harbormaster
10-31-2004, 10:13 AM
What Spark plugs do you use in your 502 Big Block Chevy and
Why?
scott snider
10-31-2004, 11:26 AM
I run my boat in fresh water so i dont need a stainless body like the MR43T.So i run a Champion RV15YC4 it dosn't have a stainless body, but the plug has an extend tip which gives you a slight bit more power,runs cooler at higher engine speeds and hotter at lower engine speeds which helps keep the plugs from fouling at idle. i have run these in 502's and 454's.
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