any brand plug is fine. depends on what you want to spend on your spark plugs.
.050 95 Z28 only came with 5.7 LT1 motor.
Caca
To change the spark plugs in a 1993 Z28 with an LT1 engine, first, ensure the engine is cool and disconnect the battery. Remove the ignition coils and their mounting bolts to access the spark plugs. Use a spark plug socket and ratchet to carefully unscrew each old plug, then install the new plugs, ensuring they are properly gapped. Reassemble by replacing the ignition coils and reconnecting the battery.
fireing order 18436572
could be a bad spark plug or bad plug wire.
Use any platinum plug brands really don't matter
I just opened the Chiltons 1993-98 Repair Manual and it says the proper gap for the spark plugs should be .035 for the LT1 (VIN P)!!!! The gap on the 3.4L is .045!!!!! I know I have seen .050 before for the LT1 so I would double check with GM before setting the gap?
It is on the drivers side front, closet to the radiator( the first spark plug).
Bad spark plug or wire? Bad Valve or piston? (do a compression test)
To change the spark plugs on the passenger side of a 1995 Camaro Z28, first, ensure the engine is cool and disconnect the negative battery cable. Remove the intake duct to gain access to the spark plugs, then carefully detach the spark plug wires by pulling them straight off the plugs. Use a spark plug socket and ratchet to unscrew the old plugs, then install the new plugs, tightening them to the manufacturer’s specifications. Finally, reconnect the spark plug wires and the intake duct before reconnecting the battery.
.42-.45 might also try going to autozone or napa. they will tell you.
so far i have found the split fires to work good