MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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ex-tyke
Graham Creswick
Chatham, Ontario, Canada
(1015 posts)

Registered:
10/25/2007 11:17AM

Main British Car:
1976 MGB Ford 302

authors avatar
Re: LS4 Into an MGB
Posted by: ex-tyke
Date: June 03, 2015 09:44AM

Quote:
....increases the odds of making Indy

Hang in there Scott - we're all rootin' for ya!


mgb260
Jim Nichols
Sequim,WA
(1894 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: LS4 Into an MGB
Posted by: mgb260
Date: June 03, 2015 05:16PM

Scott, Almost there! Can you replace the bolts you ground with pan head Allens? I would use hardened washers under the heads.


Capt'n Moorgone
Mike Moor
Angola,IN
(110 posts)

Registered:
11/20/2008 07:05PM

Main British Car:
1973 MGB 300 Buick

authors avatar
Re: LS4 Into an MGB
Posted by: Capt'n Moorgone
Date: June 03, 2015 08:55PM

Great news Scott! Some times all the planets line up for you. Hope to see you in Indy.


Scott68B
Scott Costanzo
Columbus, Ohio
(521 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: LS4 Into an MGB
Posted by: Scott68B
Date: June 03, 2015 09:50PM

Thanks Graham, Jim, and Mike! Just to be clear, both Artie and I will be in Indy car or no car. Our wives will even be there for a short time. It's such a fun event and the people are first class! Wouldn't miss it! Not to jinx anything but the car is where I hoped it would be at this point so I'm optimistic it will be ready too.

Jim, I'm not quite sure I understand your question. The picture I took shows the back of the flywheel and you're looking at one of the pressure plate bolts before any grinding took place. One of the starter bolts just happened to occupy the same place that the pressure plate bolts do. What bolts are you referring to?


mgb260
Jim Nichols
Sequim,WA
(1894 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: LS4 Into an MGB
Posted by: mgb260
Date: June 04, 2015 08:59AM

Scott, I didn't see the shiny spot by the ring gear and assumed the pressure plate bolt heads were rubbing. Looking forward to your first test spin!


74ls1tr6
Calvin Grannis
Elk Grove,CA
(1142 posts)

Registered:
11/10/2007 10:05AM

Main British Car:
74 TR6 / 71 MGB GT TR6/Ls1 71 MGB GT/Ls1

authors avatar
Re: LS4 Into an MGB
Posted by: 74ls1tr6
Date: June 08, 2015 03:24PM

Scott,

Photo's of 98 S70 Volvo fan with relay! Photo's should give you an idea of dimensions, that maybe can work with your application.

About 17 1/2' width across furthest.
2015-06-08 07.22.33.jpg

2 speed relay!
2015-06-08 07.22.48.jpg

Mounting would need some spacer away from radiator for fan blade...maybe 1/2"
2015-06-08 07.24.41.jpg

Total from out most fan blade center to fan motor is 3 3/4" or less
2015-06-08 07.24.01.jpg


74ls1tr6
Calvin Grannis
Elk Grove,CA
(1142 posts)

Registered:
11/10/2007 10:05AM

Main British Car:
74 TR6 / 71 MGB GT TR6/Ls1 71 MGB GT/Ls1

authors avatar
Re: LS4 Into an MGB
Posted by: 74ls1tr6
Date: June 08, 2015 03:31PM

2015-05-29 14.26.59.jpg



rficalora
Rob Ficalora
Willis, TX
(2511 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: LS4 Into an MGB
Posted by: rficalora
Date: June 08, 2015 07:23PM

That's the same fan & relay pack I'm using. It's never even gone to high speed even in Texas heat with the A/C on. I can definitely recommend it if the Lincoln one won't fit.


Scott68B
Scott Costanzo
Columbus, Ohio
(521 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: LS4 Into an MGB
Posted by: Scott68B
Date: June 09, 2015 06:36PM

Thanks for the suggestions Calvin & Rob. Calvin, I'll be in touch with you next week.

Artie was in and we had a great time as usual. I really want to thank him for all his help! He's a really good friend and a great guy. We got a lot of work done on the car. We didn't get it out on a long run like we hoped but we are very close now. We did do a short first run and got a couple of videos showing it. Here is the drive by.



The car is still rough in this video but it was very fun getting it out even for a few minutes. Can I officially call this a V8 car now?

As I said, we got a lot of work done. The throttle pedal is in and adjusted, the PCM is installed permanently, the new fuel pump is finally installed and the radiator ducting is well on it's way to being complete. I have a distinct lack of pictures and I apologize for that...just too busy working to get things done. I didn't even get a picture of Artie!

I still have a few things to do besides completing the radiator ducting:

o Fix a pesky leak at the thermostat housing
o Adjust the tach for the V8 (the PCM actually puts out a 4 cylinder signal I'm told)
o Put the interior back together and clean things up
o Do a bunch of minor tasks here and there

Here is the current state of the engine bay as of last night.

