V8 Engine Swap in my 76 XJ6C

So I am now ready to start the Corvette TPI install in my XJ6C. I come to find out the oil pan has to be replaced with a non Corvette 305 or 350 camaro or truck oil pan because the Corvette oil pan will not clear the steering rack or crossmember. I found a pair of interjag engine swap motor mount bases at wrecking yard but they seem to be too short and the angle is also not lining up with engine motor mounts. So my friend is modifying the interjag mounts to fit. I have ordered the new engine harness from Helm in Michigan, I should be receiving it by end of this week so I can get started installing it this weekend.

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Cool Be sure to post some pics on your progress? What tranny are you using?

The leadig suppliers of GM to jag mounts are jaguar Specialties and Johns cars. others in the
older days.

Can you post pictures. Mine came from johns cars and fit just right. but, attach to the block a bit differentlly. More forward and thusly, the engine is further back.

Altering the pan is not beyond doable if needed Mine did not need any. but, my power is LT1.

Read jaguar Specialties web site. Similat conversions there by the owner. Andrew Weinberg… Good guy. always helpful…

Carl

yes pics please!
good luck with the swap
as mentioned above i have used John’s cars for a carb 350 chebby conversion many moons ago and andrew’s kit for an ls1 swap recently.
both good kits.
Andrew always answered the phone if i had a question
is the TPI platform still being supported?

JAY_COOLE
January 9

yes pics please!
good luck with the swap
as mentioned above i have used John’s cars for a carb 350 chebby conversion many moons ago and andrew’s kit for an ls1 swap recently.
both good kits.
Andrew always answered the phone if i had a question
is the TPI platform still being supported?


I have gotten price quotes for engine swap kit for a Corvette TPI from both Jaguar Specialties and John’s Cars. Jaguar Specialties $1,600 and John’s Cars $2,000. I have gotten a quarter breed conversion kit from John’s in the past and it was a breeze to install, it took all of 6 hours, which John said it would take if you have backyard mechanic skills which I do. The Chevy transmission really woke up the Jag from a lazy and slow off the line take off compared to the BorgeWarner transmission. My 87 XJ6 has been much more enjoyable to drive ever since the tranny swap. I did the swap in 2009. As for the V8 conversion on my XJ76COUPE I haven’t decided who’s conversion kit I will get.

Jag Angel

Bill_James
January 8

Cool Be sure to post some pics on your progress? What tranny are you using?


I will be using the 700R4. I have not decided yet whether to get John’s Cars or Jaguar Specialties conversion kit. John’s is $2,000 and Andrew’s is $1,600. But leaning towards John’s due to I have read good things about his kits, but the cons as well regarding getting him to return calls or getting a hold of him for support. I must say though , that when I got the quarter breed conversion kit from John in 2009 for my 87 XJ6 he was available every time I called and he provided great support / technical advice when I needed it. I will post pictures once I have purchased the kit and get started on the conversion.

Jag Angel

that low 1st gear in the 700r4 makes a big difference!

And not to forget the nice cruise in OD!!!

Jay:

Check out the inventory of the parts provided in each of the two kits.

As i recall, Johns kit left the car more jaguar, and Andrew’s made it more GM…

I did get some stuff from Andrew as well

I got my help from Mike at Johns cars. he may or may not be there anymore.

FAX was my best way of reaching Johns cars…

interesting idea. i never sat down to compare both kits side by side.
been probably 10yrs since i used a “johns” kit.

and as for the FAX, that goes hand in hand with the '80’s TPI conversion, no? lol! :laughing:

I have always wanted to see what would happen if someone took their time with an XJ6C and carefully installed a 6.2 liter Supercharged engine that fits in the ZR1 complete with an 8-speed transmission. (This can be ordered directly from Chevrolet for $29.100.76) this is a “plug and cruise” arrangement. All you need is the proper driveline, transaxle, and suspension to drive it.

Beyond that, the brakes should be carbon/ceramic ventilated discs because you are going to have 200+ mile-per-hour Jaguar XJ6C that will outperform anything even remotely like it on four wheels.