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#61760 06/15/2006 2:43 AM | Joined: Jun 2006 Posts: 3 Junior Member | | Junior Member Joined: Jun 2006 Posts: 3 | How important is the rings that seal the intake manifold to the head? I have a late 235 and am using a early 235 intake/exhaust and the rings would not fit in the block so I left them out. Now the engine does do run unless 80% choke is used and backfires thru the carb once the choke is pushed in. ????leaking intake manifold??? Do I need a late 235 intake and rings for a correct fit??? | | |
#61761 06/15/2006 5:19 AM | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | I think if you use 216 gaskets you could get away without using the rings. On jobs where I use the 216/early 235 manifold on a late 235 I make bushings to fit in the head to reduce the size so I can use the smaller alignment rings.
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#61762 06/15/2006 3:03 PM | Joined: Jan 2001 Posts: 230 Shop Shark | | Shop Shark Joined: Jan 2001 Posts: 230 | You're using a 216 intake manifold and it'll always leak unless you make up some stepped rings , it is far easier to just get a good used 235 intake manifold , remember the truck intake manifold has a horn mount boss on it drilled & tapped , some car intakes have the boss but it's not drilled and tapped .
How you tighten it up is important too , begin tightening in the center and work outwards .
-Nate
There is no problem so difficult it cannot be overcome by generous application of brute force & ignorance
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#61763 06/15/2006 5:05 PM | Joined: May 2000 Posts: 424 Shop Shark | | Shop Shark Joined: May 2000 Posts: 424 | I've bored the (3) intake ports on lots of 216 intakes from 1.437 to 1.531 to allow the use of the 235 rings. Then everything fits right together. | | |
#61764 06/15/2006 6:17 PM | Joined: Jan 2006 Posts: 586 Shop Shark | | Shop Shark Joined: Jan 2006 Posts: 586 | Barry,what do you use to bore out the ports?What works the best?
Wanted Good Woman:
Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.
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#61765 06/15/2006 8:15 PM | Joined: May 2000 Posts: 424 Shop Shark | | Shop Shark Joined: May 2000 Posts: 424 | I do them on a Bridgeport (milling machine). It should be a pretty simple (inexpensive) deal to have done if you have a good, small, local machine shop or know a buddy with a mill in his basement or garage. Many engine rebuilding type machine shops may not be equipped to do this however, as they usually just have the equipment to bore blocks and do head work. | | |
#61766 06/15/2006 8:47 PM | Joined: Sep 2003 Posts: 1,820 Shop Shark | | Shop Shark Joined: Sep 2003 Posts: 1,820 | Barry is the best!  Joe 
"Truckin' Around .......... Since 1937!" My name is Joe and I am addicted to Classic Country Music. I just can't hep myself.Operators are standing by to take your calls! Now cruising in the Passing Lane | | |
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