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Need help looking at these hemi head gaskets #471824 09/18/09 03:15 PM 09/18/09 03:15 PM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	I got the heads off and I see some things that don't look right. Is it normal for the gasket to block off the two water jacket passages (circled in red)? I had a local expert build the engine and this is the first time I've seen this. And what kind of gasket is this? The only marking is 001 in the middle of the gasket. What's a good composite gasket to put back on? I've got aluminum heads with 10.25:1 comp. The engine has about 200 miles on it. Can you tell from looking at the deck if the gasket was leaking? I had an oil leak that seemed to be coming from under the headers but could never trace it to it's origin. Thanks for the help

Re: Need help looking at these hemi head gaskets [Re: DLP4] #471825 09/18/09 09:11 PM 09/18/09 09:11 PM
Joined: Mar 2003 Posts: 337 the netherlands 3 383duster super street
383duster super street 3 Joined: Mar 2003 Posts: 337 the netherlands	if this engine has only 200 miles on it after the build-up then i think you got a lot of oil passing the rings or valve seals, your pistons are very dirty in my opinion, something is not right!

Re: Need help looking at these hemi head gaskets [Re: 383duster] #471826 09/18/09 09:25 PM 09/18/09 09:25 PM
Joined: Apr 2007 Posts: 951 Temperance, MI P prochargedhemi super stock
prochargedhemi super stock P Joined: Apr 2007 Posts: 951 Temperance, MI	I don't believe there should be holes there for coolant. if you are having an oil leak it could be two areas, 1. the front/rear corners of the intake(it will run down the bottom of the cylinder head and look like the head is leaking) 2. the head could very possibly (and probably) is leaking usually from the oil returns

Re: Need help looking at these hemi head gaskets [Re: DLP4] #471827 09/18/09 09:32 PM 09/18/09 09:32 PM
Joined: Oct 2004 Posts: 16,480 Canada CrAzYMoPaRGuY I Live Here
CrAzYMoPaRGuY I Live Here Joined: Oct 2004 Posts: 16,480 Canada	Bottom holes blocked, not unusual. The size of your coolant transfer slots up top? UNUSUAL! What kind of gaskets are those? The transfer slots are as big as any I have ever seen! CrAzYMoPaRGuY

Post deleted by Defbob [Re: 383duster] #471828 09/18/09 09:42 PM 09/18/09 09:42 PM
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Re: Need help looking at these hemi head gaskets #471829 09/18/09 09:50 PM 09/18/09 09:50 PM
Joined: Apr 2007 Posts: 951 Temperance, MI P prochargedhemi super stock
prochargedhemi super stock P Joined: Apr 2007 Posts: 951 Temperance, MI	dang fred totally forgot about that. very good eyes for such an old man

Re: Need help looking at these hemi head gaskets [Re: DLP4] #471830 09/18/09 10:27 PM 09/18/09 10:27 PM
A Anonymous Unregistered
Anonymous Unregistered A	i hate to say it, but that engine looks more like it traveled more than 40,000 miles. is there a reason your "expert" hemi engine builder won't fix that? oh, i almost forgot, can you post a picture of the top of the valve cover please...

Post deleted by Defbob [Re: prochargedhemi] #471831 09/18/09 11:00 PM 09/18/09 11:00 PM
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Re: Need help looking at these hemi head gaskets #471832 09/19/09 12:48 AM 09/19/09 12:48 AM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	Thanks guys Is the Fel Pro 1106 a good choice for a head gasket? Is it possible to tell from looking at the deck or old gasket if there was an oil leak from the heads? Quote: I don't believe there should be holes there for coolant. I was wondering because there is a passage for coolant to pass thru on the head and on the block in those locations. The gasket is blocking the passage Quote: Bottom holes blocked, not unusual. The size of your coolant transfer slots up top? UNUSUAL! What kind of gaskets are those? The transfer slots are as big as any I have ever seen! I checked email from the builder and they are Fel Pro 1106. I went to Jegg's website and they show a picture of my gasket for that part number Quote: wanna bet it's sucking oil thru poor intake fitting gaskets. you should be able to see that in the port Intake ports look clean. no oil Quote: ioh, i almost forgot, can you post a picture of the top of the valve cover please... Last edited by DLP4; 09/19/09 01:11 AM.

Re: Need help looking at these hemi head gaskets [Re: DLP4] #471833 09/19/09 01:49 AM 09/19/09 01:49 AM
Joined: Aug 2003 Posts: 43,309 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,309 Bend,OR USA	You need to figure out where the oil in the cylinder tops is coming from, rings, valve seals ? Oil contamintion in the cylinders will cause detonation at WOT and even at part throttle under the right conditions, it is also losing HP with that much oil in the cylinders Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Need help looking at these hemi head gaskets [Re: Cab_Burge] #471834 09/19/09 02:38 AM 09/19/09 02:38 AM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	Quote: You need to figure out where the oil in the cylinder tops is coming from Probably from all the spark plug changes I had to do. Everytime you pull the plugs on the stock design hemi head oil dumps into the cylinders. The Holy 4150 carb was assembled backwards (p-valves & jets)from the factory and I had a lot of trouble with flooding and fouling until I figured out what was going on. Changed the plugs about a half dozen times. Not sure if that' the only problem but certainly contributed. When I finally had a chance to run it hard I bent the valves Last edited by DLP4; 09/19/09 02:40 AM.

