Billet Aluminium Engine Block & Heads

[my_gtr32]

Not sure where to post this but I came across a company here in in OZ that makes engine blocks and heads out of aircraft grade billet aluminium. Would be very strong and light I guess.

Wondering if anyone knows of a complete engine build using one of these? They are available for a number of engines types. SR20, 2JZ, 4G63 and the mighty RB26!! Even available to suit Chevy bell housings. Now thats not you average Commy.

No idea of price or much detail but could you imagine the benifits? Weight distribution on a GTR for one, and track durability. Any info or details of projects in the pipeline would be an interesting read.

Here is the link

http://www.bulletcylinderheads.com.au/billetblocks.php

[bigmikespec]

If an RB26 block comes in below five figures I would be f**king surprised. Absolutely super cool though! Money no object anyone...?

[PM-R33]

Very interesting! The weight savings would be fairly substaintial i would believe. 20-30kg possibly? What's a full RB with all accessories weigh, 250kg?

Edited January 30, 2010 by PM-R33

[Swiper the Fox]

If an RB26 block comes in below five figures I would be f**king surprised. Absolutely super cool though! Money no object anyone...?

Ive sold RRR blocks for five figures...so those guys with that sort of coin would be interested.

personally unless your after over 1500hp a normal 05U block will do the job. Most of the big hp GTR's in this country are using 05U blocks without an issue. Blocks split and crack due to poor engine harmonics than anything else, an engine prepped and assembled properly with a sensible bore size will not have block issues. The only real advantage of the N1 item is the thicker deck which does in some applications prevent fatigue cracks around the head stud holes when running mega boost.

Edited January 30, 2010 by DiRTgarage

[PM-R33]

I would think these blocks would mainly be an advantage for circuit work to get weight from the front. Hence i would like to know the differences in weight of these compared to a normal RB block.

Paul you would know, whats an RB block weigh?

[STATUS]

bullet cylinder heads pretty much lead the country for 26 heads, many shops claim to do cnc in house but all they do is send it to them....

[LedZepLen]

Thoes blocks look like they should be in a show room. I see by their lack of prices these fall into the "if you need to ask" catagory of parts. It would be really neat to see a company like that , that makes engines from raw material make a rb38 or something. I've always thought about how cool it would be if a macinist in his spare time could make a 4L 2 stroke rotax and put it in a car.

[T-Rex]

I know of a V8 engine for sale, bolt it together for a streetable 1000-2000hp. Basically im saying dont look for anything billet and think you have something special because you dont. Build something factory and get way more respect from the V8 crowd, i got respect from a bloke running a road runner Hemi as his car stock was only 1 second per 1/4 mile quicker than my WRX Which only had 225HP!!

[Swiper the Fox]

bullet cylinder heads pretty much lead the country for 26 heads, many shops claim to do cnc in house but all they do is send it to them....

one of our heads went back to back with a bullet item on a big car in WA.

i wont say which one was better

[Cartman]

what about rams head service with there cnc ported heads... recently saw a 20valve head done by them and wow it was perfect..

[T-Rex]

one of our heads went back to back with a bullet item on a big car in WA.

i wont say which one was better

Its the old story of flow data is not everything. part of why i asked about the GTR head allowing 1400hp. I dont like to mention this, but the 2JZ head can flow 2000hp without any porting, whats the maximum power anyone has seen from a GTR with untouched cylinder ports?

[PM-R33]

I know of a V8 engine for sale, bolt it together for a streetable 1000-2000hp. Basically im saying dont look for anything billet and think you have something special because you dont. Build something factory and get way more respect from the V8 crowd, i got respect from a bloke running a road runner Hemi as his car stock was only 1 second per 1/4 mile quicker than my WRX Which only had 225HP!!

Umm what the hell has that got to do with anything?

"More respect from the V8 crowd" What on earth are you dribbiling about?

[R31Nismoid]

lol who knows.

[XRATED]

I'd still like to know what they're asking for a 26 block...

[wrxkilla]

I'd still like to know the weight difference also !

[T-Rex]

RB26 block is $11,000

[Fastrotor]

one of our heads went back to back with a bullet item on a big car in WA.

i wont say which one was better

No guessing it was yours that was better Paul, obviously. But , by how much is the real question. I'm guessing i'll get a cryptic answer, but have to ask !

Gary

[bigmikespec]

Do you still use the OEM steel crank girdle or do you get a billet aluminium one too? I would not think there would be much of a weight saving otherwise, and for $11k I would rather grout an 05U block, chuck in some steel sleeves and spend the extra money elsewhere.

edit: Paul, are your heads done by hand or you have a CNC program?

Edited January 31, 2010 by bigmikespec

[T-Rex]

The main caps are solid billet 1 piece like the factory item. This block would be great for drag cars or high output track cars, a bit overkill for the street though.

[zebra]

do these billet block run coolant systems?

most billet v8 blocks ive seen anr just that...blocks of aluminium with 8 holes in them and a couple of oil galleries.

as for the weight saving, buy a couple of carbon bits like guards and a bonnet and that will be the weight difference, as i hae a feeling that to get it strong enough to hold 1500hp its gonna need to be fairly chunky.

edit: just looked at the website, so they do have cooling passages