Epoxy engine block mod

[Scol]

Has anyone ever done or considered doing this mod to strengthen the factory weak liners ?

I do not have any first-hand exerience, however the Honda and BMW communities have been using this method for years with great success.

 

[Grsemky]

I mean for backyard engineering it works, but epoxy and aluminum do not expand at the same rate and it will eventually cause issues... If I'm making big enough power to support the block I would just spend the cash on this

 

[rallytaff]

I have a Toyota block sitting in my garage for the last 10yrs looking for a buyer. The block has copper inserts and I was going to have someone build this 3TC block into a screamer for my Corolla, but I retired from rallying.

 

[Scol]

I mean for backyard engineering it works, but epoxy and aluminum do not expand at the same rate and it will eventually cause issues... If I'm making big enough power to support the block I would just spend the cash on this

Agreed 100%. For reliability long term, going for aluminium CNC inserts is the way to go. However i've read a few have used this for years on high boost applications without any issues. Hence why I am asking the question.

With regards to the expansion rate between materials, a seller of this epoxy (without mentioning names) claims the following :

 

[Grsemky]

Agreed 100%. For reliability long term, going for aluminium CNC inserts is the way to go. However i've read a few have used this for years on high boost applications without any issues. Hence why I am asking the question.

With regards to the expansion rate between materials, a seller of this epoxy (without mentioning names) claims the following :

View attachment 67806

I'm curious what the composition is🤔🤔

 

[Dialcaliper]

It sounds like a low expansion epoxy derived from the stuff used to fill uncooled engine blocks for drag racing.

Procedure seems to be to fill the engine block partially with sugar or salt, pour a bit of epoxy into the top to reinforce it, and rinse out the sugar/salt post cure.

Seems interesting but not without the hazards of any kind of custom modification. Holes need to be drilled to allow coolant to flow to and from the head.

There’s even a photo here of a block like ours (with thin slots between cylinders) filled this way

https://epoxy54.com/products/epoxy54?

 

[Grsemky]

This popped up on my feed....

https://www.instagram.com/reel/DOerLwRj7mV/?igsh=MWRiOGJzeDN2bHBsaQ==

 

[Scol]

This popped up on my feed....

https://www.instagram.com/reel/DOerLwRj7mV/?igsh=MWRiOGJzeDN2bHBsaQ==

Interesting.

From the same profile
https://www.instagram.com/plz_chase_me/reel/DIoEZG-ueAp/

 

[Grsemky]

Interesting.

From the same profile
https://www.instagram.com/plz_chase_me/reel/DIoEZG-ueAp/

Honestly I think it's his product, but I did go through his reels... If you end up doing it don't forget to update us here lol

 

[H_DIXON]

I used the eBay kit and it works flawlessly, over 4000 miles on the motor so far no issues. I have a very upgraded cooling system so my temps probably will different then others. I have a koyo rad, deleted all of the coolant bypass systems using the oem base model ford fiesta thermostat housing and a custom water distribution block I designed. I use a 180 degree thermostat and it stays roughly 160-180 on the highway cruising. It fluctuates obviously when I’m ripping on it but I’ve never had it over 190. I’ve driven the car in 90+ degree weather and have driven it for entire days and I dailied it for a while no issues. You wouldn’t be able to tell it has epoxy and fully forged pistons and rods. If anyone has questions don’t hesitate to ask. I was considering making full write ups for everything I’ve done. Especially the fuse box swap from 2014 to 2016+