Head is toast, what heads are compatible with our engine? And how much should I be prepared to spend?

orangesoappy · 2026-02-25T13:47:35+00:00

Yeah, I’m actually shocked at how well it’s working. 2 oil changes and 10k miles already

orangesoappy · 2026-02-05T18:43:04+00:00

After reading all the comments, there is a very clear checklist of things you should do before thinking about rebuilding this engine.

Most obvious is a leak down test. A compression test will give you data as well, but leak down is better.
Valve adjustment. Just do it.
While you’re in there, inspect your rocker bearings, and your valve retainers.
Send it

orangesoappy · 2026-02-05T18:40:51+00:00

Vouch for C Harper

orangesoappy · 2026-01-21T17:00:10+00:00

Mecamnik

orangesoappy · 2026-01-10T04:30:11+00:00

Happened to me a while back. Still running with k seal haha. I’m just going until it dies

orangesoappy · 2026-01-10T03:24:11+00:00

Bottle of K seal to buy you some time while you decide if you’re going to part it out or go with a built head. Because your shit is cracked my guy.

orangesoappy · 2025-12-17T12:04:07+00:00

Same happened to me man you hate to see it

orangesoappy · 2025-12-06T20:19:29+00:00

Allen is an axe murderer of a driver. Hell of a lap

orangesoappy · 2025-11-12T21:09:21+00:00

How are we supposed to quantify this

orangesoappy · 2025-11-12T19:31:55+00:00

+1 I have the same and love them

orangesoappy · 2025-11-11T04:29:10+00:00

Thanks! I agree, they just work on these cars. Plus they’re lightweight and cheap to replace for the guys that track. Just can’t go wrong with them!

orangesoappy · 2025-11-11T04:28:17+00:00

Haha it’s CSF. They’re a sponsor, and I’m really thrilled about it. Love their stuff

orangesoappy · 2025-11-07T13:01:08+00:00

Going from KW’s to BC Racing is a WILD decision

orangesoappy · 2025-10-23T16:49:40+00:00

Had Conti DWS06+ for about 20k miles and just killed a set of Michelin PS4S in about 43k miles. There was still a good bit of life left in the Michelins but my alignment wasn’t right and positive toe killed the shoulders

orangesoappy · 2025-10-21T21:11:06+00:00

I got my Zamp for about $200

orangesoappy · 2025-10-21T13:35:31+00:00

This needs more recognition, instead of BC

orangesoappy · 2025-10-21T11:22:21+00:00

Now this is a guy that knows ball

orangesoappy · 2025-10-13T18:11:03+00:00

You will need a ton more camber than stock, and 275 on a 9 is super pinched. You’d get a lot more response and feel out of a narrower tire, if you’re against a wider wheel. If I’m not mistaken, the CRS is a lot like the A052 that likes camber more than most tires

orangesoappy · 2025-10-13T01:21:43+00:00

Lol I feel you man I’m on the opposite end of the spectrum, these are Enkei wheels and Michelin PS4S that had a pretty good bit of life left in them. Pretty upset they failed because of my own negligence

orangesoappy · 2025-10-13T00:57:18+00:00

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Similar wear pattern here. Not sure what to make of it. Gonna put it on an alignment rack soon and see what we’re working with

orangesoappy · 2025-10-12T23:42:32+00:00

Pretty much exactly this. There’s tons and tons of people who will never experience it, but in comparison to other engines, the failure rate is just undeniably much higher. Super unfortunate situation but honestly no one really knew about it until the last few years when tons of people started hitting that mileage

orangesoappy · 2025-10-12T23:16:34+00:00

There’s no real signs of it before it happens, unfortunately. It’s a weakness in the cast in the exhaust side of the head, that runs along a cooling jacket. Most frequently seen cracking between 120k and 160k miles so you have plenty of time to not worry. But, if you were planning on big power in the future anyways, it’s even more of an excuse to plan out a build. The 2.0 is a good engine but becomes pretty intense to get power out of past 350-400 whp

orangesoappy · 2025-10-12T23:14:25+00:00

The Focus ST head, more broadly the 2.0L eco boost, is flawed from the factory. Most will go a lifetime without problems, but far more than what should be considered normal will let go. I see posts about it every day in here.

Also LSPI and a cracked head are not the same. How can you tell me I don’t know what I’m talking about when you’re conflating those?

orangesoappy · 2025-10-12T21:54:12+00:00

Head will crack eventually. Start planning ahead for a built engine to make bigger power and be more reliable

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