Subaru "Billet" Block

wheels17 · Feb 6, 2017

This may still be a misuse of the term billet, but it sure must have been a big chunk of aluminum before they started machining.

It's a completely CNC machined block for a Subaru from the solid. Very pretty compared to the cast version.

I'd love to see a video of the machining.. Here's a teaser

WREJBB Willall Racing Subaru WRX/STi Billet Block - YouTube

They claim to get 1000 HP out of the block. (Mine gets 170). More shots of the block

WREJBB Subaru 1HP Sideways - YouTube

On sale at IAG for the low, low price of $9,999.99.

IAG Willall Billet Aluminum EJ25 Subaru Case Halves | Subaru Multiple – Modern Automotive Performance

More discussion of the block benefits, and more views.
Willall EJ25 Billet Block VS. Stock - A Full Comparison - YouTube

John Welden · Feb 6, 2017

Is it aircraft grade billet?

ManualEd · Feb 6, 2017

John Welden said:
Is it aircraft grade billet?

Get with the times. Its MilSpec 7075 the same kind of Aluminum used in the Courageous iPhone 7.

John Welden · Feb 6, 2017

ManualEd said:
Get with the times. Its MilSpec 7075 the same kind of Aluminum used in the Courageous iPhone 7.

C and C billet is the best billet. You wana power coat it though or it'll rust on you.

I run power coated billet dimon plate on my rig. Shit looks sick. $$$$ though. Worth it.

Sent from my iPhone using Tapatalk Pro

litlerob1 · Feb 6, 2017

That ain't nuthin' Welden I got ano on my cylinder bores, plus adamantium rockers, and plexi glass head gaskets. And it all Mil. Spec. 14. Waaa

dian · Feb 7, 2017

what strikes me is that the coolant passages are much smaller. might be o.k. for drags. they should really cast an iron block.

gkoenig · Feb 7, 2017

This is what happens when Haas makes 5 axis machines that are affordable.

DDoug · Feb 7, 2017

John Welden said:
Is it aircraft grade billet?

well the Subaroo engine is popular for aircraft... :cool:

Subaru Car Engine Conversions for Homebuilt Aircraft

JNieman · Feb 7, 2017

John Welden said:
Is it aircraft grade billet?

Only if you take it off some sweet jumps.

wheels17 said:
They claim to get 1000 HP out of the block.

Man that's at least 50 more HP than my Outback gets.

wheels17 · Feb 7, 2017

John, not just plain aircraft grade, it's "AEROSPACE grade".

IAG Performance / Willall Stage X 2.5L Subaru Billet Aluminum Short Block For WRX, STI, Legacy GT and Forester XT. Built power output rating 1+BHP.

"Machined from solid billet 6061-T6 Aerospace grade aluminum"

gustafson · Feb 7, 2017

whidbey said:
Billet jokes aside, a block that thick has drastically lower material properties compared to a real forging. Not only do they they use silly language, and waste a bunch of expensive aluminum but they also make a block that probably is actually less strong where it counts.

L

Engine blocks aren't forged

How much does aluminum cost?
compare to new engine blocks

gustafson · Feb 7, 2017

10 grand,

less than a grand in material, plus liners

Wonder how much faster it would be machined if they hadn't made it so pretty, don't see the point of that level of finish for an engine block

GregSY · Feb 7, 2017

I'd have to think you'd need to do some stress relieving (thermal cycling) to that thing before it ever 'settled in' dimensionally.

But the real question is..."Why?" Does anyone really need a block that fancy to stop at Whole Foods Market to buy some new Birkenstock sandals and organic granola?

DDoug · Feb 7, 2017

GregSY said:
I'd have to think you'd need to do some stress relieving (thermal cycling) to that thing before it ever 'settled in' dimensionally.

But the real question is..."Why?" Does anyone really need a block that fancy to stop at Whole Foods Market to buy some new Birkenstock sandals and organic granola?

I believe, now it's just a hunch....that people are, GASP, racing these things.... :crazy:

Butch Lambert · Feb 7, 2017

dian said:
what strikes me is that the coolant passages are much smaller. might be o.k. for drags. they should really cast an iron block.

Why? What is the material
used for the top fuelers that produce 5,000+HP

Ries · Feb 7, 2017

Cast aluminum, or iron, blocks, make great sense and can be made at a reasonable cost- assuming you are making a few hundred thousand a year. Millions is better.
But for short runs- even if this guy was selling 10,000 of these a year, which he obviously is not-
the amortization of the pattern and foundry costs means its cheaper to machine them.

Also, to put this in perspective, an Americun V8 block for high horsepower racing is in the same price range, and, companies like DART call their blocks "billet" too. And they machine theirs, too. Darts are well over six grand for a machined small block chevy.
BBC Billet Blocks – Dart

Dunno what a Keith Black is going for these days, but I would guess its a lot, considering that a used fully built Keith Black can go for $35,000.

3t3d · Feb 7, 2017

Possible use for a ...stronger... Subaru engine block.

How To Build A Sleeper [Feature Length] - YouTube

dstryr · Feb 7, 2017

Here is a billet block I built for a local guy a few years ago.
Starting size was 12x12x28"

At the end you could pick it up and hold it over your head with ease. The guy in the picture is the happy customer helping me prep it after the final machining op at 1 AM LOL

John Welden · Feb 7, 2017

I've got this billet gas pedal on my rig

Lokar BFG-6010 XL Series Billet Aluminum Throttle Pedal, Ball-Milled

jCandlish · Feb 7, 2017

John Welden said:
I've got this billet gas pedal on my rig

"Rig" is Pacific Northwest slang for both a fancy truck and the gear used for IV drugs.

Which rig you talkin' about?

Subaru "Billet" Block

Stainless

Diamond

Stainless

Diamond

Diamond

Titanium

Titanium

Diamond

Titanium

Stainless

Diamond

Diamond

Diamond

Diamond

Titanium

Diamond

Diamond

Diamond

Diamond

Titanium

Similar threads