Sparkplug advice
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rmcomprandy
IndyPete
6 posters
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Sparkplug advice
IndyPete October 24th 2009, 10:02 am
So there is one area I know nothing about... Spark plugs... I went with the ones that were stock for a '71 429 motor at the parts store but I'm not sure if they are good for my combo... I'd love to know a little more about them and what hot vs cold spark plugs do and how to tell what you need.
This is what I got:
545, 9.78:1 CR
Ported D3VE heads
6115 Hooker headers
232/244 cam @ 0.050" Lunatti Voodoo cam
Edelbrock RPM intake, Holley 850 DP
Any thoughts?
This is what I got:
545, 9.78:1 CR
Ported D3VE heads
6115 Hooker headers
232/244 cam @ 0.050" Lunatti Voodoo cam
Edelbrock RPM intake, Holley 850 DP
Any thoughts?
IndyPete- Posts : 4
Join date : 2009-08-07
Re: Sparkplug advice
rmcomprandy October 24th 2009, 10:25 am
If it is 3/4" thread reach, Autolite #3924's
If it is .460" reach tapered seat, Autolite #24
The hex on the plug is 5/8".
If it is .460" reach tapered seat, Autolite #24
The hex on the plug is 5/8".
rmcomprandy- Posts : 6157
Join date : 2008-12-02
Location : Roseville, Michigan -
Reading plugs.
fordman460 October 24th 2009, 2:55 pm
http://www.dragstuff.com/techarticles/reading-spark-plugs.html Check this page out and the links at the bottom.
fordman460- Posts : 100
Join date : 2009-08-06
Age : 65
Location : orleans indiana
IndyPete- Posts : 4
Join date : 2009-08-07
Re: Sparkplug advice
BOSS 429 October 26th 2009, 12:52 am
the 3/4 reach doesnt work in a stock iron ford 429 head, ARF 42 OR AF 42 STD HEAT 5/8 hex
arf 32 is colder plug,
other wise if it is a big plug head it would be a BRF42 or BF 42 plug,once again BF 32 is colder
arf 32 is colder plug,
other wise if it is a big plug head it would be a BRF42 or BF 42 plug,once again BF 32 is colder
BOSS 429- Posts : 2372
Join date : 2009-08-10
Location : Ill
Re: Sparkplug advice
rmcomprandy October 26th 2009, 9:52 am
YEA, Motorcraft plugs will work too.
Champion, NGK, Nippon Denso, AC, and others have their own plugs which will also work OK.
Champion, NGK, Nippon Denso, AC, and others have their own plugs which will also work OK.
rmcomprandy- Posts : 6157
Join date : 2008-12-02
Location : Roseville, Michigan -
Re: Sparkplug advice
sixtynineford October 26th 2009, 10:10 pm
I am running ar33's in my 521 with doves, about 13 cr and 175 shot
sixtynineford- Posts : 48
Join date : 2009-09-16
Location : Carney OK
Re: Sparkplug advice
rmcomprandy October 26th 2009, 10:12 pm
sixtynineford wrote:I am running ar33's in my 521 with doves, about 13 cr and 175 shot
D0VE's use a completely different thread diameter on the spark plugs than a D3VE head uses.
rmcomprandy- Posts : 6157
Join date : 2008-12-02
Location : Roseville, Michigan -
Re: Sparkplug advice
sixtynineford October 26th 2009, 10:14 pm
wow, sorry I missed the d3 part just caught the iron head part! You would have trouble getting my plugs started in those heads without a big hammer!
sixtynineford- Posts : 48
Join date : 2009-09-16
Location : Carney OK
chuck stevens- Posts : 299
Join date : 2009-08-06
Location : Beutiful uptown SOMIS, CA ELIMINATOR Dlr. -
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