EPOXY54 Aluminum Block Epoxy Kit — tin can and hardener bottle, non-expanding formula with thermal expansion rate matched to cast aluminum

EPOXY54, The Aluminum Block Epoxy Kit

Inline 6 / Partial Fill (oem coolant capabilities)
$159.99 $172.99
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EPOXY54 Aluminum Block Epoxy Kit — tin can and hardener bottle, non-expanding formula with thermal expansion rate matched to cast aluminum
EPOXY54, The Aluminum Block Epoxy Kit

EPOXY54, The Aluminum Block Epoxy Kit

5.0 · 42 reviews
$172.99 $159.99

Pickup available at EPOXY54

Usually ready in 24 hours

EPOXY54, The Aluminum Block Epoxy Kit

Inline 6 / Partial Fill (oem coolant capabilities)

EPOXY54

Pickup available, usually ready in 24 hours

19320 65 Avenue
214
Surrey BC V4N 0A3
Canada

(604) 809-7398
  • 21,000 psi compressive strength
  • Thermal expansion rate closely matching aluminum
  • No machining required (deck surfacing remains untouched)
  • Stock cooling properties are preserved
  • Cures in 24 hours
Key Benefits

Thermal Compatibility:

  • Engineered with a thermal expansion rate closely matching aluminum for long-term stability.
  • Unlike cement alternatives that expand and shrink during curing, our epoxy is non-expanding and non-shrinking.
  • Prevents piston clearance issues and preserves cylinder integrity.

Permanent Bonding:

  • Specifically designed to adhere permanently to aluminum.

Easy Installation:

  • Runny consistency ensures a clean, seamless application.
  • Can be applied before or after machine work without affecting dimensional accuracy.
Why Epoxy? Pros & Cons

Pros:

  • Cost-effective: Significantly cheaper than alternatives.
  • DIY-friendly: No machining required (deck surfacing remains untouched).
  • High strength: 21,000 psi compressive strength.
  • Specially formulated: Optimized for aluminum blocks.
  • Quick drying: Cures in just 24 hours.
  • Retains cooling system: Stock cooling properties are preserved.
  • Durable: Chemical-resistant to coolant, ensuring longevity.
  • Daily driveable: Suitable for both street and track use.

Cons:

  • Aesthetic simplicity: May not look as polished as aluminum.
How It Compares & Daily Drivability
  • Unlike cement or other fillers, epoxy does not deteriorate or erode over time.
  • With chemical resistance to coolant, it ensures reliability for the long haul.
  • Designed to maintain stock cooling efficiency, comparable to CSS blocks or closed deck platforms.
  • Ideal for high-performance and everyday use, with no compromise on cooling or engine longevity.
Installation (5 Steps + Video)
  1. Fill the block with a temporary solute (e.g., sugar or salt).
  2. Pour the high-temperature, 2-part epoxy to fill ¾'' of the block.
  3. Allow it to dry for 24 hours.
  4. Drill coolant passages according to the head gasket design.
  5. Dissolve the solute with water, leaving behind a durable, custom-fit epoxy layer.

Complete instructions and an installation video are included with every kit:

Proven Performance & Compatible Engines
  • The fastest aluminum-block engines in the ¼ mile rely on epoxy to reinforce their blocks, proving its capability under extreme power and stress.
  • Trusted and tested across various platforms, including VQ, Volvo, BMW, Subaru, and Top Fuel Drag Bikes.
  • Customer-Proven Results: Real-world applications demonstrate unmatched durability in high-performance environments.
  • Watch the Stress Test: Stress Test Video.

Proven Technology: Whether you're building a performance engine or looking to reinforce an aluminum block for longevity, our epoxy offers an affordable, reliable alternative to traditional solutions.

Ideal for all open deck engine blocks:

EPOXY54 has been used on a wide range of open-deck engine blocks, including the BMW N54 and N55; Honda/Acura K-series and B-series; Subaru EJ and FA/FB series; Mitsubishi 4B11; Mini Cooper N18; and GM's aluminum LS blocks (LS1, LS2, LS3 and similar). If your block is open-deck, EPOXY54 is designed to work with it.

