LSA Question

Dan the man said

Sounds like a awesome modification and not expensive either

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Mine is starting to add up. Non GM valve springs and retainers. Then I got 1.72:1 Scorpion roller rockers, 7/16" rocker studs with guide plates and hardened pushrods to be compatible with the guide plates. I also will be paying the machine shop to drill and tap for the studs and mill the casting to lower the height for rocker clearance with the roller rockers. Then there is cutting the seats about 0.100" larger diameter for the bigger valves. Our problem in Canada is the about 1.35 exchange rate on the money.
You do not have the exchange issue and should be able to use springs from the General. If you could find a low mileage LS at a wrecker and they have a head sale, just grab the heads. Then strip the valves, springs, retainers and keepers out. The LS are not hard on valves. Many 6.0l engines have 400k km or 250k miles on them and the heads have never been off. That makes those parts very inexpensive. Then just seats as required and the valve guides. The General uses press in cast iron guides that seem to last and may be less expensive, but the reports I hear say the bronze are better.
Just a few thoughts to ponder.