yup probally bent a Prod. But there make awsome fuse’s in the stock motors, for exactly what you did. As tons do it, so its not a bad thing.
Your stock setup is still perfectly fine just tourqing down the rockers. Still the “non adjustable” setup. With GM sized parts, the lifter plunger preload in its range. If your tq wrench only goes to 25# just use a deep socket or a 3inch extension (8mm). Just be aware the rocker prod cups are seated in the prod, stock cam isn’t any lift really. But on a lobe nose before the rocker trunnion gets a lined on the rocker stands, The rocker we be a little lose, before it seats and starts a lineing. If you haven’t been thu it 24512345 times, and know how they react in the tightneing process. Just look at whats going on.
04 you have updated LS1 parts so nothing specail to do. Bust be easy on the wires, just pull them off the coils. And leave the plug ends on (have more heat breakdown for removal damage) But its a GTO, super easy to work on, so you can have the heads off in 2 hrs if you wanted. You dont have a guild plate or anything for the prods, but the hole for them on the head castings in small. So you’ll see rub marks about 1/3 down when the bend. I pull them out all the time of cars with no know issues, and they had 1-3 prods bent so bad they were rubbing in the head. this car was running fine. lol
I cheak then by rolling the the surface plate at the shop, but you can use a peice of glass. Clean the oil off, so they have no film.And you can “hear” them wobble (sounds change), and see it.
VavaleCover are 106in. but hand tight with a 8mm nut driver is fine, (fast, and the bolts easy to get =GTO)
Don’t take the coils off the coil brakets. Just take the 10mm coil brakets off the VCs with the coils on them. save time there. thats about it.
FYI, we stock the stock 7.400 Prod lenghts (stronger .083 4130cromoly) sets and singles. And .025 lenths set, up and down. And can adjust the rocker stands for shop builds. But keep the stocks as a fuse for your setup, we have tons of super low milage ones around. I’ll just give you the 1-4 you need. Just call ask for me, or tell matt I said Ill hook up, your form NYspeed :wiggle:
-john