lt4 afr 220 what spark plugs ??
Thread Starter
Registered User
Joined: May 2001
Posts: 1,046
From: Farmington Hills mi.
lt4 afr 220 what spark plugs ??
just putting my 396 together and i`m wounding wicth spark plugs to use its a 95 lt1 396ci with lt4 220 afr heads and i will be useing a 150 shot
if you need more info let me no
if you need more info let me no
Last edited by BIGCOWL-IMP; Apr 18, 2004 at 09:33 PM.
Registered User
Joined: Oct 2001
Posts: 14
From: Pacific Ocean
try looking at AFR's
under the head that you have it usually state's what spark plug you should start with. It's under the Specifications, Features, and Supporting Components
under the head that you have it usually state's what spark plug you should start with. It's under the Specifications, Features, and Supporting Components
Last edited by SSideways; Apr 18, 2004 at 01:43 PM.
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Registered User
Joined: Oct 2001
Posts: 14
From: Pacific Ocean
WOW!!! BIGCOWL-IMP
I see you would rather take Joe's word instead of AFR's website which says to use the AR3910, Nah just playing with ya!!!
hope it works out for you cause I've been trying all types of plugs. the latest is the rapid fire #5 which seem to work OK for now, I've also used NGK's and AC delco's (fr3ls,fr4ls) and will soon be trying the Autolite AR3910's.
I see you would rather take Joe's word instead of AFR's website which says to use the AR3910, Nah just playing with ya!!!
hope it works out for you cause I've been trying all types of plugs. the latest is the rapid fire #5 which seem to work OK for now, I've also used NGK's and AC delco's (fr3ls,fr4ls) and will soon be trying the Autolite AR3910's.
Registered User
Joined: Oct 1999
Posts: 448
From: DAPHNE,AL USA
Can you plugs guys fill me in on the heat ranges?
Is this the correct order?
coldest to hottest 3934, 3933
3932, 3911
3910, 3924
3923, 3922
5184
If so I was told by AFR to run the 3922s with a 12.1:1 LT1 and go to a 3924 if it does not ping
Is this the correct order?
coldest to hottest 3934, 3933
3932, 3911
3910, 3924
3923, 3922
5184
If so I was told by AFR to run the 3922s with a 12.1:1 LT1 and go to a 3924 if it does not ping
Registered User
Joined: Mar 1999
Posts: 477
From: Houston, TX
Originally posted by SILVERZZ28
Actually after doing some research the 104s are the same length. why not use those?
Actually after doing some research the 104s are the same length. why not use those?
Registered User
Joined: Mar 2000
Posts: 229
From: NorCal
Originally posted by BIGCOWL-IMP
o.k. just picked up a set of AR3910
what should the gap be at ??
yes i have msd
o.k. just picked up a set of AR3910
what should the gap be at ??
yes i have msd
I'm currently running a .035 gap with mine. I'm running a Dig-6 ignition box. Runs nice and smooth, no shortage of power.