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spark plugs #2393916
10/27/17 05:35 PM
10/27/17 05:35 PM
Joined: Apr 2008
Posts: 230
Georgia
M
magiccuda Offline OP
enthusiast
magiccuda  Offline OP
enthusiast
M

Joined: Apr 2008
Posts: 230
Georgia
What do you guys run for spark plugs on 452 heads? Heads are off a motor home, now 440 6 pack.

Re: spark plugs [Re: magiccuda] #2393949
10/27/17 06:40 PM
10/27/17 06:40 PM
Joined: Aug 2003
Posts: 33,796
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
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Joined: Aug 2003
Posts: 33,796
Bend,OR USA
Are they the tapered seat of gasket type seat heads?
How much compression and type of fuel do you want to run ?


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: spark plugs [Re: magiccuda] #2393976
10/27/17 07:54 PM
10/27/17 07:54 PM
Joined: Apr 2008
Posts: 230
Georgia
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magiccuda Offline OP
enthusiast
magiccuda  Offline OP
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M

Joined: Apr 2008
Posts: 230
Georgia
I think its 10 1/2 to 1, 30 over flat tops so that I could run regular gas. I know it uses the small 5/6 tapered plug. I am not sure what the heat range of the plugs should be. A RV17YC came out of it but I dont know if that is the correct plug or not.

Re: spark plugs [Re: magiccuda] #2394073
10/27/17 10:42 PM
10/27/17 10:42 PM
Joined: Nov 2003
Posts: 35,517
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
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Joined: Nov 2003
Posts: 35,517
Lincoln Nebraska
Quote:
A RV17YC came out of it.
How did they look?


live every 24 hour block of time like it's your last day on earth
Re: spark plugs [Re: magiccuda] #2394105
10/28/17 12:03 AM
10/28/17 12:03 AM
Joined: Aug 2003
Posts: 33,796
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 33,796
Bend,OR USA
I won't run more than 10.0 to 1 compression ratio for todays pump gas with iron heads, I prefer less in fact up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: spark plugs [Re: magiccuda] #2394140
10/28/17 07:00 AM
10/28/17 07:00 AM
Joined: Apr 2008
Posts: 230
Georgia
M
magiccuda Offline OP
enthusiast
magiccuda  Offline OP
enthusiast
M

Joined: Apr 2008
Posts: 230
Georgia
Maybe it is 10 to 1, I will ask the machine shop. Let me add that Im running electronic ignition so it should have more spark. Biggest problem might be the gap may need to go to 40 or even 45.

Re: spark plugs [Re: magiccuda] #2394201
10/28/17 12:14 PM
10/28/17 12:14 PM
Joined: Aug 2007
Posts: 5,422
Caracas, Venezuela, SouthAmeri...
NachoRT74 Offline
master
NachoRT74  Offline
master

Joined: Aug 2007
Posts: 5,422
Caracas, Venezuela, SouthAmeri...
NGK's XR5... per general consensous they seems to be the best all around spark plug for BB.


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