Robert Miller
Member
I have a new 406 sbc build, that developed 2 dead cylinders #7 and #4 tried new plugs, wires, went back through the valves, started engine and sprayed water on headers bye the heads and that's how I found the problem, it's a new dart block, forged rotating assembly, 13.1 pistons has a solid roller cam and lifters with afr220 heads, 1.6 roller rockers, engine has been started maybe 6 times since built, I'm stumped and need some advice on what it could be. Thx in advance.