zz6 motor -- replacement plugs?
April 2nd, 2019, 4:09 PM
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zz6 motor -- replacement plugs?
hey, quick question-- I just dropped a zz6 into an off-road project ('88 jeep Cherokee). Truck runs fantastic, but the boot on the #1 plug is hitting the header. I had originally swapped in a circa '88 350, and had replaced the stock plugs with accel shorty plugs.
I was thinking of doing the same thing here... the motor comes with ACD MR43LTS plugs which, which are (for reasons I can't figure out) a marine plug, with a .67, .68 or .709 reach, depending on which resource you read.
I called accel for advice on a replacement shorty plug, they suggested accel 0414s or 0415s, both of which have a .75 reach...
I've never don't anything other than go with a spec-for-spec plug swap... is the .05 - .07 difference going to extend too far into the cylinder head?
(alternatively I'm looing into doing one of those fabric heat covers for the #1 plug, or maybe ceramic boots)
thoughts appreciated.
I was thinking of doing the same thing here... the motor comes with ACD MR43LTS plugs which, which are (for reasons I can't figure out) a marine plug, with a .67, .68 or .709 reach, depending on which resource you read.
I called accel for advice on a replacement shorty plug, they suggested accel 0414s or 0415s, both of which have a .75 reach...
I've never don't anything other than go with a spec-for-spec plug swap... is the .05 - .07 difference going to extend too far into the cylinder head?
(alternatively I'm looing into doing one of those fabric heat covers for the #1 plug, or maybe ceramic boots)
thoughts appreciated.