LS4EngineBay.jpg

I'm very hopeful for the meet. It seems like the odds favor the car being ready for Indy unless something major goes wrong. It will NOT be "done" at all. There will be incomplete things that will need to be redone. Everything I'm doing now is just to make it as reliable as possible. I really need to get it out on the road and put a few hundred miles on it. Hopefully next weekend.

Scott


74ls1tr6
Calvin Grannis
Elk Grove,CA
(1142 posts)

Registered:
11/10/2007 10:05AM

Main British Car:
74 TR6 / 71 MGB GT TR6/Ls1 71 MGB GT/Ls1

authors avatar
Re: LS4 Into an MGB
Posted by: 74ls1tr6
Date: June 09, 2015 07:35PM

Was that a BIG GRIN on your face Scott when you drove by :)


BWA


(309 posts)

Registered:
04/13/2010 08:13PM

Main British Car:


Re: LS4 Into an MGB
Posted by: BWA
Date: June 09, 2015 07:53PM

Scott that is pretty awesome!! You are just about ready to run with the "big boys" now.
If I ever do another project it might be an LS4 in to a TR4 or TR4a. You are blazing a path for others to follow.
Thanks for the detailed thread on this topic.

Cheers
Byron


MGBGT?
Artie Clark
Huntington Station, New York
(18 posts)

Registered:
05/01/2014 02:14PM

Main British Car:
1978 MGB Roadster Rover 3.5L V8

authors avatar
Re: LS4 Into an MGB
Posted by: MGBGT?
Date: June 09, 2015 08:30PM

Scott, thanks for allowing me to participate in your build experience. It's a pleasure working with you. Hang in there. When I'm back in 5 weeks, we'll finish up the important details you haven't gotten a chance to address & I'll do the detailing of the car for you. After all, she must look her best.
I thought we fixed the leaky thermostat?



Edited 1 time(s). Last edit at 06/09/2015 08:31PM by MGBGT?.


Scott68B
Scott Costanzo
Columbus, Ohio
(521 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: LS4 Into an MGB
Posted by: Scott68B
Date: June 09, 2015 08:52PM

I'm still grinning Calvin! :)

Thanks Byron, it's fun to share it with fellow car guys. Oh, I took your advice and adjusted the throttle cable support so the angle isn't so severe.

Artie, yeah, so did I. I looked after we started it yesterday morning and it's leaking slightly again. I'ii try to tighten it again to see if that helps. If not its on to plan B. :)


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5564 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: LS4 Into an MGB
Posted by: BlownMGB-V8
Date: June 09, 2015 09:42PM

Great to see Scott, and yes definitely official. I imagine you'll be giving a few rides at Indy.

Jim


rficalora
Rob Ficalora
Willis, TX
(2511 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: LS4 Into an MGB
Posted by: rficalora
Date: June 09, 2015 11:13PM

Can't wait to see it. I'll be in line for the rides at Indy :)



mgb260
Jim Nichols
Sequim,WA
(1894 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: LS4 Into an MGB
Posted by: mgb260
Date: June 09, 2015 11:57PM

Scott, Wow! Cool!


rficalora
Rob Ficalora
Willis, TX
(2511 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: LS4 Into an MGB
Posted by: rficalora
Date: June 10, 2015 12:19AM

By the way... talk about a sleeper. Looks totally stock. Even looked like single exhaust - or at least both exiting the left side. You are going to surprise a lot of folks :)


74ls1tr6
Calvin Grannis
Elk Grove,CA
(1142 posts)

Registered:
11/10/2007 10:05AM

Main British Car:
74 TR6 / 71 MGB GT TR6/Ls1 71 MGB GT/Ls1

authors avatar
Re: LS4 Into an MGB
Posted by: 74ls1tr6
Date: June 10, 2015 07:26AM

Scott,

That is correct about your Tach being switch to a 4 cylinder. This is what mine is set to. We are both using the same computer.

Is your engine hunting for idle as soon as your car starts rolling? In one of your video's, I though thats what I heard?

We could maybe fix that in your tune!


Scott68B
Scott Costanzo
Columbus, Ohio
(521 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: LS4 Into an MGB
Posted by: Scott68B
Date: June 11, 2015 08:08AM

Thanks everyone. Jim B., I hope I can give some rides next month.
Quote:
Is your engine hunting for idle as soon as your car starts rolling? In one of your video's, I though thats what I heard?

Calvin, I didn't think that was happening but you could be right. Keep in mind that the video was taken on Friday afternoon before most of the work was done. We replaced the fuel pump and updated the wiring in the tank as well early on Sunday. When we started it for the first time after all the work on Monday morning, just before Artie left, it ran like a different engine. We're still very early into the sorting out phase. I will keep everyone informed. Please keep the comments coming, I appreciate your insight!


MGBV8
Carl Floyd
Kingsport, TN
(3431 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: LS4 Into an MGB
Posted by: MGBV8
Date: June 11, 2015 09:32AM

Gonna be a hoot!


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