@urah2525 I presume this is the Vortec 4200/LL8 found in various SUVs. Apart from the fact it's not a Jag engine and assuming it will fit under the bonnet, it seems like a decent idea. An aluminium straight 6 DOHC 16v redlining at 6000rpm and making 270 bhp in stock form sounds great. At least initially. However the specs and power output aren't that different from a Jag and the cost of engineering it into an E type and fitting it with a manual transmission are likely to be considerable.
@urah2525 Thinking more about your idea.. The expense of engineering a Vortec into an E type would not be cost effective, especially considering the loss of originality and the screams of sacrilege from the purists. It would not like dropping a short block V8 into a worn out XJ6 SIII (and there are many that say this latter practice is neither cheap or advisable). However if the objective is to build a hotrod, possibly with forced induction and a glassfibre bonnet it could be a fun approach...!
I have got a very good hint for you to keeping the nice old DOHC Engine in good shape with todays ultra dry eco fuels: Use 1:100 API TC two stroke oil / fuel mix as regular driving fuel, that keeps the old fuel-system gaskets, rubber parts, alloy parts etc... and cast iron metal surfaces of those vintage engines in excellent shape...and it also lubricates the valves and upper piston regions. Most Porsche vintage owners in Germany do so :) Also keeps carbs and tank clean and rustfree
The problem with most of the V12s is that they are just too civilised (perhaps I mean quiet?!). The straight 6 is a very classic sound but opened up the 12's can sound glorious, especially when running Weber carbs.
the v12 are good motors as long as they are well maintained, i have a v12 with a missfire because of low compression in some cylinders from it being overheated, mostley caused from neglect, the price of a rebuild exceeds the value of the car. it will be replaced with a 454 v8.
i also have a xj6 and a 4.2 e-type project car which i love. i will have videos of them in the near future
Unfortunately the V12s are costly to run, especially if neglected. My mechanic has warned me off on several occasions when I've started to cast an eye on XJSs and the like. Your car will probably go just as well with a V8 and will be a lot cheaper to run. Good luck with the XJ6 (I had one for 5 years and loved it) and your E type: let me know when you put up the videos.
Yes these cats really purr! A race level 4.2L motor will put out about 330bhp at the wheels. Very exotic tuning can produce more. 300 is about tops for a driveable fast road/rally/street car.
PS In the clip above the car was running without a muffler. The street version will have glass packs.
Calling all Jag Nuts -
Wouldn't a GM "Atlas 4.2L I-6 be a perfect replacement engine? IF NOT, WHY NOT?-Pray Tell.
urah2525 7 months ago
@urah2525 I presume this is the Vortec 4200/LL8 found in various SUVs. Apart from the fact it's not a Jag engine and assuming it will fit under the bonnet, it seems like a decent idea. An aluminium straight 6 DOHC 16v redlining at 6000rpm and making 270 bhp in stock form sounds great. At least initially. However the specs and power output aren't that different from a Jag and the cost of engineering it into an E type and fitting it with a manual transmission are likely to be considerable.
wjwmorrow 7 months ago
@urah2525 Thinking more about your idea.. The expense of engineering a Vortec into an E type would not be cost effective, especially considering the loss of originality and the screams of sacrilege from the purists. It would not like dropping a short block V8 into a worn out XJ6 SIII (and there are many that say this latter practice is neither cheap or advisable). However if the objective is to build a hotrod, possibly with forced induction and a glassfibre bonnet it could be a fun approach...!
wjwmorrow 7 months ago
"The most beautiful car in the world"
Enzo Ferrari said on debut of the Jaguar E-Type S1 in 1961
ROCKSOLID19 10 months ago
I have got a very good hint for you to keeping the nice old DOHC Engine in good shape with todays ultra dry eco fuels: Use 1:100 API TC two stroke oil / fuel mix as regular driving fuel, that keeps the old fuel-system gaskets, rubber parts, alloy parts etc... and cast iron metal surfaces of those vintage engines in excellent shape...and it also lubricates the valves and upper piston regions. Most Porsche vintage owners in Germany do so :) Also keeps carbs and tank clean and rustfree
Haffschlappe 1 year ago
The problem with most of the V12s is that they are just too civilised (perhaps I mean quiet?!). The straight 6 is a very classic sound but opened up the 12's can sound glorious, especially when running Weber carbs.
wjwmorrow 2 years ago
the v12 are good motors as long as they are well maintained, i have a v12 with a missfire because of low compression in some cylinders from it being overheated, mostley caused from neglect, the price of a rebuild exceeds the value of the car. it will be replaced with a 454 v8.
i also have a xj6 and a 4.2 e-type project car which i love. i will have videos of them in the near future
VintageSkiDooRacer1 2 years ago
Unfortunately the V12s are costly to run, especially if neglected. My mechanic has warned me off on several occasions when I've started to cast an eye on XJSs and the like. Your car will probably go just as well with a V8 and will be a lot cheaper to run. Good luck with the XJ6 (I had one for 5 years and loved it) and your E type: let me know when you put up the videos.
wjwmorrow 2 years ago
ur mechanic was right!
and i will let you know when i post a vid of my e-type :)
VintageSkiDooRacer1 2 years ago
gotta love the 4.2 :)
wayyy better than the v12!
just my opinion
VintageSkiDooRacer1 2 years ago
Yes these cats really purr! A race level 4.2L motor will put out about 330bhp at the wheels. Very exotic tuning can produce more. 300 is about tops for a driveable fast road/rally/street car.
PS In the clip above the car was running without a muffler. The street version will have glass packs.
wjwmorrow 3 years ago
Sounds beastly, absolutely love classic British cars.
How much power can you squeeze out of a NA built up 4.2?
paulmerz 3 years ago
Thank you, scheese!
wjwmorrow 3 years ago
Very cool
scheese 3 years ago