Speedmaster aluminum heads

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1966Post

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do these heads only oil the rocker gear with hollow pushrods or do they have provision for oiling thru the rocker shafts like iron LA heads?
Thanks!
 
I've got a brand new set in the shop, and was just looking at that very thing the other day. They have oil holes to the shafts, just like stock iron heads, so you would have to make sure the shafts are positioned properly on these heads just like you would on iron stockers.
 
JDMopar said:
I've got a brand new set in the shop, and was just looking at that very thing the other day. They have oil holes to the shafts, just like stock iron heads, so you would have to make sure the shafts are positioned properly on these heads just like you would on iron stockers.
Click to expand...

Any comment about the quality/workmanship on those heads? I'm considering the same heads for a build. 65'
 
Thanks all There is a deal right now that comes with a free knock-off air gap intake
Would rather see the Black Friday pricing again though!
 
Plymouth 65 said:
Any comment about the quality/workmanship on those heads? I'm considering the same heads for a build. 65'
Click to expand...

They look good to me, but I'm going to take them to a friend who builds NASCAR, and CASCAR engines, and get him to check the guides, valve job, spring pressure and stuff.
 
I got 2 sets in use...one set was hand ported by IMM with 2.05 intake valve on a 71 Dart 360...Ran has run a best of 10.50s in Las Vegas.
Second set is on a 75 Duster 360, it was a bare speedmaster cnc version that a competition valve job was done on...it has run a best of 11.19 in Vegas, this engine does not have the same quality parts as the other 360 does....

So yes they perform if they are done right...
 
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