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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: moparniac]
#1128129
12/05/11 04:50 PM
12/05/11 04:50 PM
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Joined: Feb 2009
Posts: 401
dayton,ohio
ROSSIO
mopar
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mopar
Joined: Feb 2009
Posts: 401
dayton,ohio
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i dont know if this will help you-----but i switched over from an 'INDY" set up---my 446 w/ indy heads 440-1--mine flowed 390.my motor was around 700hp----i bought a complete all alum B1 MC eng-carb to pan---it was 1100 hp on the dyno--i've had it 2 years now-love it.
1970 DART B1MC N/A
8.86@ [Email]155
3200 lb on 275 DR
5.30 @ 130 1/8
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: moparniac]
#1128131
12/05/11 06:12 PM
12/05/11 06:12 PM
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Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
WILD BILL
Senior Member of the Junior Dragster Club
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Senior Member of the Junior Dragster Club
Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
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Quote:
NICE I'm jealous 
Me too 
Have fun with it 
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: Mopar-Al]
#1128133
12/05/11 07:49 PM
12/05/11 07:49 PM
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Joined: Jan 2003
Posts: 16,925
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,925
NC
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Quote:
I just ordered the B1 package that is posted here on Moparts great deals area.
I am having them set the heads up and do the stage 1 port job, bowl blends,
For sure the B1 originals will make good power.
And the yearly winter sale is the right time to buy them from Koffels.
I will let the guys that have run them tell you about the value of upgrading the porting and rocker gear. And I assume you know the piston valve reliefs will need to be made specifically for these heads. 
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: Mopar-Al]
#1128134
12/05/11 07:52 PM
12/05/11 07:52 PM
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Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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Im also building a B1 Original engine over the winter. I came a hair from buying the package deal from Koffels, but when this package came up for sale locally, Id need brain surgery not to have jumped on it. These was fully ported with T@D 1.75 paired rockers. This engine will have some good parts, and it is a 499 low deck with a .800 roller, and 14:1 compression so it out motivate my junk well..
[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: Bob_Coomer]
#1128135
12/05/11 08:02 PM
12/05/11 08:02 PM
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Joined: Oct 2004
Posts: 5,618
long island NY
Ari440
master
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master
Joined: Oct 2004
Posts: 5,618
long island NY
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on a 500ci motor
how much hp would the B1s compare to a set of indy cnc 345s be and 800 lift
1.39 9.85 - 137 mph
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: Ari440]
#1128136
12/05/11 08:22 PM
12/05/11 08:22 PM
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Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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Quote:
on a 500ci motor
how much hp would the B1s compare to a set of indy cnc 345s be and 800 lift
I short thread hijack.....
Im not sure yet Ari
I will let you know...
Old Combo
493 with 12:1 compression fully cnc'd 440-1's with 375-380 cfm at .800
Cam was a PRH .790 Roller.
Pretty basic combo, back then there wasnt all these crank and rod choices. It was a eagle crank with eagle rods. Indy Single plane, and Dominator.
The truck weighed about 3300 lbs with driver and ran 9.60's 9.70's. Id say it made a true 700hp Id say, maybe less maybe more.
Pretty much same basic parts, single plane intake, similar cam specs, same basic engine low deck Vs tall deck..The low deck has a Billet crank and aluminum rods however. A hair more bore diameter 4.375 vs 4.350 for the low deck. Indy engine had 1.7 Jesel paired rockers vs Low decks 1.75.. Only major factor is the compression which will be several points more in the low deck.
So how much better will it run? Substantially, My guess. With the better parts, more flow, lighter reciprocating weight, and a considerable jump in compression??
[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: Mopar-Al]
#1128142
12/05/11 09:38 PM
12/05/11 09:38 PM
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Joined: Jan 2003
Posts: 3,871
Smyrna, South Carolina
STEFF
master
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master
Joined: Jan 2003
Posts: 3,871
Smyrna, South Carolina
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Quote:
Give me a little input on the supplied rockers, if you would?
Being that they are an extruded aluminum shaft rocker, they are just not a good robust rocker to handle the type of cam and spring pressure you should run with those heads. My 526 B1 used Jesel paired rockers. I ran about 400# on seat. Cam was about .875 lift.
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: Mopar-Al]
#1128144
12/06/11 04:26 AM
12/06/11 04:26 AM
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Joined: Jan 2007
Posts: 345
iowa
wesw
enthusiast
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enthusiast
Joined: Jan 2007
Posts: 345
iowa
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you should of went with the B1MC heads. as for the rockers that come with them from koffels they are JUNK... you will have nothing but problems. get the t&d rockers for it. two per stand and go with push rod oiling for the top end. i had the B1MC heads on my 572ci. the rocker didn't make it through the burn out on the first pass of the motor. i have lots of pictures on my other computer if you want to see them. they are good heads just don't buy the rocker that come with them. my B1MC motor after fixing the rocker problem made a little under 1100 hp. good luck with it. i sold my B1 motor two years ago and went to a predator motor. PS clean out your mail box.
598 ci predator
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: wesw]
#1128145
12/06/11 10:17 AM
12/06/11 10:17 AM
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Joined: Jun 2004
Posts: 6,780
Alabama
Mopar-Al
OP
master
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OP
master
Joined: Jun 2004
Posts: 6,780
Alabama
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PM box cleaned. I didn't realize there was a limit. The rockers came with the package, but I will be upgrading as I said.
