Subaru Performance Specialists

Built to boost.
Engineered to last.

Hand-assembled short blocks and long blocks built around the drivers who push them. From daily-reliable rebuilds to 950-horsepower competition motors, every build gets the same obsessive attention to detail.

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2021Est.
950+Max HP
5★Rated
EJ25 Specialists FA20DIT Performance Builds Closed Deck Conversions Manley Forged Internals King Race Bearings Central Texas Custom Builds Welcome
Inside BoostHouse MotorWorks shop Est. 2021
About The Shop

Purpose-built power, assembled by hand.

BoostHouse MotorWorks was founded on a simple standard: every motor leaving our shop should outperform, outlast, and out-engineer whatever the customer drove in with. We specialize in Subaru EJ25 and FA20DIT platforms, with packages ranging from OEM-spec rebuilds to closed-deck, forged-internal competition blocks.

No shortcuts. No upsells. Just a team of experienced builders who care about the motor as much as you do.

Our Story
What We Build

Performance engine work, done right the first time.

From stock-replacement builds to high-horsepower competition motors, we handle every step in-house. Teardown, machining coordination, assembly, and dyno-ready delivery.

★

Short Block Builds

Balanced, blueprinted short blocks assembled to your power target. OEM replacement through 950hp competition builds.

EJ25 · FA20DIT · Custom
◆

Long Block Assembly

Complete rotating assemblies with heads, cams, and timing components spec'd to your setup. Turnkey, ready to install.

Built To Order
▲

Closed Deck Conversions

Open-deck to closed-deck conversions for high-boost reliability. Pressed sleeves, proper torque plate honing, and leak-down verified.

High Boost Ready
2021
Established
950+
Max Horsepower
2
Platforms Mastered
100%
Built In-House
EJ25 Short Block Packages

From daily-driven to dyno-ready.

Five tiers built around how hard you plan to push it. All packages use upgraded bearings at minimum. Step up from there.

OEM Block

$2,300.99
~300 HP

OEM case halves with OEM rods and pistons. Upgrade bearings included. The reliable rebuild.

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Stage 1

$2,900.99
~450 HP

OEM case halves with OEM STI rods, Manley forged pistons, and King race bearings.

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Stage 2

$3,500.99
~550 HP

OEM case halves with Manley H-Beam rods, Manley forged pistons, and King race bearings.

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Stage 3

$4,200.99
~750 HP

Closed deck case halves with Manley H-Tuff rods, Manley forged pistons, and King race bearings.

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Stage 4

$5,200.99
~950 HP

Closed deck case halves with Manley Turbo Tuff rods, Manley Extreme Duty forged pistons, and King race bearings.

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FA20DIT Short Block Packages

WRX power. Properly built.

Three tiers for the FA20DIT platform. Forged internals standard from Stage 1 up, closed deck at Stage 2.

OEM Block

$2,600.99
~450 HP

OEM case halves with OEM rods and pistons. Upgraded bearings included.

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Stage 1

$4,900.99
~600 HP

OEM case halves with H-Beam forged rods, Manley forged pistons, and King race bearings.

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Stage 2

$6,000.99
~850 HP

Closed deck case halves with Manley Turbo Tuff rods, Manley Extreme Duty forged pistons, and King race bearings.

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Need something custom? Long blocks, non-Subaru platforms, or a setup outside these tiers? Reach out. We build to the spec, not the brochure.
The Work

Builds out of the shop.

BoostHouse engine build
Short block assembly
Engine teardown
Piston and rod assembly
Shop floor work
Finished build
Why BoostHouse

The details are the difference.

A motor is only as good as the hands that assembled it. Every block we ship gets the same checks, the same measurements, and the same patience, whether it's a 300hp rebuild or a 950hp monster.

  • Torque-plate honed case halves
  • Blueprinted bearing clearances
  • Balanced rotating assemblies
  • Every build leak-down verified
  • Clear communication, start to finish
More About Us
Engine build detail
Ready When You Are

Let's talk about your build.

Whether you have a target horsepower, a tight budget, or just a hunch that your current setup deserves better, we'll walk you through the options.

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