Cast Iron Applications:

While EPOXY54 was originally formulated to match the thermal expansion characteristics of aluminum blocks, we do have many customers successfully using it in cast iron applications as well. These include small block Chevys, 2JZ-GTEs, iron LS-family blocks (LQ truck blocks and LSX race blocks), top fuel drag bikes, and others. In fact, in most aluminum blocks the cylinder liners themselves are cast iron, which is why the product can still perform well in these environments.

Dry Block Users: Kit Sizes

For full dry block applications, required volume can vary significantly depending on bore size, coolant jacket depth, and overall block design. Because of this, we strongly recommend measuring your engine's water jacket volume before installation.

To do this, seal off the water ports and fill the coolant jackets with a measured amount of water. The volume of water used will directly reflect the amount of material required. This ensures you have sufficient product and avoids coming up short during your fill.

For convenience, we offer standardized DRY BLOCK kit sizes based on common engine configurations:

  • Inline 6: 1080 ml
  • Inline 5: 1080 ml
  • Inline 4: 600 ml
  • Inline 3: 540 ml
  • V6: 2 × 600 ml (one per bank)
  • V8: 2 × 1080 ml (one per bank)
  • V10: 2 × 1200 ml (one per bank)
  • Flat 4: 1080 ml
  • Flat 6: 1200 ml
  • Cylinder Head: 1080 ml
  • Small Displacement Engines: 540 ml

These quantities are based on typical full-fill requirements, but variations between engine platforms can occur. Measuring beforehand is always the most accurate approach.

If you are unsure, feel free to reach out before ordering—we're happy to help ensure you get the correct amount.

Made in USA

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  • 5 stars: 42 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
R
Ryann

happy with delivery still yet to use but im sure I will be more then satisfied

F
Felix Wagner
N54 competition build sorted

Did EPOXY54 on my N54 competition before a full forged build. Machinist inspected the epoxy fill and said it looked excellent. Engine is now at 800whp and holding strong.

I
Ian Foster
N18 MINI countryman build

Used EPOXY54 on my N18 Countryman build before going stage 3 plus. Running 320whp and the block is holding perfect. Small engine but the epoxy filled it cleanly.

R
Ryan White

Very fast shipping and awesome product

T
Timothy

Exactly as described and very fast delivery

L
Lucas Pham
Filled my FA20DIT no problem

Did this on a FA20DIT before a full build. The consistency let it flow into every corner of the water jacket. Cured perfect and the block is now running 450whp with zero issues.

D
Dale Morrison
LS swap truck — runs great

Filled a 6.0 LQ9 before putting it in my truck build. Full dry block treatment. The process was simple and the cure was clean. Truck has been running hard with no issues.

P
Paul Eriksson
G20 with K swap — great product

Did this on a K20 before dropping it into my G20 project. Fill was clean, cure was solid, and the block has been running strong for 3 months at 450whp. Fast shipping and well packaged.

R
Rick Johansson
N54 world record attempt ready

Prepped my N54 with EPOXY54 before going for a world record quarter mile attempt. Product gave us the confidence to push harder than we ever would have otherwise. Block is still in one piece.

V
Victor Santos
K24 turbo build handled everything

Did EPOXY54 on my K24 before a full turbo build. Running 500whp and the block is absolutely solid. The thermal expansion match to aluminum is the real key — no cracking or separation.

A
Adam Schreiber
EJ255 Legacy GT build

Reinforced my EJ255 Legacy GT before going big power. The block is now running 400whp and has been on track multiple times without any issues. This product is the real deal.

P
Peter Teague

Excellent product

J
Jeremy

Great product and super easy to use straightforward directions as well as super simple video to follow

H
Hiro Tanaka
4B11 time attack Evo X

Filled my 4B11 Evo X block before a dedicated time attack build. It's been through 8 track days and the block is perfect. This is now a mandatory step in every Evo build in our shop.