I'm looking for cam suggestions . I was going to call comp and talk with them. As for my car
around 2650 lbs. with me in it, tube chassis, 456 dana, 14x32 goodyears, 2 spd glide with 5500 ptc, ladder bar car. I do have 17x33 tires and also 410, 456, and 513 gear sets. I dont plan on pushrod through oiling
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: ROSSIO]
#1128146
12/06/11 12:10 PM
12/06/11 12:10 PM
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Joined: Jan 2003
Posts: 4,048
Shelby Twp. Mi
HardcoreB
master
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master
Joined: Jan 2003
Posts: 4,048
Shelby Twp. Mi
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Quote:
i dont know if this will help you-----but i switched over from an 'INDY" set up---my 446 w/ indy heads 440-1--mine flowed 390.my motor was around 700hp----i bought a complete all alum B1 MC eng-carb to pan---it was 1100 hp on the dyno--i've had it 2 years now-love it.
You have a nice motor there  Did it make 1100 HP N/A with one carb on Koffel's dyno? What does your car weight and MPH in the 1/4? Maybe it's totally maxxed-out? I know the 446" -1 motor wasn't maxxed-out at 700ish HP. For this reason, I feel this isn't a good example for comparison purposes only. One thing I will ad is the kit rockers are highly prone to failure using roller cam spring pressures. They don't belong in that kit IMO. You should have no problem eclipsing 750 HP though even with a flat tappet.
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: Mopar-Al]
#1128147
12/06/11 12:30 PM
12/06/11 12:30 PM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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Quote:
PM box cleaned. I didn't realize there was a limit. The rockers came with the package, but I will be upgrading as I said.
I'm looking for cam suggestions . I was going to call comp and talk with them. As for my car
around 2650 lbs. with me in it, tube chassis, 456 dana, 14x32 goodyears, 2 spd glide with 5500 ptc, ladder bar car. I do have 17x33 tires and also 410, 456, and 513 gear sets. I dont plan on pushrod through oiling
Not for nothing Alan, but might I make a suggestion. In my opinion, you wont get the cam your combo really needs by calling Comp Cams. Why would you do that when you have Scott doing the porting, and who will know better than him what the heads need? You can get 2,000 recomendations for a cam, but the guy who has done the heads should be more than capable of suggesting a cam for his work.
You'd stand a better chance of staying married to a Kardashian for more than 32 days, than you would of getting thru to Comp Cams techline and getting a good suggestion for that combo... 
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: CompWedgeEngines]
#1128148
12/06/11 02:12 PM
12/06/11 02:12 PM
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Joined: Apr 2005
Posts: 2,128
Salt Lake City
camastomcat
top fuel
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top fuel
Joined: Apr 2005
Posts: 2,128
Salt Lake City
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Not for nothing Alan, but might I make a suggestion. In my opinion, you wont get the cam your combo really needs by calling Comp Cams. Why would you do that when you have Scott doing the porting, and who will know better than him what the heads need? You can get 2,000 recomendations for a cam, but the guy who has done the heads should be more than capable of suggesting a cam for his work. You'd stand a better chance of staying married to a Kardashian for more than 32 days, than you would of getting thru to Comp Cams techline and getting a good suggestion for that combo...
 Scott will know the score. If you're not going to pushrod oil, I wouldn't upgrade the rockers. I know I'll get a lot of flack here but, I have had good luck with Koffel rockers with the torington bearing system that Tom Hemphill sells. You also shouldn't need the 400lb seat pressure mentioned here, more like 280lb and 800 compressed. When you step up to the 380-400lb seat pressure springs, you'll need them for sure but starting out, I don't think it's that neccasary. Just my opinion, but I'm on my 5th B1 build and never used that kind of spring pressure until the Predator build, I even used the K1000H springs at 230#'s for several years with no issues.
Paired rockers are great but pushrod oiling is the only way to go IMO. I know people that have the spray bar oiling, but I know more people that had them fail than the Koffel rockers. They just have their limits.
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: CompWedgeEngines]
#1128149
12/06/11 05:57 PM
12/06/11 05:57 PM
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Joined: Apr 2009
Posts: 3,415
Toronto
mshred
master
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master
Joined: Apr 2009
Posts: 3,415
Toronto
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Quote:
You'd stand a better chance of staying married to a Kardashian for more than 32 days, than you would of getting thru to Comp Cams techline and getting a good suggestion for that combo...
Amen to that! At comp their tech guys is someone playing with their camquest program while on the phone with you...quite sad actually
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: B1HEAD_USER]
#1128152
12/06/11 10:36 PM
12/06/11 10:36 PM
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Joined: Feb 2009
Posts: 401
dayton,ohio
ROSSIO
mopar
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mopar
Joined: Feb 2009
Posts: 401
dayton,ohio
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HardcoreB
my B1MC was built & dyno'd in eastern PA---my dart wt 3350 w/driver,car runs 8.93 @ 152mph-1.30 60ft
i was just compareing my last motor (indy headed 440)to my new one,i've always wanted a big cube motor when i grew up and now i have ones
1970 DART B1MC N/A
8.86@ [Email]155
3200 lb on 275 DR
5.30 @ 130 1/8
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: Mopar-Al]
#1128154
12/07/11 02:36 AM
12/07/11 02:36 AM
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Joined: Jan 2003
Posts: 19,363
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,363
Las Vegas
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Good luck with the build and congrats on taking the B1 plunge. Good advice here for sure. As for HP well if you dont make 800hp you are doing something wrong!
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: I just pulled the trigger on Koffel's B1 sale.
[Re: HEMI472]
#1128157
12/07/11 05:08 PM
12/07/11 05:08 PM
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Joined: Apr 2005
Posts: 2,128
Salt Lake City
camastomcat
top fuel
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top fuel
Joined: Apr 2005
Posts: 2,128
Salt Lake City
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Quote:
how much difference is there in power between the B1 Original and the mc head ??
I'm going to guess around 50-75 from the people I know that have had both. I'll know more when I'm through with the ones I just bought. Porting, compression, and camshaft selection are key.
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