427ci LS2 sleeved, dry sump oil pump, engine build & install, 69 Camaro

[garickman]

Originally Posted by DaleTx

Greg... I tried several different options to try and find valve covers that would clear the T&D shaft rockers. The Katech valve covers are the only ones that even came close to fitting. I started out with their cast aluminum covers... ran them for a while... then bought a set of carbon fiber valve covers. Both sets had to be modified to clear the rockers.

I tried stock LS covers with 1/2 inch spacers, Holley aluminum valve covers, and neither would clear the rockers without major modifications. The Katech covers required the least amount of grinding to fit. I am using GM LS7 heads and the T&D shaft rockers with 1.8 ratio. Not sure exactly what your running.


Here is a shot of the T&D rockers... they come right up next to the rails... Nutter had to modify the rockers and heads slightly just to get some clearance.




Here are some shots of how I modified the Carbon fiber covers for clearance










When I mounted the modified valve covers I pushed them up towards the fuel rails a much as possible... the rubber o-ring seal will end up right on the edge of the lip on the head. It is a very tight fit for sure.. but I was able to modify the covers and make it work.




Hope that answered your question... it's always a pain for the engine builder when they have to do extra work to make things fit. You just don't have a lot of options to clear the T&D 1.8 rockers.

Awesome post Dale, that really helps me out. Thanks for posting so much detail. It's people like you that make this such a great site.