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If you’re in America and have access to American wrecking yards. Most Chevy transmission can quickly and easily installed. Several will even have the shifter line up where it should be.
The part that makes it easy is the alignment pins on a Chevy transmission and on the Jaguar V12 are in exactly the same place. You will need to fabricate an adapter. But that is an easy Saturday mornings work.
ask if you’d like a step by step guide.
Well the first thing required is figuring out how thick the adapter has to be. There is a Big variety of transmission that can be adapted and rather than make a endless list, I’ll show you how to measure your self. What you need to do is measure from the face of the bell housing to the end of the pilot shaft.
There is a video on U tube called the camp Chaos Chronicles where Robert Knodt shows you exactly how to measure it. He’s very precise. Plus he fabricated his own bell housing rather than use the Chevy
I’m a little different since it’s actually not a hyper critical measurement. You can be as much as an .125 or an 8th of an inch short as long as you aren’t anything too long. Too long and you shove the crank forward damaging the engine. I always use that 1/8 as safety. Shorter is safe, longer is ruin for your engine.
Then you need to measure from the face of the block to the bottom of the pilot shaft hole in your crankshaft.
Take those two measurements and find out how thick the spacer needs to be. This is what you will wind up making. I cut this on my bandsaw but it can be done with a hand saber saw Simply trace the inside of the bell housing and the outside for its shape. I use thin cardboard as a pattern to start with. The two alignment holes are the only one hyper critical. When you are drilling the holes the bolt holes are slightly oversized. But the alignment holes need to be exactly to size and location. I drill slightly under size and then ream to the final size. Continued
The bolts going into the block will be tapered Allen head counter bores. While the bolts coming from the bell housing will be threaded. Locate them using the cardboard template.
This is a mornings work if you’re comfortable fabricating. If not you can get a machinist to do it for you. Just don’t use the word Jaguar. ( Hotrod will save you a lot of money) you likely will need the machinist to drill out the Jaguar pilot bushing to the Chevy size.
04-16-2020 | 07:53 PM
