gojonnygo said:well i keep coming back to get informatioin on the questions i asked. if you could post the how to and a pick that would be great. i found an efi motor for 150 at the junk yard but passed on it b/c i wanted a rollor and did not know how to do the conversion.
thanks
http://forums.stangnet.com/attachment.php?attachmentid=34134&stc=1
We'll see if the link works, if not there is a pic on page three of the 351w sticky. If it ever disappears email me for another.
I only posted the pic of the dogbone grinding, so I will describe what I did and copy it to the sticky because it really should be there.
I still had all the stock lifters, dogbones, and the spider from my 302. 2 holes must be drilled in the valley floor for the spider. These holes however are just above the cam bearings. If you drill all the way through with the cam in place, you will be buying a new cam and/or bearings. Once the block is stripped mock up where you want the spider to sit. Make sure the spider will contact the dogbones properly. Mark (using a paint pen or scribe) the desired location of the holes. Then drill and tap. Most engines are not flat in this spot however so instead of trying to drill on top of raised lettering you can grind down to a flat surface. This will make it much easier to tap as well. There is no need to drill through to the cam bearings. A short bolt with some thread locker will suffice. If you do drill through, all is not lost. remove any burrs from the cam journal and use a thread locker on the threads of the spicer bolts similar to oil galley plug thread locker/sealer.
The lifters will fit in the bores just fine. I don't think the size ever changed on the Windsor motors.
The most difficult and time consuming part is getting the dogbones to sit flat. This is slow work with a hand dremel. Not taking away enough material or taking away too little will both result in the dogbones not seating properly. The alternative is aftermarket lifters that use tie rods instead of the spider and dogbones.
Do all of the grinding/drilling just after you strip the block bare, and before you take it to the machine shop for bore/hone/clean/inspection. This process will be very messy and there is no way to keep the block as clean as it needs to be.