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ase_master327, Shop Owner
Category: Chevy
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Experience:  +15 years experience with Chevrolet. Bumper to bumper diagnosis & repair.
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What is the best kind of spark plugs to use in a 350 5.7 litre engine

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what is the best kind of spark plugs to use in a 350 5.7 litre engine to get the best performance?
Submitted: 7 years ago.
Category: Chevy
Expert:  ase_master327 replied 7 years ago.
Plain old regular Delco R42TS non most engines. Don't waste your time or money on the platinums and such.. The ignition system was not designed for those fancy spark plugs. Besides all you need is a spark. When it comes to something so simple.. .there is no advantages from any manufacturer. They have multi electrode plugs.. which might help.. but under those temperatures, and pressures in the cylinder at ignition... the slightest bit of spark would ignite the mixture anyways. If you want to do anything to the ignition system, get a hotter coil and fatter ignition wires.. This will mostly only help the system last longer.
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