FBM Stage 1 and Stage 2 Head packages
 

Here is the finished product of our Stage 1 and stage 2 FA20 Cylinder head packages

Our Stage 1 is designed for street and strip use with the same port treatment as our stage 2.

Our Stage 2 is designed for competition/race use but is still street friendly. It includes nothing but the best materials available to withstand high amounts of boost and anti-lag. This is the same package used in our shop car.

-----FBM Stage 1 Fa20 Head package ----

- FBM Competition port and Polish intake and exhaust ports

- Competition Valve Job

- Resurfaced and Clean and assembly

- Ferrea 6000 series Valves

- Ferrea Single Valve Springs

- Ferrea Tool Steel Retainers

- Ferrea Seat locators and new valve stem seals

Stage 1 Retail = $2495 plus core



-----FBM Stage 2 Fa20 Head package ----

- FBM Competition port and Polish intake and exhaust ports

- Competition Valve Job

- Resurfaced and Clean and assembly

- Ferrea Comp Plus Valves

- Ferrea Dual Valve Springs

- Ferrea Titanium Retainers

- Ferrea Seat locators and new valve stem seals

Stage 2 Retail = $2995 plus core

Stock Exhaust Flow @ .500 lift = 170
FBM Stage 1 & 2 Exhaust Flow @ .500 = 220

Stock Intake Flow @ .500 lift = 280
FBM Stage 1 & 2 Intake Flow @ .500 = 305


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Dammnit..... ridiculous as usual... great work!

Is there going to be cams on the horizon or does stock seem to be more than enough? Also are you guys going to do a complete long motor for us Aussie guys to just import?

+1 on cams..
any discounts if ordered with your guys' short block as well?

I don't suppose dyno charts would follow? Stock vs. New Heads?

Mild regrinds are in the works and a complete short block is available :)

paging Dr. @Dimman ^^

oh, and @arghx7 might be interested in those numbers as well.

How would these packages do with a high RPM NA setup?

How well do the ported ports lineup with the OEM intake manifold? Will the FBM intake manifold be required to avoid reversion?

We might have a car here that we will be testing for NA pretty soon. I don't think the FBM IM will be required but we will test all sorts of combinations when they are done.

Not a bad price to get the block and head built by Full Blown! this is awesome ; cams and the intake manifold will complete this!

Oh yeah, is that the price per head, or per engine? I'm assuming it's for two heads, but one never knows.

It is for a pair of heads

Can we get some kind of baseline comparison with the stock heads, preferably overlaid with the stock lift profile? You're listing at .500 inches of lift and I don't even know if the stock cams have that much lift.

Is this like your shortblocks, where we send in our heads as cores, or is this price for the pair of heads outright?

Very tempting, for 6 grand I could have a total monnster!

Reground cams would require custom shimming, correct?

I need to get my car sorted out as it is first though.

Must have..... Shipping a full block sounds expensive though...

I once used anoutfit called "Forward Air" to ship big heavy stuff.

They have depots near every big airport. You need to pick up at their depot, as they don't do door-to-door, but it was SOOOO cheap.

Its not as bad as you think. I shipped my motor out of a freight place near my house and it was like 150 bucks I think if that. You put it on a pallet and onto a truck. I wrapped it up and placed it on a tire, then on a pallet.

Damn, thats some good head.

My bank acount is going to hate u 2.... Time to call around and get general quotes.

Sorry nothing yet, but very soon.

I will get a chart up in a few days.

We would need your cores, and yes shimming is required. We can offer that service too.

We can also offer full long blocks ready to drop in. We have done a few of those already.

It is a possibility but to be honest, there really isn't much room left.

Soon...SOOOOOOOOOnnnnnn!!!!

Going broke in 2015.........Keep it up FBM!!!

What pressure are those cfm from?

Standard 28" Water Column?

1 great head is awesome...

But then FBM is giving us two... :party0030:

I missed this, but totally agree. That's 12.7mm lift, and I doubt stock is much more than 8.5mm.

So not too relevant information without more data. In all honesty, less than a 10% gain on the intake at such high lift doesn't give me high expectations. I can hope at least that they don't kill much velocity so there's that...

what would be the additional core cost if we didn't want to send ours in?

$1300 for the core if you want to keep yours. That would be just for the head without rockers, cam plates ect ect. Just like how you see it in the pics.

Agreed. The stock numbers aren't bad assuming their taken at 28", but I was hoping there'd be more room for improvements.

305 is pretty good. This is slightly better than K20s I've had flowed. Granted, those can see really amazing flow rates with a good amount of work. this looks like a very streetable setup that should prove reliable with a modest bump in power. Cams will gain a lot. These cams are probably a 250* with 8-9mm lift if I had to guess. Here's hoping for a ~270* with 11mm for a street cam that's aggressive. Should be able to dial out some lope. Not really sure how this engine will react to this because this is my first subaru.

Awesome! now bring on cams!

Any idea if there will be upgrades for the rockers?

I don't think the stock rockers are bad at all. Have you seen what they look like?

sub'd cause awesome.

There have been multiple rockers failing ... including on a completely stock motor.

We offer a stage 1 cam right now.

We modify the rockers on all our in house builds. Unfortunately they can only be done in house with our complete head packages.

I was unaware of this. I'll have to do a search. Thanks for the info.

Another vendor made a post today that indicates the 14's have longer valves than the 13's. Any idea why Subaru would make this change?

any dynos with the heads? how far into the power band are you able to hold power? and where are yall redlining?

+1 , few months away form company yearly bonus time. Going to be mostly financially irresponsible and buy car parts :thumbsup:

@FullBlown +1 for flow numbers at stockish lift levels. You guys got awfully quiet once the questions started flying ;) Those gains are really impressive at .500, but if you want people to throw their money at you then we need to know what we should expect without massive cams.

Also, how are the rocker arms holding up? I've read that these can be one of the weak points of the head on the FA20...