Author Topic: 5.7 Hemi into 70 Barracuda (Read 22275 times)

thedodgeboys · « **Reply #15 on:** August 25, 2008 - 10:36:55 PM »

I cant find that carter pump but what about this one for $100.00 http://store.summitracing.com/partdetail.asp?autofilter=1&part=SUM%2DG3136&N=700+%2D42057+%2D128243+115&autoview=sku

I would also spend a little extra cash and run a regulator.

heminut · « **Reply #16 on:** August 26, 2008 - 10:30:09 AM »

I don't like the Holley pumps because they are NOISY! I've never used a Carter, but in bench testing this one it seems to be a lot quieter than the Holleys. If you're using any pump that puts out more than 7-8 psi you'll probably need a regulator.

rallye5.7 · « **Reply #17 on:** August 31, 2008 - 09:18:45 AM »

Maybe its the lack of mechanical knowledge but I am confused.

Heminut you wrote

"Those are the parts I've acquired so far. I'll be using a smallblock TF727, which bolts right up to the hemi. The 5.7 hemi 4 bolt flexplate will work if you have a machine shop cut the starter ring gear off of it (you use the ring gear on the 727 torque converter) and elongate one hole for the offset bolt on the converter, or you can use MP's flexplate part #P5153753"

The Mopar installation instructions says

Torque converters
Torque converters with a neutral balance must be used. It is recommended that a torque converter with an even bolt pattern be used.The converter should also have the starter ring gear removed and be neutrally balanced Modification may be necessaryto mount the aftermarket converters to the 5.7l flexplate. Flexplate has been designed for a 10.75" converter.The following Ram Torque Converter and Flexplate can be purchased separately.
5.7L Ram
04736587AB (Ram Torque Converter)
52104048 (Ram Flex Plate)

My confusion is that you say to cut the ring gear off the flexplate and Mopar wants to remove the ring gear from the converter ?

I also have the starter off a Hemi truck and wonder if its going to bolt up to the 727 and block and will it engage the ring gear mounted on the flexplate or converter? What starter are you using?

The instructions also say that the engine was supplied with a production Flexplate but doesn't give the part#

Can you help me out??

thedodgeboys · « **Reply #18 on:** August 31, 2008 - 10:59:18 AM »

Forget all that junk sorry� its old info and poorly written instructions.

For a smoother install

Order the mopar flex plate P5153753 made to bolt the 727 to the new hemi using the old style torque converter with no weights welded to the converter.

Use a starter out of a 92 dodge � ton with a 5.2 or something similar. I don�t know if your starter will work on the driver�s side. The new hemi�s are on the passenger side.

good luck!

rallye5.7 · « **Reply #19 on:** August 31, 2008 - 12:09:27 PM »

Thanks for the reply, ---- so this means I can use the Torque converter thats in the car now (360-727) and make sure it has no external weights on the converter?

thedodgeboys · « **Reply #20 on:** August 31, 2008 - 03:19:50 PM »

With the corect flex plate yes.

heminut · « **Reply #21 on:** August 31, 2008 - 11:24:55 PM »

Quote from: thedodgeboys on August 31, 2008 - 10:59:18 AM

Forget all that junk sorry� its old info and poorly written instructions.

Use a starter out of a 92 dodge � ton with a 5.2 or something similar. I don�t know if your starter will work on the driver�s side. The new hemi�s are on the passenger side.

That's correct, those are old instructions that were incorrect. As for the starter, stop and think about it. If you are using a TF727 and the starter bolts to the TF 727 bellhousing then it stands to reason that the starter would work with the ring gear on the torque converter as originally designed. Also, the mini starters that are used on the 5.2 and 5.9 Magnum engines work just fine in this application. I believe if you use the TTI headers it's the only starter that will work with them.

rallye5.7 · « **Reply #22 on:** September 01, 2008 - 08:22:21 AM »

Thanks guys I appreciate the responses. Back to parts scrounging.

thedodgeboys · « **Reply #23 on:** September 01, 2008 - 08:35:46 AM »

[quote author=392heminut link=topic=48028.msg499508#msg499508 date=1220239495
As for the starter, stop and think about it. If you are using a TF727 and the starter bolts to the TF 727 bellhousing then it stands to reason that the starter would work with the ring gear on the torque converter as originally designed. Also, the mini starters that are used on the 5.2 and 5.9 Magnum engines work just fine in this application. I
[/quote]

Sorry I should have clarified

I do not know if the 5.7 starter you have will work on the driver�s side 727 mounting location.

Quote from: greatwn73 on August 31, 2008 - 09:18:45 AM

I also have the starter off a Hemi truck and wonder if its going to bolt up to the 727 and block and will it engage the ring gear mounted on the flexplate or converter? What starter are you using?

heminut · « **Reply #24 on:** September 01, 2008 - 02:50:48 PM »

My bad! I didn't catch the part where he said he had the starter off of the hemi truck!

I have no idea if the original hemi starter would work, and I didn't get the original starter with my hemi so I have no way to compare them. I didn't even know that the starters were on the right side on the new hemis! I did check the bellhousing on the tranny that came with my hemi just now, and it has a similar starter bulge on BOTH sides leading me to believe that different applications may have the starter on different sides!

rallye5.7 · « **Reply #25 on:** September 01, 2008 - 10:15:11 PM »

OK here's what i found, the nose on a regular 727 starter is longer and goes further into the bell housing. The hemi starter is shorter which makes sense if its contacting the ring gear on the flex plate not the converter.

Mini starter it is then.

Moparal · « **Reply #26 on:** September 02, 2008 - 02:16:02 AM »

Quote from: greatwn73 on August 31, 2008 - 12:09:27 PM

Thanks for the reply, ---- so this means I can use the Torque converter thats in the car now (360-727) and make sure it has no external weights on the converter?

Can you fix your avitar? I wanna view your car without the slide bar. I like the color

360 'CUDA · « **Reply #27 on:** September 02, 2008 - 03:24:59 AM »

This is about as big as you can get without getting the dreaded bars. You can use this one if you want to

wart1de · « **Reply #28 on:** September 03, 2008 - 01:43:30 AM »

Quote from: thedodgeboys on August 19, 2008 - 09:48:09 PM

wart1de
I will let you know on sunday about how easy the plug and pray is.(I will be starting my motor for the first time)

Hey mate,

How did you go with the new hemi?

heminut · « **Reply #29 on:** September 03, 2008 - 08:40:26 PM »

Well, I found out something today that I haven't seen come up in any discussions about puting these engines in older cars. There are 2 bulges on the block flange for the oil pan rail at the back on the left side with holes drilled and tapped in them. They only stick out about 1/2" but will keep the mini starter from bolting up and need to be ground down flush with the rest of the block flange. I got my engine set in yesterday and went to put the starter on today and found this!

Fortunately I had room (barely) to get in there with a sawzall and cut the bulges off or I would have been pulling the header on that side!

Author Topic: 5.7 Hemi into 70 Barracuda (Read 22275 times)

thedodgeboys

Re: 5.7 Hemi into 70 Barracuda

heminut

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rallye5.7

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thedodgeboys

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rallye5.7

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thedodgeboys

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heminut

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rallye5.7

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thedodgeboys

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heminut

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rallye5.7

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Moparal

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360 'CUDA

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wart1de

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heminut

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