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Merlot566jka · 06-08-2012

Hey guys, how does the lt5 get its crank trigger pulse for the icm?

If its a pressed on disc around the crank, look at GMs 3400,3500 v6 engines. They have a large inner diameter wheel with the 24x wheel pressed onto the center of the crank. This is in the same place as the old 2.8/3.1 crank reluctor wheel. The significance is that the old cranks had the grooves for the reluctor machined into the crank, but the newer wheel can be pressed on over these old machined marks.

Now take this info and use it as you will, but I have a good feeling that GM kept things universal in some aspects. I would bet that if the lt5 has a machine 9x reluctor or a pressed on reluctor on the crank, that the outside diameter of this part onthe crank is around 5.75". Anyone know if this is true?

06-08-2012	#15
Merlot566jka Join Date: Jun 2012 Location: Norman, oklahoma Posts: 10	Re: LS1b (411) PCM Swap Hey guys, how does the lt5 get its crank trigger pulse for the icm? If its a pressed on disc around the crank, look at GMs 3400,3500 v6 engines. They have a large inner diameter wheel with the 24x wheel pressed onto the center of the crank. This is in the same place as the old 2.8/3.1 crank reluctor wheel. The significance is that the old cranks had the grooves for the reluctor machined into the crank, but the newer wheel can be pressed on over these old machined marks. Now take this info and use it as you will, but I have a good feeling that GM kept things universal in some aspects. I would bet that if the lt5 has a machine 9x reluctor or a pressed on reluctor on the crank, that the outside diameter of this part onthe crank is around 5.75". Anyone know if this is true?