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Ok im stumped, how are any of you running a double roller? It leaves no room for the crank reluctor!
I tried the L-98 TPI single roller everyone said would work but only have 0.042 clearance tooth to tooth:

I also have a Cloyes single roller designed for the LT-1 and the tooth clearance is the same!
I'd hate to reuse the OEM set (56k miles) but I'm at a loss, please help! I need to get this motor back in ASAP! I don't even know what other options there are?
I think .030 is acceptable. I ran a LT4 HD with oversized crank sprocket and only had the thickness of my fingernail for clearance.
You can’t run the reluctor wheel with a double roller. You also need the hub off a ‘95 because it’s longer and will make up for the space of the absent reluctor wheel. It will trigger an SES light so that needs to be tuned out.
I think .030 is acceptable. I ran a LT4 HD with oversized crank sprocket and only had the thickness of my fingernail for clearance.
You can’t run the reluctor wheel with a double roller. You also need the hub off a ‘95 because it’s longer and will make up for the space of the absent reluctor wheel. It will trigger an SES light so that needs to be tuned out.
I'd have to shim it as I already have the ATI super damper. Not sure I like the idea either.
After looking over all 3 Timing sets with the machine shop. We decided the L-98 TPI single roller was the best idea. We couldn't find any issues that would cause fitment problems with the timing cover or opti.
After looking over all 3 Timing sets with the machine shop. We decided the L-98 TPI single roller was the best idea. We couldn't find any issues that would cause fitment problems with the timing cover or opti.
That is the same chain the heavy duty truck and marine vortec engines got. Fits the same way on my 350 Vortec. Works just fine.
No ****? I've never come across a factory single roller. How do they handle ignition on that series? They did away with optispark in 97 right?
Vortec engines never had an Opti. They had a adistributor in the rear like all other SBC Engines. It still had a crank signal from the timing cover like the 96-97 LT1 but it got it's cam signal from within the distributor.
Vortec engines never had an Opti. They had a adistributor in the rear like all other SBC Engines. It still had a crank signal from the timing cover like the 96-97 LT1 but it got it's cam signal from within the distributor.
So they are based more closely to the L-98 then? Standard water flow?
No ****? I've never come across a factory single roller. How do they handle ignition on that series? They did away with optispark in 97 right?
My first single roller was a 1-ton TBI 350 with a flat tappet cam.
Are you guys switching to the single roller setups running electric water pumps?
My current 383 Vortec has a GMPP Single roller behind a Holley Aluminum timing cover with a Fluidamper that was machined by Fluidamper to compensate for the EFI Connection 24x reluctor.
My first single roller was a 1-ton TBI 350 with a flat tappet cam.
Are you guys switching to the single roller setups running electric water pumps?
My current 383 Vortec has a GMPP Single roller behind a Holley Aluminum timing cover with a Fluidamper that was machined by Fluidamper to compensate for the EFI Connection 24x reluctor.
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LT-4 timing set, UH OH! 
