Author Topic: 5.7 Hemi into 70 Barracuda (Read 22273 times)

heminut · « **on:** August 06, 2008 - 02:56:57 PM »

I've had a couple of requests for the part numbers used in my 5.7 hemi swap into my 70 Barracuda so here's where I'm at so far;

TTI headers part #TTI 57HC-C4 $718
TTI engine mounts part #MM57BE $133
Charlies oilpan $400
XV Motorsports intake manifold part #11-2102 $499
MSD Hemi6 controller part #MSD-6013 $498.60 (Summit)
MSD Hemi6 wiring harness part #MSD-88863 $200 (Summit)(for carb application with early style coils)
SRT 6.1 Hemi cam & spring kit $189.99 (Henson Motorsports sells these on Ebay)
Taylor short plug wires, not sure of part #, usually sell on Ebay for $60

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 oil filter will not work in the stock location and on the B&E bodies you can use the Jeep adapter part #53021610-AE if you can find one! If not, you can use a remote filter mounting kit (mandatory on A bodies) such as Summit's part #SUM-G4985 for $34.95. My 5.7 is from a 2003 Ram pickup, and I will be using the stock serpentine drive system with the stock accessories. The alternator can easily be wired for a stock Mopar electronic two wire voltage regulator, and I will have a new end crimped on the hemi power steering pressure line to fit my stock steering box. I will also be using the stock 5.7 clutch fan setup. If you don't want to use the A/C compressor you can get an A/C compressor delete pulley part #53032131-AA from Mopar. It's kind of pricey, but makes for a clean looking setup. If you don't plan on running power steering you can use a shorter Gates K70776 belt and move the lower idler pulley to the position below the A/C compressor to do away with the P/S pump. You will also have to run an electric fuel pump with the carb setup on the new hemi as there is no provision on the engine for a mechanical pump.

Post any questions you might have and I'll answer them best I can. I don't have any pics right now, but will try to post some with updates as I move along on this project.

'Cuda Hunter · « **Reply #1 on:** August 06, 2008 - 09:03:01 PM »

Thanks for the information. I will be checking back in regularly and I will post some questions when I have some.

ChallengerGary · « **Reply #2 on:** August 09, 2008 - 10:00:44 AM »

Thanks for the info. How far along are you in the swap?

heminut · « **Reply #3 on:** August 10, 2008 - 01:01:44 PM »

I've got most of the stuff I need, I'm just waiting on XV Motorsports to get me my intake manifold. I called them a couple of days ago and now 2 months seems to have changed to 3 months!!!!

If Mopar Perf. hadn't jacked the price of their intake up so high I would have gone that route by now. If XV doesn't get me a manifold by the end of the month as they said they would I'm seriously considering going with the Edelbrock dual four intake and a couple of Edelbrock carbs! The real bummer is that XV has had my $500 for over two months now!

71chally416 · « **Reply #4 on:** August 10, 2008 - 01:57:17 PM »

Good info! Keep it coming. The new Hemi will be my next street motor.

hotrod98 · « **Reply #5 on:** August 13, 2008 - 11:01:56 PM »

Why didn't you just use the factory fuel injection setup?
I'm either going to use the factory setup on my 5.7 or go with the 6.1 top end stuff. One thing's for sure, the original setup would be by far the least expensive way to go. Just curious.
I used the factory efi stuff with the 5.9 in my wife's cuda and we've loved it. Especially the 29 mpg we got last week on our 400 mile round trip. That truck motor has so much torque that we have to be careful pulling out into traffic sometimes.

heminut · « **Reply #6 on:** August 14, 2008 - 11:34:37 AM »

Quote from: hotrod98 on August 13, 2008 - 11:01:56 PM

Why didn't you just use the factory fuel injection setup?
I'm either going to use the factory setup on my 5.7 or go with the 6.1 top end stuff. One thing's for sure, the original setup would be by far the least expensive way to go. Just curious.
I used the factory efi stuff with the 5.9 in my wife's cuda and we've loved it. Especially the 29 mpg we got last week on our 400 mile round trip. That truck motor has so much torque that we have to be careful pulling out into traffic sometimes.

Several reasons. First off, I like the old school look of a carb and I can deal with tuning carbs but this new computer stuff is a little over my head. It is NOT cheaper for me to run the factory F.I. setup. The cheapest route I found to retain the factory F.I. was to have Street & Performance reprogram the ECM ($300) and either buy a wiring harness from them or have mine modified ($900-$1000). I would also have to put a high pressure fuel pump in the car for F.I. External fuel pump ($200-$300) which would probably have a set lifespan due to no cooling or an in tank setup ($800-$900). Would have to install the electronic 'fly-by-wire' throttle setup (not even sure what this costs) and figure out how to hook up the kickdown linkage for the 727 tranny.

