Re: Hemi intake fit
[Re: cudaman1969]
#2789849
06/27/20 12:46 PM
06/27/20 12:46 PM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
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Posts: 17,844
S.E. Michigan
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"bottom face"= china wall front and rear?
If so, yes, normal.
Stock used a cork gasket to take up the space, or fill with RTV like most (definitely not all) modern builders, whichever seems like a better approach.
"I have to shave the faces about .060 and not sure to keep the same or get them same angle as port face."
Faces=intake port flanges?
Sounds like you need to cut it to fit and use RTV on the front and rear china walls.
Rich H.
Esse Quam Videri
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Re: Hemi intake fit
[Re: cudaman1969]
#2789857
06/27/20 01:09 PM
06/27/20 01:09 PM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
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I Live Here
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Okay.
As best I understand, there shouldn't be any perceptible gap between the intake manifold and the cylinder head anywhere on the intake port flange.
A really rough test--if you lay the manifold on the heads without gaskets, and can get (just for instance) a .004" or so feeler gauge between the parts, it should be corrected, the gasket probably isn't going to take up the difference.
If .004 won't fit, gently try .002......you don't want any gaps
Rich H.
Esse Quam Videri
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Re: Hemi intake fit
[Re: cudaman1969]
#2790017
06/27/20 06:25 PM
06/27/20 06:25 PM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
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I Live Here
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It's clear the Gen 2 heads were adapted to the wedge block back in the day, it's definitely not a clean sheet of paper design.
Are these iron heads?
I feel the angle should be checked and corrected, but without a print I don't know what it should be.
These deals lead right into becoming a classic Mopar parts hoarder just to have extra junk to mock up with, and observe (if the same problem exists with 2 or 3 sets of heads, and they all have the same angle.... then we can assume it's probably not the heads).
But......with three intakes/one set of heads showing the same issue, it seems we've headed down that road far enough already with intakes instead.
If they're angle milled, then I would think there would probably be some major changes made for pushrod clearance. How does that look?
Rich H.
Esse Quam Videri
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Re: Hemi intake fit
[Re: cudaman1969]
#2790027
06/27/20 06:56 PM
06/27/20 06:56 PM
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Joined: Oct 2006
Posts: 596 Mass.
80fbody
mopar
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mopar
Joined: Oct 2006
Posts: 596
Mass.
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I ran into this on a small block that was cut quite a bit. If you bolt to one head without a gasket, you can measure top/bottom of other side with feeler gauges. Then you can do the math to subtract the gaskets and divide by two. That’ll tell you roughly how much top/bottom edge you want Angle milled on both sides to bring it closer to alignment. Was easier for me than bringing them the motor at the time.
Last edited by 80fbody; 06/27/20 06:58 PM.
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Re: Hemi intake fit
[Re: cudaman1969]
#2790063
06/27/20 07:45 PM
06/27/20 07:45 PM
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Joined: Jan 2003
Posts: 3,504 DFW
mr_340
master
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master
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Posts: 3,504
DFW
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Right along that bottom edge is the gap. I can rock it so one side is tight and of course it opens up more on the other. All three stock manifolds do the same. Heads do not look like they’ve been cut but the deck has, do S/S racers angle cut the deck? A lot of SS Hemi heads have the intake face cut more vertical to reduce the port CC volume. The rules are you cannot cut into the valve cover bolt holes, so they angle mill the intake faces on the heads more on the deck side to avoid cutting into the v/c bolt holes. A photo of what you have should explain things better. I have an old set of SS heads and they came with wedge shaped spacers to fill the gap. You can see the gap to the china wall at the deck surface in the attached photo on a "Walcott" engine.
Floyd Lippencott IV
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Re: Hemi intake fit
[Re: Cab_Burge]
#2790077
06/27/20 08:02 PM
06/27/20 08:02 PM
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Joined: Jan 2004
Posts: 8,249 fredericksburg,va
cudaman1969
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OP
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Posts: 8,249
fredericksburg,va
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Zippy, if the heads are milled it’s on the intake side since the bottom is where the gap is, bolt holes are opened up larger than stock (66 iron heads) pushrod holes in block are reamed out bigger to. Cab, do you think it’s on purpose or just milling off? I was thinking because the manifold is aluminum and head iron maybe when bolted down and heated it might square up?? Really the only Chrysler engine with two different materials (other than the 6/barrel). I do like the bolts going straight down, it pulls the intake into each head instead of trying to pull to each side like the 440. Whatever way I do the milling it’ll be .020 more than the gasket I use to even up the ports.
Last edited by cudaman1969; 06/27/20 08:04 PM.
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Re: Hemi intake fit
[Re: dragon slayer]
#2790381
06/28/20 04:06 PM
06/28/20 04:06 PM
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Joined: Jan 2004
Posts: 8,249 fredericksburg,va
cudaman1969
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Agree, but I bought another block and 2 heads today I’ll so push that stuff to the side for now. Actually two, a 66 and a mega. Probably sell that block now
Last edited by cudaman1969; 06/28/20 04:09 PM.
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Re: Hemi intake fit
[Re: cudaman1969]
#2790575
06/29/20 07:25 AM
06/29/20 07:25 AM
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Joined: Jun 2014
Posts: 1,321 VA
dragon slayer
pro stock
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pro stock
Joined: Jun 2014
Posts: 1,321
VA
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Interesting approach, but don't be surprised if you still have some issues to work through. I purchased a 66 and MP block package a few years ago. Getting ready for assembly. Been interesting working through the issues you find, unfortunately sequentially. Luckily, I have access to a mentor, and plenty of parts, tools and machinery and examples to work with. While major machine work, done at local shops, I got to deck my heads, and block, calculate all the specific blue print info. Was surprised to see how far off stock stuff was, but the mentor was not.
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Re: Hemi intake fit
[Re: cudaman1969]
#2790676
06/29/20 02:38 PM
06/29/20 02:38 PM
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Joined: Jan 2003
Posts: 17,844 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
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Posts: 17,844
S.E. Michigan
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if the heads are milled it’s on the intake side since the bottom is where the gap is If either the block or head deck surface were tipped/cut at an improper angle, the same issue wouldn't exist? Okay
Rich H.
Esse Quam Videri
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