Re: Water pump mods with Holley accessory drive
If you are installing a 4L80e and use the Holley/Hooker crossmember, I have a warning :
The instructions are not thoroughly checked out. They designed this crossmember with a stock 1st gen subframe sitting in their shop. With no floorpan installed. I talked with a Holley technician today.
You cannot install the crossmember because you can't get the bolts in! The floorpan is in the way.
Since there is no clearance above due to the floorpan, you will have to weld nuts onto the top of the crossmember so you can insert a bolt from underneath and tighten it.
I did this but didn't have time to try to install the crossmember after doing this modification.
I have to go back to work and will report back in a week or so.
68 Camaro convertible, 6.0 LQ4 with LS3 heads, Vintage Air, 750 street demon carb, eddy perf rpm, GM hot cam, Hooker headers, 4L80e, 12 bolt, 3.55 gears