joes68340s
Well-Known Member
I am looking for the correct plug to run in the 380 hp crate motor. Not sure if I have correct ones now.
What plug was recomended for 380 hp crate motor
- Thread starter joes68340s
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Evan Dutch
Well-Known Member
What are you using now?
joes68340s
Well-Known Member
3924 autolite
Evan Dutch
Well-Known Member
What's the heat range? How do those plugs look after you've ran them? If they're dark (fouled) gradually increase the heat range. If the engine starts detonating lower the heat range slightly.
skizzo
Fubar Emeritus II
Those should be fine, 3924, 5524, etc.
rc12yc Champion is what came in a friends 380 crate .
joes68340s
Well-Known Member
ok Thanks
A lot of people prefer Autolite-3923
1 step colder than the ones you have now.
1 step colder than the ones you have now.
joes68340s
Well-Known Member
I was planning on the colder plug I get some dieseling on shut down.
Walker434
Well-Known Member
I run 3923 in my magnum and it's basically a 380 horse crate clone. It seems to like them
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