300ci Alternative Aluminum cylinder head

[InlineDave87]

Hello all, I have returned yet again. Been absent since I had to sell my truck last summer to feed the family. So recently I came across these no name (chinese?) aluminum heads for SBF on fb mp. Im assuming they arent gonna be great so they might make a good candidate chop them up and make my own cross flow head. I do know the sbf heads valve are opposite of the 300 and will require a custom cam. I wont mind taking my time and slowly spending the money to making this work. Plus i still dont have anything to put it in either to road test.

 

[pmuller9]

How much do they flow?
The ported big valve 300 heads flow as much as 220 cfm at .600” lift.
If those SBF heads don’t flow significantly better then it is not worth the effort.

 

[InlineDave87]

I believe its suppose to be 275 cfm but i would have to have it tested.

 

[aussie7mains]

BARRA.

 

[InlineDave87]

BARRA.

My understanding is they work on the inline 200 and 250.

 

[aussie7mains]

What I meant was, ditch the 300, get a barra as a whole engine. Doing all that work to get the torque is a BIG job, when a Barra is almost as good stock (250bhp, 400n/m) and can give much more, and is 4valve, DOHC. Barra turbo is up to 320kw. I think it would cost less in the long run. BTW the barra head is NOT going to bolt onto the earlier six, and why would you even try when a whole engine is so cheap.

 

[InlineDave87]

What I meant was, ditch the 300, get a barra as a whole engine. Doing all that work to get the torque is a BIG job, when a Barra is almost as good stock (250bhp, 400n/m) and can give much more, and is 4valve, DOHC. Barra turbo is up to 320kw. I think it would cost less in the long run. BTW the barra heas in NOT going to bolt onto the earlier six, and why would you even try when a whole engine is so cheap.

I would actually like to save that for a mustang build. Im thinking if building this either for my current truck or in a 90s f150 with a bullnose front clip.

 

[pmuller9]

The biggest challenge is getting the custom side cover to seal.
Have you figured in the time and cost for the intake and exhaust manifolds along with the valve cover and reverse lobe sequence camshaft?

 

[InlineDave87]

The biggest challenge is getting the custom side cover to seal.
Have you figured in the time and cost for the intake and exhaust manifolds along with the valve cover and reverse lobe sequence camshaft?

Its gonna be a project i take my time with. I have other projects to get out of the way before i get to this one. The first step is to see if they are still good, so have them tested and if they are i may just use them on a 351 build. But if there is a crack like i thought i saw on that first cylinder then i could cut that one out and make my head. I was just wanting to go outside the norm of everyone piecing together LS heads.

 

[pmuller9]

There are many LS head projects for the 300 six but I have yet to see one running successfully in vehicle for any length of time.

 

[InlineDave87]

There are many LS head projects for the 300 six but I have yet to see one running successfully in vehicle for any length of time.

Same

 

[63 Sprint]

BARRA.

No!

Here in the US, the Barra Engine is a piece of junk. In the US, the Barra engine isn’t even a good boat anchor.

You can do a lot better with the GM inline six engine. Some may ask why? Because, you can get parts for it in the US.

Members, just wait for the 300 big valve, ported aluminum head to come out.

 

[pmuller9]

You can do a lot better with the GM inline six engine. Some may ask why? Because, you can get parts for it in the US.

Here in the states you can do better than the Barra with the GM 4200 Vortec.
Unlike the Barra Engine, the GM 4200 Vortec can be found cheap, and you can get parts for them at your local autoparts store.

The gray top and green top stock Barra engines are junk in comparison.
The only stock Barra engine capable of big horsepower under boost is the red top Barra.

Any of the GM 4200 Vortec engines can produce as much as 1000 hp in stock form under boost.

One of the very important things that is overlooked is transmission adapting.
Much easier and cheaper to adapt a Vortec engine to an American transmission than trying to adapt a Barra.

 

[aussie7mains]

Here in the states you can do better than the Barra with the GM 4200 Vortec.
Unlike the Barra Engine, the GM 4200 Vortec can be found cheap, and you can get parts for them at your local autoparts store.

The gray top and green top stock Barra engines are junk in comparison.
The only stock Barra engine capable of big horsepower under boost is the red top Barra.

Any of the GM 4200 Vortec engines can produce as much as 1000 hp in stock form under boost.

One of the very important things that is overlooked is transmission adapting.
Much easier and cheaper to adapt a Vortec engine to an American transmission than trying to adapt a Barra.

True, and I can not understand why more people dont use them, the GM, we didnt have it here. Ive stuff about it, seems like a good thing, only in trucks? Barras here are cheap of course, good one will cost about $500, they last forever, give little trouble.

 

[sixtseventwo4d]

Over here they start around 1500$ when you find one and it usually isn't complete enough to install without grief of getting it all in just to have to try and get more together to run. It would be easier to move over there. You can crow about barra all day and it has it's bragging rights but here it as much a pain in the ass as getting an aluminum head for one of these 300's

BARRA.

 

[63 Sprint]

I was going to post again but… I decided stop because I would like to see this thread get back on track again.

No more about Barra, GM 4200 Vortec or any other engine, unless, the original poster wants to discuss other engines.