Who can give me some info on the M&A stage2 heads.......

[THE BLACK MAMBA]

Anybody still running these heads? just wondering how they compete with the GN1 Aluminuim heads...

 

[Squid4life]

http://www.turbobuick.com/forums/time-slip-combo-database/363728-only-3300-lb-buick-v6-8s-using.html

Donnie is using them, somewhat successfully.

 

[THE BLACK MAMBA]

I was just wondering if these heads are better than the GN1 Aluminium heads....

 

[THE BLACK MAMBA]

I was just wondering if these heads are better than the GN1 Aluminium heads....

just trying to put together a list for next year....Razor alky is top on the list...also trying to get info on Aluminium heads

 

[Squid4life]

That would take some research for sure then. I am sure you can find flow info posted for each set on here, 90% sure I have seen them. The M&As might be harder to find too. What are your goals, including rpm, turbo, cam, hp/et, etc? I am sure with that info one of the more versed guys will provide so,e input.

 

[87action]

They are great heads, just outdated. Get with T/A performance like I did. They are the ones that bought the casting and developed their own heads (Street Intimidator I believe)

 

[cruzn57]

M&A was bought by TA

and improvements were made.
they flow as good as a alum GN1 head, they do have a unique valve cover gasket, (available at TA)
all in all there a good head, and don't crack like early versions of GN1 heads did.
if you can get them at a good price, by all means do!
they use small block chevy roller rocker arms, (stud style)
they can come with different size valves, 1.8 up to 1.94 intake. and 1.6 ex
good luck!

 

[norbs]

They are great head just had a tendency to crack once in a while. I have a set for sale, they have been repaired though and tested ok and they won;t fit a 3.8 becuase they have 1.94 valves in them.

 

[Squid4life]

Damn Norbs, that is a nice looking set of heads!

 

[norbs]

Yes they are sweet but not useable on a 3.8 so they are collecting dust............

 

[cruzn57]

here is a flow sheet from my M&A's, with no major work, (no welding, no epoxy ,etc)
these are 1.90 intake on a .030 over 231 cu in , 109 block, they work perfectly!
this engine was machined and built by Zimmerman in AZ,

 

[Cme2fly]

Yes they are sweet but not useable on a 3.8 so they are collecting dust............

They will work on a 3.8 with some modifications to the block (bore notch for intake valves) and pistons (intake valve clearancing). I have a set of M&A's with 1.94 intake valves on a 109 without any issues. M&A heads are very similiar to out of the box GN1s.

 

[THE BLACK MAMBA]

here is a flow sheet from my M&A's, with no major work, (no welding, no epoxy ,etc)
these are 1.90 intake on a .030 over 231 cu in , 109 block, they work perfectly!
this engine was machined and built by Zimmerman in AZ,

Thanks for the info...

 

[gund_tt]

here is a flow sheet from my M&A's, with no major work, (no welding, no epoxy ,etc)
these are 1.90 intake on a .030 over 231 cu in , 109 block, they work perfectly!
this engine was machined and built by Zimmerman in AZ,

Lee

Is this the flow sheet for the M&A heads on my car?

Ken

 

[cruzn57]

Yes

these are the one's on the blue car.