#41  
Old 03-11-2021, 09:33 AM
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EHTTFMF!!!
What no SMTTFMF ?

  #42  
Old 03-11-2021, 09:36 AM
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What no SMTTFMF ?
maybe for $1100 a set .... With free shipping

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  #43  
Old 03-11-2021, 02:03 PM
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The RPM CNC chamber E heads #61515 are $2400 everywhere I look. That seems to be what Speedmaster copied. I think $2200 gets you the old chambers. And the Speedmasters have gone up to $1,988. So they must be selling OK.

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Old 03-11-2021, 07:12 PM
mgarblik mgarblik is offline
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Thanks Mike, where do you like putting the exhaust seat in relation to the valve face for a performance street car?
I run my seats pretty narrow, Old school, the way Joe Mondello taught me. Intake even on a street engine, about .040" wide off the outside of the valve face about .020" Exhaust I move inward some, about .030-.040 off the outside edge. .050-.060" wide maximum. It does depend on the shape and thickness of the margin as you know. It just looked like those were way to the stem side of the face. The pic was kind of hard to see. I guess the current trend is to go a little wider now?

  #45  
Old 03-11-2021, 09:08 PM
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I run my seats pretty narrow, Old school, the way Joe Mondello taught me. Intake even on a street engine, about .040" wide off the outside of the valve face about .020" Exhaust I move inward some, about .030-.040 off the outside edge. .050-.060" wide maximum. It does depend on the shape and thickness of the margin as you know. It just looked like those were way to the stem side of the face. The pic was kind of hard to see. I guess the current trend is to go a little wider now?
The placement on the Edelbrock is pretty good. It starts about .020 in from the outside edge and is roughly .060 wide. It's not the best picture. Speedmaster completely missed it! ...... One of the new trends is about .050 on the intake and have it over hang the OD of the valve a few thou'. 😳

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  #46  
Old 03-11-2021, 09:26 PM
mgarblik mgarblik is offline
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The placement on the Edelbrock is pretty good. It starts about .020 in from the outside edge and is roughly .060 wide. It's not the best picture. Speedmaster completely missed it! ...... One of the new trends is about .050 on the intake and have it over hang the OD of the valve a few thou'. 😳
I have had some intake seats end up on the outside edge like that. My other Mentor, Colin Myers, of Parsons @Myers racing engines always said "don't worry about it". I guess he was ahead of his time! I am really thankful to have had excellent teachers over the many years. Joe Mondello was the most amazing to watch in person. He operated a big electric die grinder like an electric pencil. Incredible skill.

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  #47  
Old 03-17-2021, 02:02 PM
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Do the Edelbrock exhaust bolt holes have helicoil inserts in them also? Can't tell from the picture....

  #48  
Old 03-17-2021, 07:01 PM
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I agree, the speedmaster heads look solid out of the box, cleanup would help I would think. I am moving and would sell the new in box set that I have for $1599 shipped if anyone was wanting them today vs waiting for thanksgiving.

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  #49  
Old 03-22-2021, 04:37 PM
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Do the Edelbrock exhaust bolt holes have helicoil inserts in them also? Can't tell from the picture....
Yes they have heli-coils.

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Old 03-23-2021, 11:21 AM
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Yes they have heli-coils.
How about the Speedmasters?

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Old 03-23-2021, 12:29 PM
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How about the Speedmasters?
Speedmasters have helicoils for rocker studs and exhaust manifolds.


NEW PROBLEM, though! I started to install the SM's on the motor I'm building. One head went on without issue. The other, however, I had several bolts that were "tight".

I had chased and thoroughly cleaned the block's bolt holes, so new that was not the problem. The issue is the heads, some of the bolt holes are drilled a tad off-center. When I removed the head and looked into the bolt hole, you can see where the threads of the bolts were contacting the wall of the hole.

At least the contact caused witness marks, so I know where to file. I'll try to post pictures later.

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  #52  
Old 03-23-2021, 12:56 PM
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Quality control is what worries me today with parts. The last new intake I installed..the bolt holes were way off.

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  #53  
Old 04-15-2021, 09:47 AM
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Quality control is what worries me today with parts. The last new intake I installed..the bolt holes were way off.
For speedmaster?? or Edelbrock?

I have found the majority of edelbrock intakes I've used (new) needed to have the intake flange milled.

  #54  
Old 04-15-2021, 04:17 PM
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For speedmaster?? or Edelbrock?

I have found the majority of edelbrock intakes I've used (new) needed to have the intake flange milled.
Edlebrock..

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