MGBV8 Carl Floyd Kingsport, TN (4514 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: MGB GT LS1
Use a pre-gov't LS engine , Jacques. ;)
BTW, looks like Jim's measurement pic uses the Corvette batwing oil pan. Not sure that one willl work on our conversions. All the other factory pans will be a bit deeper. [ls1tech.com] |
Keith Keith Tanner Grand Junction, Colorado (92 posts) Registered: 10/31/2008 01:45AM Main British Car: For the purpose of this forum, 1972 MGB GT 5.7l Chevrolet LS1 |
Re: MGB GT LS1
I know I could have put the engine and trans in my car without so much surgery, but I wanted to address some other aspects of the car. Still, I didn't touch the firewall at all in my '72. Here's an early test fit with an unmodified engine bay other than removed motor mounts.
Keep in mind there are a number of other options for the accessory belt setup. The one from the Cadillac CTS-V is close to the block (closer than an F-body) and drops the alternator down close to the oil pan. The Coyote is certainly larger - DOHC heads will do that for you. |
BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6470 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: MGB GT LS1
Looks really good!
But why do people cut them up if it fits without doing it? I don't understand. I mean in Keith's case I get it, also Jim S., but otherwise? I always take a minimalist approach to that part. Make the body mods as simple and easy as they can be to get the minimum space needed. Otherwise you start running into all sorts of other problems. Jim |
MGBV8 Carl Floyd Kingsport, TN (4514 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: MGB GT LS1
Of course, the T56 barely fits the MG late tunnel. Keith's mockup has no bellhousing. That is probably the biggest issue, cause I would stick with a 5 speed.
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Keith Keith Tanner Grand Junction, Colorado (92 posts) Registered: 10/31/2008 01:45AM Main British Car: For the purpose of this forum, 1972 MGB GT 5.7l Chevrolet LS1 |
Re: MGB GT LS1
I'm sorry to hear the T56 won't fit. I'd better go fix my car :) One thing to note is that a T5 is going to have a shifter about 3.5" further forward in my experience, which would not improve the shifter location.
Here's the trans about 1.5" below the final location with the bellhousing removed. I forgot, I did have to take part of the firewall out in front of the gas pedal. Oddly enough, this area isn't used on a LHD car, I suspect it's more useful in a RHD setup. I basically mirrored the right side. I had to add an access panel for the reverse lockout solenoid and rework the very top of the tunnel a bit. You can see the biggest cut in this picture. With my oversize Hurst shifter, I had to open up the hole for the shifter but the stock one in this shot would have fit fine. Access panel, Hurst shifter |
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TXS67BGT jay musgrove low country (15 posts) Registered: 11/16/2008 10:12AM Main British Car: 1967 MGB GT 1998 LS1 |
Re: MGB GT LS1
here are a couple of pictures of the LS1 & 4L60E i put in my 67 BGT. I moved the engine much further aft than shown because I wanted to, not because I had to, took lots of measurements and did a bit of studying just to think about what could be done. I didn't use the stock frontend but I did a trial fit, with allthread thru the mounting holes and the front end, the front end would get within .250 inch before touching the oil pan. meaning minimal trimming to the crossmember. plenty of clearance with the inner fenders and hood, tunnel would need minor trimming but perfectly doable
Edited 2 time(s). Last edit at 11/22/2012 12:04PM by TXS67BGT. |
MGBV8 Carl Floyd Kingsport, TN (4514 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: MGB GT LS1
Thanks, Jay.
Now Keith, I didn't say the T-56 wouldn't fit. It is very snug compared to a T-5 in a late tunnel. Probably won't fit an early tunnel, though. I really need to do something with my engine before the Omaha Meet. Y'all are killin' me with these pics! |
cgill Chris Gill Salmon Arm, British Columbia (129 posts) Registered: 08/13/2009 12:06AM Main British Car: 1979 MGB roadster Buick 300 stroker with EFI |
Re: MGB GT LS1
Oh my god. I want to do an LS1 swap sooo badly now! Especially with a miata suspension.
Nice work guys. |
mgb260 Jim Nichols Sequim,WA (2464 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: MGB GT LS1
The LS4 found in FWD(5.3 and 300HP) uses the small V6 bellhousing. The only problem is the starter is mounted on the transverse FWD transaxle and no provision for block mounting. The Pennock's Fiero forum has some uniqe solutions for the starter. Also the LS2 intake and lifters are used to eliminate the DOD(displacement on demand). The water pump should be changed also as the FWD is offset to the side. There is an adapter to use the big block Chevy water pump(stock or electric aftermarket). The larger throttle body and better flowing intake on the LS2 may boost the power up to 325HP. Edelbrock makes a couple of intakes for the carb guys or for the aftermarket TBI. The heads on this little motor are the same as the LS6 and the sleeves are thick and can be bored out to fit the 5.7 pistons. Plus the junkyard prices are cheap because it hasn't been as popular because of the starter issue. I thought about making a block plate with starter mount and using the 2.2 Chevy S10 bellhousing like they do with the Cadillac 4.9 to convert to RWD clutch. You would have to use a heavy duty clutch because the stock 4cyl/V6 clutch will slip under the power. Spec,Ram and Zoom have those.
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bsa_m21 Martin Rothman Vancouver, Canada (216 posts) Registered: 01/06/2009 11:41AM Main British Car: 1980 TR7V8 Rover 3.9L |
Re: MGB GT LS1
Now this engine is the baby you "really need to have" in a small British sports car...... :)
[www.gmhightechperformance.com] M. Edited 1 time(s). Last edit at 11/23/2012 09:26AM by bsa_m21. |
socorob Robbie La (173 posts) Registered: 09/17/2009 04:42PM Main British Car: 1963 Sunbeam Alpine Series 2 Ford 2.8 V6 |
Re: MGB GT LS1
Now someone needs to make an installation kit for rubber bumper Bgts. Motor, trans mount, headers with basic instructions on where to cut.... Hmmmm I might start keeping my eye out for a rolling Bgt shell.
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