Leaderboard

Thanks, madkaw. I might be able to squeeze by with these injectors. I will test them. If they run too rich, I will start looking for a set of cheap smaller injectors. I need to start documenting the progress otherwise I just procrastinate. Last week-end I made the coil bracket out of 2 chevy truck ones (came off LM7 truck), they overlapped nicely to get an idea where to cut/weld together. Fit mock-up, I might need to move it to the right side to align spark plugs better: The coils will be grounded to the bracket to the welded bolt behind, the bracket is bolted on the right side to the cylinder head (black wire, ground to engine block). The coil bank connector will be attached to the same location as where Chevy put it originally (left side, there is a clip between coil 5 and 4). The 1st cylinder's spark plug is too close to the coil, will have to lift the bracket up by 1-1.5 inches to make the spark plug wire fit. I ordered a set of spark plug wires to play around with: And a simple visio wiring diagram for the coil plugs:

Not an expert but it seems like you'll need to remove the head to find the cause. The "wet" test might not fix broken rings. As for head gasket, you could use the chemical test to check for combustion gases in the coolant if you wanted to be more sure. Turbo engines are susceptible to detonation when they're pushed. Detonation can cause drastic damage. Worrying about oil type now seems pointless. Good luck. https://www.oreillyauto.com/detail/c/evertough/rental-tools-evertough-combustion-leak-tester/ren1/67094