Re: Hemi Conversion Questions
[Re: MN-ScatPack]
#335731
06/02/09 01:10 AM
06/02/09 01:10 AM
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sthemi
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The lower pulley should be OK, Original Hemi's used a thincker balancer on the bottom making a special lower pulley necessary to maintain alignment.The recent production and race motors use the same thickness balancer as the 383/440, so the old pulley should be fine. The bellhousing will work but the starter will not. It will need to be changed out for a RobMc starter or a factory Hemi direct drive. The common starter will not clear the exhaust, that is why the factory used the weird starter. Everyone has a clutch they like, I am using a Ram clutch and Pressure plate, other people like the centerforce or Mc leod...
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Re: Hemi Conversion Questions
[Re: sthemi]
#335732
06/02/09 08:28 AM
06/02/09 08:28 AM
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MLR426
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Your engine was put together using a thick damper then you should use hemi pulleys. Use should get the more common aluminum 10 1/2 clutch and bell housing with a 130 tooth flywheel. Then use a standard starter or light weight mini-starter.
logan426
Last edited by Logan426; 06/03/09 07:50 AM.
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Re: Hemi Conversion Questions
[Re: sthemi]
#335733
06/02/09 08:43 AM
06/02/09 08:43 AM
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JohnRR
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Quote:
The bellhousing will work but the starter will not. It will need to be changed out for a RobMc starter or a factory Hemi direct drive. The common starter will not clear the exhaust, that is why the factory used the weird starter.
direct drive starter will not bolt to the bellhousing he has .
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Re: Hemi Conversion Questions
[Re: JohnRR]
#335735
06/02/09 01:45 PM
06/02/09 01:45 PM
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torkrules
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Quote:
Quote:
The bellhousing will work but the starter will not. It will need to be changed out for a RobMc starter or a factory Hemi direct drive. The common starter will not clear the exhaust, that is why the factory used the weird starter.
direct drive starter will not bolt to the bellhousing he has .
If it came off of the 383 it will work with any of the gear reduction starters. You'll probably want a mini for more clearence.
The flywheel must be an 11" 143(memory lapse?) for this to work. Since your in there, I'd swap it for a steel unit instead of the stock cast iron one. The hemi flywheel for the direct starter is 171 (another memory laps?).
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Re: Hemi Conversion Questions
[Re: Lee446]
#335739
06/03/09 01:28 AM
06/03/09 01:28 AM
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sthemi
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If you are thinking of using the 383/440 flywheel, think again. hemi's have 8 bolt flanges vs 6 bolt and use 1/2" bolts instead of 7/16.
unless your Hemi was built with a 440 crank,(someone would have to do this on purpose and it would create balance problems) the Hemi should have the 8 bolt flange. They will not interchange. Here is a pic of the 383 bellhousing with Hemi Manifolds and Rob Mc starter. The factory gear reduction or mini starter will not clear. If you use the 10 1/2 inch aluminum bellhousing, set up as mentioned you will be able to use common starter and 70-71 Hemi Flywheel.
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Re: Hemi Conversion Questions
[Re: Lee446]
#335740
06/03/09 07:48 AM
06/03/09 07:48 AM
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Quote:
If you are thinking of using the 383/440 flywheel, think again. hemi's have 8 bolt flanges vs 6 bolt and use 1/2" bolts instead of 7/16.
Read his post he said he has a 6 bolt flange.
logan426
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Re: Hemi Conversion Questions
[Re: Hemidavey]
#335742
06/03/09 10:47 AM
06/03/09 10:47 AM
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JohnRR
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All street hemi engines backed by an automatic used the gear reduction starter and its in the same location as the manual, why are you saying it won't clear the exhaust?
I have never compared but I guess the ring gear on a TC is the same size as the 130 tooth flywheel ? I didn't know that the stock gear reduction or the mini wouldn't fit till I was chastised by someone on this board about it ...
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Re: Hemi Conversion Questions
[Re: Jack Zupan]
#335744
06/03/09 06:43 PM
06/03/09 06:43 PM
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torkrules
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Just curious but why would I get a new flywheel? I know the steel one is stronger but I won't be doing anything more than smoking the tires now and again. At least that's my intention. Likewise with the idea of a scattershield, I don't think the engine will go above 6000 rpm so it didn't seem to me that it would be that big of an issue. Am I wrong?
I'm running a stock steel bell housing on mine. By rights I should use a scatter shield but I was trying to keep the outer appearance as stock looking as possible. Because of this I wanted to make sure that everything under the bell housing was very unlikely to blow apart. That's why I went with a steel flywheel and explosion resistant pressure plate.
Incredible centrifugal forces are generated even at idle. The flywheel is about 40lbs and clutch another 15 lbs. You could do the math and figure out the forces, but if they let go they will go through the bell housing and floor and anything else in it's path. At 6000 rpm, nothing short of a scatter shield will stop it.
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Re: Hemi Conversion Questions
[Re: RUNCHARGER]
#335745
06/04/09 12:21 AM
06/04/09 12:21 AM
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sthemi
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I thought the 69 383 and 440 used a normal Chrysler starter? The 66-69 manual Hemi is different but I thought the 383's and 440's were normal. I think at this point you should mock it up with all your 383 stuff on the garage floor and see if the starter clears the exhaust manifolds or headers you have. As usual on Moparts there are 30 different opinions some wrong, some right.
Sheldon
The 383 /440 stuff all works fine until you add the Hemi exhaust, and then you got problems. I did this exact swap on my project and thought I had saved tall dollars on a direct drive starter until I put the manifolds on, then Uth OH.. it dont fit, not even close. And yes the Automatic bellhousing is smaller, like the 10 1/2 inch manual trans sizes and the normal starter will work then..
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Re: Hemi Conversion Questions
[Re: Jack Zupan]
#335748
06/06/09 06:47 PM
06/06/09 06:47 PM
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torkrules
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Quote:
I have just tried to test fit the headers to the engine with the bellhousing and a RobMc starter installed and it didn't fit. The headers are TTI which everyone says fit like a glove. One of the header tubes is hitting on the starter motor body which is much smaller than the standard starter. I don't know what to do next. I was sure everything would fit together. The bellhousing is the one stated above for an 11" clutch and 143 tooth flywheel. I don't want to ding up those headers if I can avoid it. Man am I frustrated right now. HELP!!!!
Somethings a miss. Check everything carefully if everything checks out call TTI. I ran that set up in my Road Runner and never had an issue.
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