sdrockslangers

I built 2 Gen 4 BBC motors with 177 blower. 3" pulley on the top and 6" on the bottom. What plug is every one running in their motors. I just want to make sure I am in the right range.

Thanks Steve

proboat-wes

ac-mr41t or equal,ran them for years

badluck

I would run NGK R5673-8. I have been using them in blown engines for years.

ezstriper

non resister plugs can wreak havoc on computers/MSD boxes....

MILD THUNDER

iTrader: (3)

Same here.

Griff

Yep, same plug as the Merc 525SC.