Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: joedust451]
#1110697
11/11/11 12:27 AM
11/11/11 12:27 AM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
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Posts: 4,920
Joplin, MO USA
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I have a set of these heads and they are 452... This pix of the peanut style head.....
Moparlee
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: Robbins]
#1110698
11/11/11 12:28 AM
11/11/11 12:28 AM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
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Joplin, MO USA
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Here is the other one with regular style plugs...
Moparlee
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: scratchnfotraction]
#1110699
11/11/11 10:57 AM
11/11/11 10:57 AM
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Joined: Jan 2003
Posts: 75,095 A Banana Republic near you.
JohnRR
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Joined: Jan 2003
Posts: 75,095
A Banana Republic near you.
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Quote:
my 77 MH 440 uses a 5/8 hex,tapperd seat,no washer,peanut plug, autolight 23
looks to me a autolite 23 will screw right in
23, 24 25 , all the same plug , just different heat range .
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: joedust451]
#1110700
11/11/11 11:03 AM
11/11/11 11:03 AM
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Joined: Jan 2003
Posts: 75,095 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,095
A Banana Republic near you.
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Quote:
They take the peanut plugs like on the chebbys.
Ok, it just accured to me (but i could be wrong), has anyone looked over there peanut plug 400/440 heads to see if they have these nipples, I'm starting to thing "maybe" they put them there so people would not try to install the old 13/16 plug & have it blow out, its just a thought, but it could be a steam passage.
Never thought of it like that , I thought the thread size of the plug was different but I guess all the plugs are 14mm , except for some fords tha twere 18mm.
Lee , thanks for putting up those pictures , I thought there was a marking that was different between the 2 as an identifier?
scratchy , that plug is 1/8-27NPT , one of the heads I had had that same plug , the other head was NOS. I got them from Paul Rossi back in the 80's , they had big valves and were ported some.
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: joedust451]
#1110701
11/11/11 12:55 PM
11/11/11 12:55 PM
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Joined: Jan 2003
Posts: 1,381 Youngsville, NC
dem440c
OP
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OP
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Joined: Jan 2003
Posts: 1,381
Youngsville, NC
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Quote:
The earlier ones did, I think by 75-76 all the 440s came with the 5/8 peanut plugs till the end of production.
that would be news to me... I've had several sets of late 70's 452 car heads and never saw this before. I have a 78 440 sitting between the fenders of a 67 NYer in my yard right now, I'll go down and look but I've had that engine in the car for 7 years and it takes the same big 13/16 Champion 12's spark plugs as every other big block I've dealt with. I also had a 77 400 in my truck for about 50k miles, changed the plugs in it more than ones during that time. Both of those engines came from C body cars and I have every reason to believe they were in factory condition when I got them. I have several other 76-78 400's and 440's down in the parts pile, maybe I should do an audit and look for this weirdness.....
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: dem440c]
#1110706
11/11/11 09:16 PM
11/11/11 09:16 PM
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Joined: Feb 2005
Posts: 5,221 Branson, Mo.
joedust451
super gas
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super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
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Quote:
Quote:
The earlier ones did, I think by 75-76 all the 440s came with the 5/8 peanut plugs till the end of production.
that would be news to me... I've had several sets of late 70's 452 car heads and never saw this before. I have a 78 440 sitting between the fenders of a 67 NYer in my yard right now, I'll go down and look but I've had that engine in the car for 7 years and it takes the same big 13/16 Champion 12's spark plugs as every other big block I've dealt with. I also had a 77 400 in my truck for about 50k miles, changed the plugs in it more than ones during that time. Both of those engines came from C body cars and I have every reason to believe they were in factory condition when I got them. I have several other 76-78 400's and 440's down in the parts pile, maybe I should do an audit and look for this weirdness.....
Like i said I "think", but in an earlier post it was shown there were 2 452s, one with the peanuts & one with the earlier style 13/16".
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: HotRodDave]
#1110707
11/11/11 11:06 PM
11/11/11 11:06 PM
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Joined: Dec 2008
Posts: 176 Rome, GA
GTXX
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Rome, GA
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I'm guessing he didn't read the right casting number.
Looks like he read the numbers up-side down
wonder if it has a 710 cap in the left valve cover?
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: GTXX]
#1110708
11/12/11 12:50 AM
11/12/11 12:50 AM
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Joined: Mar 2005
Posts: 1,445 Sterling Heights, Michigan 483...
daniel_depetro
pro stock
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pro stock
Joined: Mar 2005
Posts: 1,445
Sterling Heights, Michigan 483...
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Quote:
wonder if it has a 710 cap in the left valve cover?
1969 Dodge Super Bee A12 (440 Six Pack, 4-speed, Dana 60 4.10)
1972 Plymouth Road Runner (400, 4-speed, 8.75" 3.23)
1974 Plymouth Duster 360 (360, 4-speed, 8.75" 3.23)
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: HotRodDave]
#1110709
11/12/11 12:57 AM
11/12/11 12:57 AM
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Joined: Apr 2003
Posts: 1,324 Western Pa
joewhite440
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Posts: 1,324
Western Pa
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Quote:
Quote:
I'm guessing he didn't read the right casting number.
Looks like he read the numbers up-side down
I agree! A quick look or bad lighting would be an easy mistake! Just look at the picture of the head with number above!
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: Robbins]
#1110711
11/12/11 03:50 PM
11/12/11 03:50 PM
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Joined: Jul 2003
Posts: 4,793 Holland MI Ottawa
2boltmain
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Holland MI Ottawa
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I HATE IT when people need glasses but ignore it. That was an excellent call that whoever read the #s read them upside down. Corrective lenses will fix that.
Keep old mopars alive.
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: racincuda]
#1110714
11/13/11 12:13 AM
11/13/11 12:13 AM
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Joined: Jan 2004
Posts: 13,247 Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
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my old 76 winebago had the small taper seat plug's.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: weird cylinder heads on 440... spark plug won't fit?!??
[Re: 340SHORTY]
#1110716
11/14/11 01:20 PM
11/14/11 01:20 PM
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Joined: Jan 2003
Posts: 1,381 Youngsville, NC
dem440c
OP
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Posts: 1,381
Youngsville, NC
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I HATE IT when people need glasses but ignore it. That was an excellent call that whoever read the #s read them upside down. Corrective lenses will fix that.
Remember the owner of these heads is a Chevy chump.. = no brains
lol well, in many cases I would agree but in this instance we should give him some credit.... he bought an SRT8 Charger and liked it so much he decided to jump in with both feet and restore a 440 Charger, so at least there's hope for the man!
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