[Gmecm] Vortec & LT1 crank sensors

[Dave Jones]

The Vortec reluctor wheel is exactly the same part as what's on the OBDII 
LT1's.
The crank sensor is nearly identical, but has a different part number due to 
having the connector being straight, instead of at a 90? angle.

All the Vortec stuff will fit just fine on a regular SBC.  I cut about .100" 
off the dampener hub with a lathe to account for the extra thickness of the 
reluctor.  Only problem I had was with a GM 8" dampener that wouldn't work, 
since the back edge of the dampener's outer ring laid back so far that it'd 
hit the sensor body.  With a small stock dampener, or a Fluiddamper or 
similar aftermarket piece, there's plenty of clearance.  Also a dual roller 
chain won't quite fit with the 4X reluctor.  The GMPP 1/2" single roller 
fits fine, as would a stock timing chain.


HTH,

Dave Jones
'96 Impala SS
'83 Trans Am ZZ4 TPI
'89 Turbo T/A # 1291
'97 Z28
Fort Irwin, CA



----- Original Message ----- 
From: "William Lucke" <william.lucke at highspeedlink.net>


> How does this compare to an OBD-II LT1 setup?
> All I know about the LT1 setup is that it has a crank sensor wheel on the 
> front of the engine inside the timing cover as well.
>
>
> Will
>

>>----- Original Message -----
>> >
>> >>From: "Andrew G." <gmecm at 4usapride.com>
>> >> Can someone direct me to a good reading source (online or print) about 
>> >> the
>> >>Vortec v8 with crank and cam sensors?  Curious if the reluctor is cast
>> >>onto the crank or could be retrofitted onto traditional SBC.