I guess with LT77 + V8 you'll be having to fit a defender front end? The LT77 and R380 (even with stubby bell-housing) are 100mm longer than a series box so with an 88" series, the rear prop-shaft is to short to take 100mm out, so you have to move everything forward 100mm, this means no more series front end.
I've looked into this in the past, and there's no getting away from it. So for mine I have a 3.9 Serp V8 with standard late S3 gearbox and Fairey overdrive, I've been running it for years like this with no issues.
There is more to the adapter kit than just the adapter plate it's self when fitting a V8 to a Landy gearbox. Depending on the conversion kit, (mine is a Phillips Milner) you also have a spigot adapter that bolts on the crank and usually have to grind about 10-15mm off the end of the crank.
I've looked into this in the past, and there's no getting away from it. So for mine I have a 3.9 Serp V8 with standard late S3 gearbox and Fairey overdrive, I've been running it for years like this with no issues.
There is more to the adapter kit than just the adapter plate it's self when fitting a V8 to a Landy gearbox. Depending on the conversion kit, (mine is a Phillips Milner) you also have a spigot adapter that bolts on the crank and usually have to grind about 10-15mm off the end of the crank.
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MattMatt
Active Member
Well I'm running a 3.9 non serp with a defender LT77. Yes the rear prop is short and I had to create a cut-out in the gearbox cross member for the front prop but I haven't changed the front end at all. I use a 200tdi rad with an electric fan, took off the engine fan and cut the front of the water pump pulley stub so it didn't hole the rad, made up some new engine mounts and some new g/b mounts so it sat as far forward as possible and it has been like that for ages. I did have to trim the gearbox spline and make up a special bush. Oh... and get a remote oil filter as the front axle can crash into the original position very easily AND the exhaust manifold is a very tight fit on the drivers side AND you have to cut and make the passenger side footwell narrower to make way for the other manifold
Finally the exhaust was a bitch to make. I'm sure this has been covered before in various forums - do a search. I seem to remember Satancom did a brill write up on this over on Landrover UK.
Finally the exhaust was a bitch to make. I'm sure this has been covered before in various forums - do a search. I seem to remember Satancom did a brill write up on this over on Landrover UK.
V8jon
Well-Known Member
Recently put a defender lt77 box and 230 transfer in my 88" 2a V8,its a tight fit but it does go.
you'll need the series to v8 adaptor plate plus the modified spigot bush (input shaft spigot on the LT77 is same diameter as series),if the V8 flywheel has been drilled to take a series clutch all you need is a tdi clutch to match the splines on the LT77 input shaft.
All you need to do then is bolt the box to the engine and then fit them
you'll need the series to v8 adaptor plate plus the modified spigot bush (input shaft spigot on the LT77 is same diameter as series),if the V8 flywheel has been drilled to take a series clutch all you need is a tdi clutch to match the splines on the LT77 input shaft.
All you need to do then is bolt the box to the engine and then fit them
groenendael
Active Member
I initially had the series 11a gearbox mated to rover v8 3.5 with 9.5 clutch plate and series pressure plate.via a Phillips Milner adaptor ring
I have now replaced the series gearbox with a stubby r380 5 speed.via the same adaptor.
My qestion is what clutch and pressure plate and clutch slave cylinder do I need in order for everything g to work properly.
I have searched and made phone calls ,but to be honest am still none the wiser.
with regard to solving the problem. I trust that someone will be able to enlighten me .
Any help really appreciated.
I have now replaced the series gearbox with a stubby r380 5 speed.via the same adaptor.
My qestion is what clutch and pressure plate and clutch slave cylinder do I need in order for everything g to work properly.
I have searched and made phone calls ,but to be honest am still none the wiser.
with regard to solving the problem. I trust that someone will be able to enlighten me .
Any help really appreciated.
jamesmartin
Well-Known Member
r380 300tdi clutch and slave cylinder id guess
groenendael
Active Member
Much appreciated. Thanks.
300bhp/ton
Well-Known Member
People run 80” V8 coilers with much shorter props.
Hi, I found this post from searching in google. I am after an adapter to fit an LT77 onto a 3.9 serp V8. Where did you get yours made?