Re: Need help looking at these hemi head gaskets [Re: CrAzYMoPaRGuY] #471835 09/19/09 11:15 AM 09/19/09 11:15 AM
Joined: Jan 2003 Posts: 75,095 A Banana Republic near you. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,095 A Banana Republic near you.	Quote: Bottom holes blocked, not unusual. The size of your coolant transfer slots up top? UNUSUAL! What kind of gaskets are those? The transfer slots are as big as any I have ever seen! Those holes are blocked on all big block gaskets , so yes it's normal. The transfer slots are as big as the ORIGINAL steel shim gaskets in my 383 , Someone changed them, I do not know when, to the narrow slot , maybe that happened when the wedge blocks went from single hole to the figure 8 hole ? Last edited by Johnahah; 09/19/09 02:53 PM.

Post deleted by Defbob [Re: DLP4] #471836 09/19/09 11:44 AM 09/19/09 11:44 AM
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Re: Need help looking at these hemi head gaskets #471837 09/19/09 12:14 PM 09/19/09 12:14 PM
Joined: Aug 2003 Posts: 43,309 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,309 Bend,OR USA	Quote: Quote: Quote: You need to figure out where the oil in the cylinder tops is coming from Probably from all the spark plug changes I had to do. Everytime you pull the plugs on the stock design hemi head oil dumps into the cylinders. The Holy 4150 carb was assembled backwards (p-valves & jets)from the factory and I had a lot of trouble with flooding and fouling until I figured out what was going on. Changed the plugs about a half dozen times. Not sure if that' the only problem but certainly contributed. When I finally had a chance to run it hard I bent the valves THAT'S WHY THEY MAKE THESE Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Need help looking at these hemi head gaskets [Re: JohnRR] #471838 09/19/09 12:40 PM 09/19/09 12:40 PM
Joined: Oct 2004 Posts: 16,480 Canada CrAzYMoPaRGuY I Live Here
CrAzYMoPaRGuY I Live Here Joined: Oct 2004 Posts: 16,480 Canada	Quote: Quote: Bottom holes blocked, not unusual. The size of your coolant transfer slots up top? UNUSUAL! What kind of gaskets are those? The transfer slots are as big as any I have ever seen! those holes are blocked on all big block gaskets , it's normal , the transfer slots are as big as the ORIGINAL steel shim gaskets in my 383 , someone changed them I do not know when to the narrow slot , maybe that happene when the wedge blocks went form single hole to the figure 8 hole ? I heard, though I don't present it as actual FACT, that the transfer slots got really small to try to keep the temperatures up for emissions purposes, the idea was to get the engine to run hotter. True? I have no idea. I just put FelPro head gaskets in my Jensen's 440, they had the small slots, and I opened the slots up myself. I have never modified a head gasket in my life, but decided I wanted to try it. CrAzYMoPaRGuY

Re: Need help looking at these hemi head gaskets [Re: CrAzYMoPaRGuY] #471839 09/19/09 12:59 PM 09/19/09 12:59 PM
Joined: Mar 2006 Posts: 2,675 Mt. Eden Ky. Hemi Allstate master
Hemi Allstate master Joined: Mar 2006 Posts: 2,675 Mt. Eden Ky.	Here is a look at the Cometics, for comparison. Sorry it doesn't show the whole gasket. Mark 5492267-CopyofHPIM2570.JPG (38 downloads) 1996 Ram 1500 Sport 1968 road runner 1952 Sears Allstate licensed, pump gas, Hemi 5.98 @ 115.73 1.33 60 ft. The best is yet to come. Painless Performance / Street RODDER magazine Top 100 for 2019

Re: Need help looking at these hemi head gaskets #471840 09/20/09 09:07 PM 09/20/09 09:07 PM
Joined: Mar 2005 Posts: 123 usa D DLP4 OP member
DLP4 OP member D Joined: Mar 2005 Posts: 123 usa	Quote: THAT'S WHY THEY MAKE THESE That looks like it would solve the problem. Do I need to machine the head to install these?

Re: Need help looking at these hemi head gaskets [Re: DLP4] #471841 09/20/09 09:14 PM 09/20/09 09:14 PM
Joined: Mar 2006 Posts: 2,675 Mt. Eden Ky. Hemi Allstate master
Hemi Allstate master Joined: Mar 2006 Posts: 2,675 Mt. Eden Ky.	No, but they are a tight fit. Mark 1996 Ram 1500 Sport 1968 road runner 1952 Sears Allstate licensed, pump gas, Hemi 5.98 @ 115.73 1.33 60 ft. The best is yet to come. Painless Performance / Street RODDER magazine Top 100 for 2019

Re: Need help looking at these hemi head gaskets [Re: DLP4] #471842 09/20/09 09:22 PM 09/20/09 09:22 PM
Joined: Nov 2003 Posts: 2,715 closer to Canadian beer! torkrules I'm neurotic
torkrules I'm neurotic Joined: Nov 2003 Posts: 2,715 closer to Canadian beer!	Quote: Quote: THAT'S WHY THEY MAKE THESE That looks like it would solve the problem. Do I need to machine the head to install these? Nope. Put them in the freezer for a few hours and hammer them in. I still get a little oil when I pull the plugs but not nearly as much as without them. It depends to the how tight the tubes fit (tube diameter/O ring size, etc.) Those gaskets look like the one MP uses on their older crate motors. During the the later days of Cummins (crate motor assemblers) they would spray them with a Hi Tack or some other type sealer (red) because they had a notorious propensity to leak coolant out all four corners as well as from the oil return passages. Cometics work great to prevent these problems, but they need a particular finish on the block and heads. If your going to take it apart again, it may be worth your while to re surface the block and heads for the cometic. I used them and sprayed them with Hylomar blue and I have absolutely no leaks. Is this a crate motor? Some of the other areas that the old crate motors were bad for were loose guides, and piston to cylinder clearance being all over the map (both cases cause excessive oil consumption)as well as the decks not being cut straight. Something to check.

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