When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have a GM crate motor, an LS3 376, in my 1967 Nova and I'm having a hard time finding the part number. I'm hoping that this is the right place to ask other LS3 engine owners. It has a smooth pulley and is held on by one bolt. There is a number on the back, 2395264, but it doesn't match any part number.
I got the car with the crate motor already installed, and it has a March pulley set in it. The tension in those photos is the exact one I have.
I emailed March and they wrote back it was a Dayco 89338, but that is clearly not the same as it has 2 bolts and the pulley is ribbed.
I emailed Dayco and sent them pictures of the pulley but I'm still waiting to hear back from them. The closest pulley I have found was this
Help identify this tensioner pulley?
