution for engine upgrades and repairs.

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What is a Long Block?

A long-block engine assembly includes all the components found in a short block, plus the cylinder head and valvetrain components. This makes it a more comprehensive engine package. Typically, a long block includes:

  • Everything in a short block
  • Cylinder head(s)
  • Camshaft(s)
  • Valves and springs
  • Timing components
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Why Choose A Long Block?

  • Complete Engine Solution

    Long blocks are a more complete and ready-to-install engine. It includes all the critical components, ensuring compatibility and optimal performance.

  • Optimized Performance

    With a long block, you benefit from the balanced and precisely matched components engineered and tested to work together seamlessly. This ensures reliability right out of the box.

  • Direct Replacement

    Long blocks are ideal for direct engine swaps. They offer a hassle-free solution if you need a fully assembled engine ready to drop into your vehicle.

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Advantages of mountune Long Blocks:

✓ Completely assembled, ready-to-install engine solution.

✓ Engineered for immediate and optimal performance.

✓ Includes all critical components for reliability and ease of installation.

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MOUNTUNE

N1 Series Long Blocks

From deburring and clearancing to inspection and component selection, every engine undergoes a meticulous process to ensure the highest level of quality and performance.

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Mountune

MRX Long Block Engines

Our MRX series features everything you'd expect from a crate engine ready to install out of the box, plus an upgraded cylinder head.

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Ford

Ford Performance Crate Engines

The Ford Performance engine team has put together a comprehensive range of high-performance engines that have been engineered to the highest standards.

Shop FP Engines

Frequently Asked Questions:

What is a Short Block Engine?

A short block engine includes the essential components of the engine’s lower half, which are crucial for basic operation. Typically, a short block includes:

  • Engine block
  • Crankshaft
  • Connecting rods
  • Pistons

When should I choose a short block?

  • Customization Flexibility: Ideal if you want to select and install specific cylinder heads and other top-end components to meet your unique performance requirements.
  • Budget-Friendly: Lower initial cost, suitable for phased upgrades or budget-conscious builds.
  • Upgrading Existing Engines: Perfect for restoring and enhancing performance when your current engine's lower end is damaged, but the top end components are still good.

What are the advantages of mountune short blocks?

  • Precision-engineered foundation for custom builds.
  • Allows for personalized top-end component selection.
  • Cost-effective solution for engine upgrades and repairs.
  • Ideal for motorsport applications requiring specific engine configurations.

What is a Long Block Engine?

A long block engine includes all the components found in a short block, plus the cylinder head and valvetrain components. Typically, a long block includes:

  • Everything in a short block
  • Cylinder head(s)
  • Camshaft(s)
  • Valves and springs
  • Timing components

When should I choose a long block?

  • Complete Engine Solution: Perfect if you need a comprehensive, ready-to-install engine with all critical components included.
  • Direct Replacement: Ideal for hassle-free, fully assembled engine replacements.
  • Optimized Performance: Provides balanced, precisely matched components for maximum performance and reliability right out of the box.

What are the advantages of mountune long blocks?

  • Comprehensive, ready-to-install engine solution.
  • Engineered for immediate and optimal performance.
  • Includes all critical components for reliability and ease of installation.
  • Tailored for motorsport applications requiring top-tier performance.

How much HP do mountune engines make?

Horsepower is the result of a complex interplay between various factors, primarily the combination of fuel, air, and spark within the engine. Learn more about how horsepower is produced by clicking here.

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