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How much power will this combo get me
#879670
12/14/10 10:11 AM
12/14/10 10:11 AM
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Joined: Oct 2008
Posts: 492
South Jersey, NJ
DragDart360
OP
mopar
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OP
mopar
Joined: Oct 2008
Posts: 492
South Jersey, NJ
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366" small block, 0 deck, 12 to 1 comp. KB 190 pistons, Comp 305H cam 253 @ 50 5.25 lift (about 5.65 with my 1.6 rollers. Ported 2.02/ 1.60 J heads, Eddie air gap. How much difference would a set of RHS heads make. 
70 Dart Swinger, 2850 lbs
SB 408, Bullet roller 264/268 @50 .636 SSDS stage 2 Edelbrock heads, 1 7/8 Headmans, 1050 dominator by Dom, 9.867 @ 133
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Re: How much power will this combo get me
[Re: Cab_Burge]
#879676
12/15/10 12:14 AM
12/15/10 12:14 AM
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Joined: Oct 2008
Posts: 492
South Jersey, NJ
DragDart360
OP
mopar
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OP
mopar
Joined: Oct 2008
Posts: 492
South Jersey, NJ
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I can get a set of Eddys for a 340 (open Chamber?)
used for a good price but the KB web site says these pistons (KB190) won't work with the Eddy heads. I have all this stuff on hand except the Eddy heads. Can they be made to work at a reasonable cost?
70 Dart Swinger, 2850 lbs
SB 408, Bullet roller 264/268 @50 .636 SSDS stage 2 Edelbrock heads, 1 7/8 Headmans, 1050 dominator by Dom, 9.867 @ 133
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Re: How much power will this combo get me
[Re: DragDart360]
#879678
12/15/10 12:33 AM
12/15/10 12:33 AM
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Joined: Jul 2006
Posts: 382
Roseville MN
72swgnr
enthusiast
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enthusiast
Joined: Jul 2006
Posts: 382
Roseville MN
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Quote:
I can get a set of Eddys for a 340 (open Chamber?)
used for a good price but the KB web site says these pistons (KB190) won't work with the Eddy heads. I have all this stuff on hand except the Eddy heads. Can they be made to work at a reasonable cost?
I have the KB 191 pistons and my RHS closed chambered heads should be here in a few weeks. I was told by the techs that milling the dome off the pistons was acceptable to make closed chambered heads work. Also depending on the dome you MIGHT beable to just use a thicker head gasket.
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Re: How much power will this combo get me
[Re: 72swgnr]
#879679
12/15/10 12:57 AM
12/15/10 12:57 AM
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Joined: Feb 2006
Posts: 1,064
Tennessee
727builder
super stock
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super stock
Joined: Feb 2006
Posts: 1,064
Tennessee
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Built a guy in florida a 360/904 for his 69 valiant. He got some low 7.0s in the 1/8 shifting at 6600. That was thru the mufflers. His is a 30 over 360 with the kb191 pistons, comp cams 555 solid lift cam, Ported j-heads, Victor jr intake w/750 dp. 904 with a tight 8" converter. Weighs around 3100lbs with him in it. I know i can get some 6.80's with a little looser converter and some tuning.
Last edited by 727builder; 12/15/10 12:58 AM.
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Re: How much power will this combo get me
[Re: 727builder]
#879680
12/15/10 01:20 AM
12/15/10 01:20 AM
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Joined: Jan 2003
Posts: 9,146
Now - Port Orange,Fla. Former...
MIKES_DUSTER
master
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master
Joined: Jan 2003
Posts: 9,146
Now - Port Orange,Fla. Former...
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Quote:
Built a guy in florida a 360/904 for his 69 valiant. He got some low 7.0s in the 1/8 shifting at 6600. That was thru the mufflers. His is a 30 over 360 with the kb191 pistons, comp cams 555 solid lift cam, Ported j-heads, Victor jr intake w/750 dp. 904 with a tight 8" converter. Weighs around 3100lbs with him in it. I know i can get some 6.80's with a little looser converter and some tuning.
Thats almost the same combo I have except I have a .570 roller cam,M-1 intake,850 dp and a 727 in my duster that weighs 3200 with me.
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Re: How much power will this combo get me
[Re: goldmember]
#879682
12/15/10 03:56 AM
12/15/10 03:56 AM
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Joined: Oct 2003
Posts: 11,684
W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,684
W. Kentucky
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Quote:
While I agree that a WELL ported set of Eddies should run better,I'd stick with a good set of factory heads(ported) over a hack or stock eddie. I see few eddie combo's at the track that impress.
What is impressive? ET? Mph? 
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Re: How much power will this combo get me
[Re: justinp61]
#879683
12/15/10 05:31 AM
12/15/10 05:31 AM
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Joined: Jan 2003
Posts: 6,146
Melbourne , Australia
LA360
master
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master
Joined: Jan 2003
Posts: 6,146
Melbourne , Australia
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With either head you will need to mill the quench dome on the KB190 pistons. How much Carb are you running?
Alan Jones
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Re: How much power will this combo get me
[Re: goldmember]
#879684
12/15/10 09:21 AM
12/15/10 09:21 AM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
While I agree that a WELL ported set of Eddies should run better,I'd stick with a good set of factory heads(ported) over a hack or stock eddie. I see few eddie combo's at the track that impress.
problem with that is factory heads are prone to cracking and will cost about the same to port them. and I seen a 9.76 that was pretty impressive to me out of a set of indy/brocks at gville recently. I would go eddy all the way, only iron head I would use would be the RHS 
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Re: How much power will this combo get me
[Re: Quicktree]
#879685
12/15/10 10:04 AM
12/15/10 10:04 AM
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Joined: Oct 2008
Posts: 492
South Jersey, NJ
DragDart360
OP
mopar
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OP
mopar
Joined: Oct 2008
Posts: 492
South Jersey, NJ
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I'm running a 750 Dominator, Plan to convert it to E-85 so I can run the higher compression
70 Dart Swinger, 2850 lbs
SB 408, Bullet roller 264/268 @50 .636 SSDS stage 2 Edelbrock heads, 1 7/8 Headmans, 1050 dominator by Dom, 9.867 @ 133
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Re: How much power will this combo get me
[Re: DragDart360]
#879687
12/15/10 02:16 PM
12/15/10 02:16 PM
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Joined: Feb 2007
Posts: 2,578
sweden
1Fast340
master
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master
Joined: Feb 2007
Posts: 2,578
sweden
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Quote:
I can get a set of Eddys for a 340 (open Chamber?)
used for a good price but the KB web site says these pistons (KB190) won't work with the Eddy heads. I have all this stuff on hand except the Eddy heads. Can they be made to work at a reasonable cost?
i have a set of openchamber edelbrock340 heads and i cant realy see a reason why a piston for a stock non closed chamberhead wouldnt work the point with the open chamber 340edelbrock heads is that you can have a fairly good set of heads on a shortblock without changing your "stock type" popup pistons ,but im not sure on what kind of diference there is betwen the KB pistons and a stock 340piston
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in the 1/8th so you shoould be running pretty good ....i think if i was going this route i would get the rhs heads with all the updates and go way faster..jmo it would be ahead of the game unless you have max ported heads now .. 
The eddy heads probally flow more air also, but I don't know that, anyone on here have flow sheets or in the car results to add 
