M&A Cylinder Head Rocker Arms

[FlightTest]

Does anyone out there with the old aluminum M&A cylinder heads remember what stud mounted roller rockers they use. I want to play with some different rocker ratios. If memory serves they were regular crane 1.65 ratio small block chevy rocker arms but I am not sure. Anybody have a part number or something out there I can cross reference with?

Thank you!

 

[Fuelie600]

I believe they were Crane. Scorpions would probably work also.

 

[FlightTest]

Do you think they are a small block chevy rocker or maybe a pontiac?

 

[Fuelie600]

Do you think they are a small block chevy rocker or maybe a pontiac?

Call ArizonaGN or T/A Performance. The T/A heads are basiclly improved/corrected M&A's. Thet should be able to get you what you need.

 

[Alky V6]

You should convert over to shaft mounted rockers. The stud mounted rockers don't wear well with this head.

 

[RUQWKNF]

The ones that came with mine, on my old White '87 Limited, were Crane Energizer 1.60 ratio, 3/8 stud rockers. I had one of the last good sets of Stage 3a M&As left in the country at the time.

Looking at my Crane catalog page 568, shows a set for Chevy V6, which should work just fine. Crane PN 11746-12

Crane Cams 11746-12 - - summitracing.com

Assuming your heads have standard 3/8" rocker studs.

Hope this helps.


Patrick

 

[FlightTest]

Thanks for the responses, I am going to try a couple different ratios for fun. I would love to find a shaft roller setup but the ones I have seen are big bucks. I have heard TA sells the valve cover gaskets and I should get a new set the next time I have the valve covers off because the stock ones have stretched like crazy. I have almost 120,000 miles on my M&A heads already.

Does anyone have a spare set of shaft rockers?
Thanks!

 

[Mike Licht]

they were 1.6 rockers for small block Ford
Mike

 

[Cheeseburger]

I would get the T&D rockers as they have the correct offset for the M&A heads. I never cared for the way the non shaft mount rockers sat.......

 

[FlightTest]

Thank you very much for the input Mike. I bought the set of heads from you a long, long time ago. Does T&D still make the shaft mounted setup?

 

[Mike Licht]

not really sure but I bet they would make a set for you, they may have a set on the shelf that they want to get rid of too
Mike