The carb setup costs are; XV manifold ($500) and MSD Hemi6 ignition controller and wiring harness ($700). I already have the Holley carb ($300) and electric fuel pump ($100) and the throttle and kickdown linkage are a breeze to set up.

I'm not overly concerned with mileage as this is my fun car and it doesn't get driven long distances (not yet anyway). As far as performance goes, it has been proven that a properly tuned carb setup actually has a slight performance edge on fuel injection.

Anyway, that's my take on this deal. That's my story, and I'm stickin to it!

thedodgeboys · « **Reply #7 on:** August 14, 2008 - 10:22:14 PM »

sometimes simple is better

Dont ask me how I know...

wart1de · « **Reply #8 on:** August 19, 2008 - 09:30:58 PM »

Excellent information - I am printing off your post now for future reference for when I go to fit my own late model hemi into the Cuda. Definitely worthy of being a sticky thread in my opinion.

As long as I don't hear any bad stories about build quality between now and purchase time, I plan to use the 6.4 mopar crate engine. They're apparently making it so the EFI is plug and play into classic cars so i'll go that route. As far as peak power goes, they state the carb version has 15 more horsepower but 20 less torque so i'd say the EFI is slightly quicker.

thedodgeboys · « **Reply #9 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)

wart1de · « **Reply #10 on:** August 19, 2008 - 11:20:00 PM »

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)

That would be much appreciated. Did you have any problems getting the motor? I read somewhere about 8 months waiting lists?!

heminut · « **Reply #11 on:** August 20, 2008 - 10:54:42 AM »

Well, I wasn't too enthused about running a remote mount oil filter and decided to go a different route. Grasshopper tipped me off that Bouchillon Performance had an adapter like Mopar's (thanks John!) and I decided to bite the bullet and buy theirs, even though it's quite a bit more. Here's a link to the part;

http://www.bouchillonperformance.com/61Oil_Filter_Adapter.asp

and (hopefully) a pic. It's about 3 times what the Mopar part sells for, but cheaper doesn't mean anything if you can't get it. I got the part in and funny thing, it has a pentastar in the casting! It comes with the oil pressure switch shown in the pics and no, they don't sell it without the switch, I asked. In the B&E body swaps you will have to take the switch off and put a pipe plug in the hole, as the switch interferes with the motor mount. You'll also have to take a pipe wrench and remove the threaded sleeve in the block that the original oil filter screwed on to. After that the adapter just bolts on with 3 small bolts. One other thing, the adapter uses a metric thread oil filter! When I found that the stock filter wouldn't fit I went to Car Quest and had a devil of a time trying to find the right filter until we figured out it was metric! I ended up with a Car Quest filter # 85372 which the counter guy said is for late model Fords. Also, Wix makes their filters, so they are good filters. That's all the progress for now.

rallye5.7 · « **Reply #12 on:** August 24, 2008 - 07:33:17 PM »

I'm at the same stage in my conversion,collecting parts, and have printed off whats been said so far.
What have you decided on fuel system. I've been looking at various carb compatible pumps but don't know what has to be done at the tank. Can I simply splice into the existing fuel line or is there other modifications necessary.
I bought the remote oil block off but discovered the crate engine came with the angled adaptor and I'll try to make that work.
I'll be watching for updates.

heminut · « **Reply #13 on:** August 25, 2008 - 05:34:26 PM »

Since I'm going with a carb I don't have to deal with a high pressure fuel system. I will be using a Carter P4594 electric fuel pump and plumbing it in to the stock fuel line. I'll have to fabricate a line to run from the carb down to the fuel line at the frame with a short length of rubber hose between them to allow for engine movement. If you're going to use FI then you will have to go with a high pressure system. In that case I would recommend buying a tank with the in-tank pump setup such as the one XV Motorsports sells. They are kind of pricey, but the in-tank pump setup is probably more reliable. I've heard that external high pressure pumps have a limited life span due to not being immersed in fuel to keep them cool.

rallye5.7 · « **Reply #14 on:** August 25, 2008 - 10:09:24 PM »

392, My swap is also carbed and I was looking at the Holley 12-125 pump. The Carter p4594 is mainly a marine application pump but the price is right. Do you need a regulator with that pump? There is also a Carter performance pump P4701HP (18-20psi, 900lbs\hr@13.5volts, 200-700hp) and does not require a regulator,but I can't get a price on it because it is not marketed in Canada. Anyone want to try to get a price?

Author Topic: 5.7 Hemi into 70 Barracuda (Read 22273 times)

heminut

5.7 Hemi into 70 Barracuda

'Cuda Hunter

Re: 5.7 Hemi into 70 Barracuda

ChallengerGary

Re: 5.7 Hemi into 70 Barracuda

heminut

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71chally416

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hotrod98

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heminut

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thedodgeboys

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wart1de

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thedodgeboys

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wart1de

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heminut

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rallye5.7

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heminut

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rallye5.7

Re: 5.7 Hemi into 70 Barracuda