which spark plug suitable for my engine
10-01-2010, 02:01 PM
#1
Junior Member
APPRENTICE
Thread Starter
Join Date: Aug 2007
Posts: 10
which spark plug suitable for my engine
Hi
I need help in choosing suitable spark plug for my engine
The specification for my engine as following
SBC 383 with 10.8:1 CR
AFR cylinder head 210(AFR-1054)
Solid roller camshaft (LUN-60132) with 1.6 rocker arm
Advertised Duration 273 int./279 exh
Valve Lift with Factory Rocker Arm Ratio 0.578 int./0.585 exh
I need help in choosing suitable spark plug for my engine
The specification for my engine as following
SBC 383 with 10.8:1 CR
AFR cylinder head 210(AFR-1054)
Solid roller camshaft (LUN-60132) with 1.6 rocker arm
Advertised Duration 273 int./279 exh
Valve Lift with Factory Rocker Arm Ratio 0.578 int./0.585 exh
10-01-2010, 03:13 PM
#2
Senior Member
RACING JUNKIE
Join Date: Mar 2006
Location: EUGENE,OR.
Posts: 3,391
I might get roasted for some of this, but here is what I have used/learned- many views on spark plugs here. (Kinda like valve lash threads here)...LOL
Here are few I remember: AC R45TS I think "TS" is tapered seat "R" is flat. This is a stock SBC plug.
NGK: BKR5E stock; the lower the number, the hotter the plug.
Bosch: F6DSR again stock.
not sure about hot/cold on your application due to set up; spray/no spray etc...
I use Bosch Platinum in my BBC... Why?? Ever try to start high comp motor in the winter w/ no choke? Fouled many over the years... I have noticed that platinum's are pretty hard to foul... & if they do, they will work the next day after dying out. JMO.
Here are few I remember: AC R45TS I think "TS" is tapered seat "R" is flat. This is a stock SBC plug.
NGK: BKR5E stock; the lower the number, the hotter the plug.
Bosch: F6DSR again stock.
not sure about hot/cold on your application due to set up; spray/no spray etc...
I use Bosch Platinum in my BBC... Why?? Ever try to start high comp motor in the winter w/ no choke? Fouled many over the years... I have noticed that platinum's are pretty hard to foul... & if they do, they will work the next day after dying out. JMO.
10-01-2010, 11:07 PM
#3
Senior Member
RACING JUNKIE
Join Date: May 2006
Posts: 2,044
I like scooters recommendations, any of those will be fine for your combo, but to add to it if I may.
If you plan on using a ignition box like a MSD 6AL or equivalent, tighten the plug gaps up a bit.
I like > .028 - 032 :wink:
If you plan on using a ignition box like a MSD 6AL or equivalent, tighten the plug gaps up a bit.
I like > .028 - 032 :wink:
