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455 ci. Small Block
#962447
03/30/11 02:37 PM
03/30/11 02:37 PM
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Joined: Oct 2004
Posts: 513
HOUSTON,TEXAS
FIREGUY12
OP
mopar
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OP
mopar
Joined: Oct 2004
Posts: 513
HOUSTON,TEXAS
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Hey moparts. I have an engine I purchased from a member here on moparts. And wanted to know is there a better cylinder head I can purchase other than the B1/ BA M/C head that currently on it. The engine is 455ci
4.25 crank billet
4.125 bore
12-13:1 comp
620 roller
R3 siamese 59 degree block.
Dyno sheets states it made 630 H.P. 650 ft. lbs of torque.
I have not run it in my car but know I want more power in the near future. Will an Indy or W-9 head pick up horsepower level. I would like to see 750-800 H.P.
Last edited by FIREGUY12; 03/30/11 03:01 PM.
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Re: 455 ci. Small Block
[Re: FIREGUY12]
#962448
03/30/11 03:05 PM
03/30/11 03:05 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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Id call Ryan J see what he says.. My good buddy runs a W2 iron head 420 inch engine... No dominator, no roller.. made 630hp on the dyno.... Runs 6.20's in the 8th mile at 108-110 mph in a mini tubbed dart with cal tracks.... about 2900-3000 lbs car. So yea Id say there is power in there somewhere.. if he can make his run like that... You know those B1 heads can make a good amount more done right. Clancy's car... . 
[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: 455 ci. Small Block
[Re: Bob_Coomer]
#962449
03/30/11 05:33 PM
03/30/11 05:33 PM
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Joined: Oct 2007
Posts: 3,978
Hilltown Pa
1967dartgt
master
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master
Joined: Oct 2007
Posts: 3,978
Hilltown Pa
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I think a set of 245 cnc indys would get you in the 750 range. I made 650 or so with them 422 12.0to 1 4150 950 hp carb and 662 roller.More cubes,cam,compression I wouldn't see why you couldn't make that kind of power.
Brett Miller W9 cnc'd heads
STR Chassis fabraction
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Re: 455 ci. Small Block
[Re: BLONDE BARRACUDA]
#962451
03/30/11 07:30 PM
03/30/11 07:30 PM
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Joined: Jan 2003
Posts: 11,711
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,711
Portage,michigan
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that moved center head should make way more than 630 horsepower, if that is what it is making now. i know ported they go around 350 cfm, as much or more than a big indy head. numbers are just numbers of course. That said, dont know much about that head, as not many are out there, but " in theory" it should make 700 horsepower easily. think they had like a 2.15 intake valve if i remember correctly. i know the much smaller b1ba head will make the kind of power this motor you are talking about currently, does.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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Re: 455 ci. Small Block
[Re: BLONDE BARRACUDA]
#962456
03/30/11 09:09 PM
03/30/11 09:09 PM
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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:
6.2 eighth mile at 110 doesnt sound like 630hp in a 3000lb car or so Ive been told. mine runs 6.15 at 111 eighth mile at 2985 and people tell me that is only 550hp
The calculator on Wallace Racing puts you at 650-665 flywheel hp.
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Re: 455 ci. Small Block
[Re: FIREGUY12]
#962459
03/30/11 11:33 PM
03/30/11 11:33 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Hey moparts. I have an engine I purchased from a member here on moparts. And wanted to know is there a better cylinder head I can purchase other than the B1/ BA M/C head that currently on it. The engine is 455ci
4.25 crank billet
4.125 bore
12-13:1 comp
620 roller
R3 siamese 59 degree block.
Dyno sheets states it made 630 H.P. 650 ft. lbs of torque.
I have not run it in my car but know I want more power in the near future. Will an Indy or W-9 head pick up horsepower level. I would like to see 750-800 H.P.
I have a couple of questions for ya... whats all the
specs on your cam and what do you turn this up to
(on the dyno since you havent run it yet)... those
are usually a nice head.... 620 lift really says nothing
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Re: 455 ci. Small Block
[Re: MR_P_BODY]
#962460
03/30/11 11:39 PM
03/30/11 11:39 PM
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Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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I'd run it first..
If it were mine I would plug the lifter holes. Rebore and hone for 48 degree lifter angle.
Call CFE for the badest W8 he can put together for it.
Cause most of the guys who have these heads are not selling them off their engines. LOL
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: 455 ci. Small Block
[Re: Leon441]
#962461
03/31/11 07:19 AM
03/31/11 07:19 AM
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Joined: Feb 2009
Posts: 1,019
Finland
mafo
super stock
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super stock
Joined: Feb 2009
Posts: 1,019
Finland
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Cause most of the guys who have these heads are not selling them off their engines. LOL
That depends of course, how much is offered... 
-65 Valiant,420", all motor,2700#, dot tires, 8,42 @ 160,2
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Re: 455 ci. Small Block
[Re: dusturbd340W5]
#962463
03/31/11 10:42 AM
03/31/11 10:42 AM
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Joined: Nov 2008
Posts: 660
San Diego
formula S
mopar
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mopar
Joined: Nov 2008
Posts: 660
San Diego
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Quote:
Quote:
6.2 eighth mile at 110 doesnt sound like 630hp in a 3000lb car or so Ive been told. mine runs 6.15 at 111 eighth mile at 2985 and people tell me that is only 550hp
I think some one is telling you wrong my 416 with indybrocks push my 3000 ride to 6.2x's at 110-110 in the 1/8 and its been 9.76 at 138 1/4 and every calculator I have put the numbers in is right at 620 hp at the flywheel.
FWIW Those calculators give you average horse power on a pass, not peak 
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Re: 455 ci. Small Block
[Re: FIREGUY12]
#962465
03/31/11 10:54 AM
03/31/11 10:54 AM
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Joined: Oct 2004
Posts: 513
HOUSTON,TEXAS
FIREGUY12
OP
mopar
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OP
mopar
Joined: Oct 2004
Posts: 513
HOUSTON,TEXAS
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Sorry I cant get the dyno sheet to post but, it was pulled to 6500 rpm. made peak 634 H.P. at 5700 Rpm, 650 ft. lbs. torque at 4600 rpm.
Last edited by FIREGUY12; 03/31/11 11:00 AM.
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