[QUAKE_WARS]

I have a 99 or 00 motor from a 4dr Tahoe. I really think its a 99.
I have come over from NastyZ28 forum to find out whats really going on.

I have heard several times about the front timing cover being different
and something about a ring on the crank behind the timing cover. this is the
best pic I got of the motor.



I pulled the motor straight out and put all the bolt on's I needed. and
dropped it right in. Is this not going to run?? Was i suppose to pull my
timing cover off for something?? Please help!

[QUAKE_WARS]

Anybody??

[eric32]

I have the same vortec in my truck right now and you don't have to take your timing cover off the motor to get it running if your not using any electronics and just running a hei distributor. The vortec 350 has a plastic timing cover. On mine there is a spot of what looks like its for the crank sensor for the timing on whatever vehicle it came out of. But its not hooked up and does not need to be taken off to run. I am running a hei and the same carb your using and it runs fine. Post some more info on what your using for ignition wise.
Eric

[cobalt327]

Originally Posted by QUAKE_WARS

I have heard several times about the front timing cover being different
and something about a ring on the crank behind the timing cover.

There is a "ring" for the crank position sensor to use for reference. It does not need to be removed.

If your plastic timing cover still has the sensor in place, you can leave it- otherwise you will need to plug the hole. If you do not have a sensor in the cover, then you also do not have the ring on the crank- but either way it does not matter to the engine whether or not the ring is there. It will run the exact same way, with or w/o the ring.