S
Scott Nielsen
EJ20 STI — still going at 500whp

Did EPOXY54 on my EJ20 before pushing big power. Running 500whp on e85 and the block has been solid for a full year. Best money spent on the build outside of the internals.

P
Phil Sato
Subaru boxer filled no problem

Wasn't sure how a boxer layout would work but the pour went in clean. EZ30 flat six is now reinforced and running 350whp without any issues. Great customer service too.

S
Shane Brooks
N55 at 600whp no problems

N55 epoxy fill done before my single turbo build. 600whp on e85 and the block has been solid for 7 months. This is the best bang-for-buck upgrade on any open deck build.

A
Alex Kim
LS swap in an Miata — works perfect

Put this in a 5.3 before dropping it in my Miata swap. Dry block fill went smoothly and the engine has been running flawlessly since. Fast shipping and clear instructions.

M
Mohamed Fakhro

The time it took to arrive was longer than expected but the prompt responses from Epoxy54 made up for that. It was a pleasure doing business with them.

T
Travis Holloway
LS3 Camaro build — worked great

Did a full dry block fill on my LS3 before building for forced induction. Process was easy and the cure was rock solid. Running 650whp on a Vortech now and the block is perfect.

T
Tom Garrett
Best insurance for a boosted build

Think of this as insurance for your block. $200 now or a grenaded engine later. I did it before my EJ build and I've never had a moment of doubt pushing 400whp through it.

E
Eric Chan
K20 time attack build — no issues

Used EPOXY54 on my K20 time attack car before going big power. The block has been through countless heat cycles and track sessions without any degradation. Exactly as advertised.

D
Danny Nguyen
4B11 Evo build handled it perfectly

Did the epoxy treatment on my 4B11 before building for 600whp. The process was clean and easy. Running big power on e85 and the block is holding perfect.

S
Sam Fletcher
Mini N18 epoxy — easy install

Filled my N18 Mini Cooper block before going stage 3. The small displacement made it an easy pour and cure. Running strong at 300whp and the block has been solid all season.

K
Kenji Mori
EJ207 STI — track proven

Filled my EJ207 before a full rebuild. It's been on track 6 times this season and the block is perfect. Cooling temps are right where they should be. Would do this on every Subaru build.

J
Josh Navarro
Saved my B series build

Had a cracked water jacket on my B18 and needed a solution fast. EPOXY54 sealed it and reinforced the whole deck at the same time. Engine has been running for 6 months with no leaks.

B
Brett Olson
N54 at 750whp still solid

Running an N54 on methanol at 750whp. Did the epoxy fill before the build 10 months ago. Block is absolutely solid. This is now standard in every N54 build I do.

C
Carlos Reyes
N54 drag car block still holding

Running a dedicated drag car with an N54 at 800whp on meth. Did the EPOXY54 treatment a year ago and the block is still perfect after dozens of passes. Unreal product.

D
Dave Hutchins
Do this before you blow your block

Wish I had done this before I grenaded my first N54. Second build got the epoxy treatment before anything else. Six months on a built motor at 600whp and the block is perfect. Don't skip this step.

A
Aaron Lyle
N55 track car zero problems

Put this in my N55 before a big power build. Three track events in and not a single issue. Cooling temps are normal and the block feels like a completely different animal under boost. Legit product.

G
Greg Simmons
LSX 454 big block worked great

Used EPOXY54 on an LSX 454 stroker build. Wasn't sure if it would work on a big block but the process went perfectly. Engine is now in a drag car and has held up to repeated 10-second passes.

M
Matt Donovan
Great product and great support

Had questions about volume for my Subaru FA20 before ordering. Got back to me same day with exactly what I needed. Product arrived fast and the install was straightforward. Runs great.

J
Jordan Lee
FA20 WRX build — no regrets

Did this on my FA20 before building for power. Now running a full bolt-on e85 setup at 400whp and the block feels bulletproof. Shipping was fast too.