Outer Limits 4x4 Board

hi all have been looking at rebuilding/ replacing the 1hdt even with a different engine type ( 1hd-ft / 1hd-fte) but it just seems too expensive for my likeing.


have been looking at chev v8 diesels and have found a fully rebuilt 5.7 for $2000 and a fully rebuilt 6.2 for $2500. i do understand that i will need a adaptor and clutch and misc items but all up i feel i could do it for around $5000 ready to go. i will be putting a big turbo on it also. i will be doing the work myself.


i have searched in here and a few other sites for heaps of different info on these conversions, there is heaps on the 6.2 but stuff all on the 5.7. the thing that has me is it seems 50 to 50% like or disslike the conversion.

i would like to hear from people who have done it (not turbo but just the engine itself) and their thoughts on it. is it just too damn heavy, is it (to a point) bang for buck, does it just guzzle the diesel? basically anything as at this point it really seems viable cost wise.

cheers mark.

Fully rebuilt for 2-2.5k doesn't sound right to me??

The chev 5.7 was an oldsmobile motor and they are not what i would call reliable...they have problems with their fuel pumps that make them hunt, and other issues with heads etc...this is all second hand info, so have a good look around....even the chev v8's have problems till the newer 90's desert storm blocks....a friend bought a 6.5 turbo 80 series for 13k all up drive away...that would be the cheapest way to get one...

chunks wrote:Fully rebuilt for 2-2.5k doesn't sound right to me??

i do agree.
i have looked at them before and have seen that price (know where to find em) but one has receipts the other has not mentioned it.

cheers mark

dow50r wrote:The chev 5.7 was an oldsmobile motor and they are not what i would call reliable...they have problems with their fuel pumps that make them hunt, and other issues with heads etc...this is all second hand info, so have a good look around....even the chev v8's have problems till the newer 90's desert storm blocks....a friend bought a 6.5 turbo 80 series for 13k all up drive away...that would be the cheapest way to get one...

cheers for that.
but at 13 k id rather buy just the engine (1hd-ft / 1hd- fte)

cheers man for the info.
mark.

multi valved yota motor would be a better option , atleast when touring or just traveling, parts /repairs would be a hell of alot easyer with the yota motor than the chev

even brighty off of here said he would only buy a car with it done and not fit one himself


a mates auto shop have had to finsih off about 3 from were other shops could not have finished the job off properly and all 3 had already spent of the 10 g mark before it got to the mates workshop

he took one of the owners for a run in a multi valve yota , the bloke was so impressed at the power. performance of the yota he sold his truck n boght a multi valved yota

the offroad power is awesome but onroad is lacking compared to a multi valve yota

go take a toyota for a test run and see what you think ,carnt hurt to try

yeah i know all this but the multi valves are just a rip off. i do not want to pay the rediculas prices they are asking, and its actually not easy to find them.

i have the sahara so im not willing to sell it to have a multivalve gxl. im also more than capable of fitting whatever into the 80 without a workshop doing it so massive money will be saved there. i have driven a few multivalves and do agree on the power and smoothness hence why i was looking at upgrading to one in the first place.

cheers bud
mark

mud4b wrote:yeah i know all this but the multi valves are just a rip off. i do not want to pay the rediculas prices they are asking, and its actually not easy to find them.

i have the sahara so im not willing to sell it to have a multivalve gxl. im also more than capable of fitting whatever into the 80 without a workshop doing it so massive money will be saved there. i have driven a few multivalves and do agree on the power and smoothness hence why i was looking at upgrading to one in the first place.

cheers bud
mark

take the gearbox too if you ever have the chance, it will help with plugins, but they are also SOOOOO much nicer to drive the 100 box vs the 80 box... its like so smoooooth

Brisbane tuning dynoed a 1HDT-FT and got over 200HP at the rear wheel with 0ver 1000 ft?lb of torque from one. It was intercooled.

A mate had a 60 Series with a V8 Chev. Money was not an option and the story went like this

5.7 then rebuild then

6.2 then

6.5 then

6.5 Supercharged

then got dusted and towed by a a mates 308 MQ wagon at Straddie in the sand and then

sold it and then bought

Multivalve 80 series

I haven't oned one but I have driven a few. I am not impressed with them.

the common wisdom on the 6.2's is NO forced induction; the guts of the motor just isn't made to take any more air than it can suck in by itself. the 6.5 is a different story but they are priced accordingly. unless you have a 6.5 turbo you are going backwards in power/torque. consider also the low useable rpm of the V8's means you may need to regear to make it driveable at highway speed.

a V8 conversion is not economical unless you don't value your time, there is so much fiddly stuff to do to get it looking and working well, and even if you value your time cheaply, you will not get out of it cheaper than fitting a toyota motor. you could have a 1HZ, turboed and intercooled for $10k, bolt in, and more than adequate power, and far more driveable than the direct injection motors, the 1HZ makes buckets of torque right off idle.

I'm not sure what is dead on your 1HD-T? if you are willing to invest time, is it a rebuild option? did it throw a big end? if all you really need is a rod and a crank, it could be economical to save?

cheers

DD

Do NOT look at the 5.7 diesel, they were just a 350 petrol block hastily converted to diesel back in the oil crisis of the late 70's... Many issues as Andrew touched on, related to keeping all the extra compression in with only the same head studs as the petrol. You will find some info if you look hard enough.

The 6.2 is also an old engine nowdays, I wouldn't look at anything less than a 6.5, which can be powered up if required.

Also look at gearing changes as the Chev diesels don't rev as hard, and like to cruise much lower than the Toyota. Places like Brunswick Diesels will change the diff gears to 3.7's.