Will this stock stroke 440 make 700hp?
#2718271
11/21/19 11:50 PM
11/21/19 11:50 PM
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Joined: Nov 2019
Posts: 13 USA
Jonny440
OP
member
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OP
member
Joined: Nov 2019
Posts: 13
USA
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I have a 446 I’m putting together currently and want to see what you guys think it will make horsepower wise 10.700 deck 3.75 crank 7.100 rod 14.5:1 .030 dome piston Eddy m/w victor Cnc port heads 332 cc 2.25 int 1.81 exh Heads flow 375 at .750 lift .705 lift cam 282/292 110 centerline PAC 1225 springs 1.6 rockers Eddy super victor intake 1050 dominator Single line external oil pickup
Last edited by Jonny440; 11/22/19 12:16 AM.
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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2718284
11/22/19 12:26 AM
11/22/19 12:26 AM
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Joined: Feb 2005
Posts: 20,145 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,145
PA.
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Well start out by figuring you have what .660-.675 max lift after subtracting valve lash, pushrod deflection, and angle loss. Now It’s at that lift for a split second so how well do the heads flow at .550 and .600 lift.
Last edited by pittsburghracer; 11/22/19 12:27 AM.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2718287
11/22/19 12:43 AM
11/22/19 12:43 AM
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Joined: Feb 2005
Posts: 20,145 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,145
PA.
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Looks like a fun build. Hopefully it’s an aftermarket crank and a ported intake
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2718292
11/22/19 01:28 AM
11/22/19 01:28 AM
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Joined: Jan 2003
Posts: 30,989 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 30,989
Oregon
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Maybe. You have lots of compression so that will help. Cam seems too big for that size of engine so I'm not sure how well it will work. With that big of a cam you might not build enough torque in the mid range to carry the numbers up high. You'll just have to give it a try and see. You might end up needing less duration and more lift to make big numbers. Good luck, let us know how it runs.
Last edited by AndyF; 11/22/19 01:29 AM.
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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2718306
11/22/19 08:27 AM
11/22/19 08:27 AM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Whose MW Victor CNC program?
What's the combination of the car it's going in?
Last edited by BradH; 11/22/19 01:28 PM.
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Re: Will this stock stroke 440 make 700hp?
[Re: BradH]
#2718327
11/22/19 10:31 AM
11/22/19 10:31 AM
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Joined: Jan 2003
Posts: 14,491 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,491
So. Burlington, Vt.
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It should make 700.
650-800....... depending on where it’s tested.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Will this stock stroke 440 make 700hp?
[Re: Roughbird72]
#2718470
11/22/19 09:18 PM
11/22/19 09:18 PM
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Joined: Sep 2006
Posts: 1,442 central ohio
nss guy
pro stock
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pro stock
Joined: Sep 2006
Posts: 1,442
central ohio
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[quote=Roughbird72] [/quote
Last edited by nss guy; 11/23/19 06:46 AM.
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Re: Will this stock stroke 440 make 700hp?
[Re: fast68plymouth]
#2718472
11/22/19 09:26 PM
11/22/19 09:26 PM
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Joined: Aug 2011
Posts: 2,853 Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,853
Pattison Texas
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It should make 700.
650-800....... depending on where it’s tested. BEST answer EVER
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2718551
11/23/19 07:43 AM
11/23/19 07:43 AM
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Joined: Oct 2015
Posts: 570 UK
rb446
mopar
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mopar
Joined: Oct 2015
Posts: 570
UK
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Scott at competition components a body My mates 3150lb Dart ran a best of 10.12@132+change = 600fwhp, spec was 446, 12.5:1, Eddy's flowing 320's@600, MP purple .590 solid 271@.050 iron rockers, so prob only (.550" lift with lash/ratio etc.) Victor int. 1050 Dom... If your similar weight? and run 139>140 then thats 700fwhp..only way you'll really know, stating the obvious. wallace calc, others may differ.
1969 'Cuda 446ci, best 9.96@133.9 in 1990 1971 340 'Cuda, best 11.01@122.8 in 1987
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Re: Will this stock stroke 440 make 700hp?
[Re: Jonny440]
#2718592
11/23/19 11:52 AM
11/23/19 11:52 AM
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Joined: Feb 2005
Posts: 20,145 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,145
PA.
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I have a 446 I’m putting together currently and want to see what you guys think it will make horsepower wise 10.700 deck 3.75 crank 7.100 rod 14.5:1 .030 dome piston Eddy m/w victor Cnc port heads 332 cc 2.25 int 1.81 exh Heads flow 375 at .750 lift .705 lift cam 282/292 110 centerline PAC 1225 springs 1.6 rockers Eddy super victor intake 1050 dominator Single line external oil pickup
What are you using for fuel
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Will this stock stroke 440 make 700hp?
[Re: pittsburghracer]
#2718603
11/23/19 12:18 PM
11/23/19 12:18 PM
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Joined: Jan 2003
Posts: 14,491 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,491
So. Burlington, Vt.
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It would be interesting to see just where the tq peak occurs, and how big the number is.
The combo looks to me like it would be best suited towards a dragster, or another pretty light car with a trans brake.
A RB451 I built with MW port SR’s that flowed noticeably less than the OP’s Victors, 13:1cr, Indy 440-3, 1050 carb, a cam about 10deg smaller with .650 lift and my dyno headers made 712hp@7200. Peak tq was at 5500.......right about 600ft/lbs.
Found the sheet:
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Will this stock stroke 440 make 700hp?
[Re: AndyF]
#2718647
11/23/19 02:06 PM
11/23/19 02:06 PM
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Joined: Aug 2003
Posts: 43,096 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,096
Bend,OR USA
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I remember Paul Rossi and some other SO CA six pack NHRA SS racers in the early to mid 1080 saying they shifted there motors sat or close to 5500 RPM with the two piece bolt together Weiand six pack intake with O69J converters Paul was testing T/A converters at Orange county on a Wednesday night before the first divisional race over in Phoenix in 1979 later that week, he would leave at a idle and pull the front tires way up and long in first gear in his 1971 Challenger My pump gas 400 stroker motor with a stock low deck six pack intake with stock type 440 vacuum carbs like to be shifted above 7000 RPM to make the car goes as fast as it would that solid roller cam was 260@.050 on the intake lobes with .420 lobe lift and it had 266@.050 on the exhaust with .409 lobe lift ground on a 108 LSA installed 1 to 2 degrees advance depending on which lobes I check I dyno tested that motor on three different brands of engine dyno in three different towns, Ontario,CA on DTS engine dyno in Madras, OR. on a Studka brand engine dyno and in Klamath Falls, OR at 4300 Ft elevation on a new(at that time) DTS the last time. It would make peak torque either at 4500 or 4600 rpm with peak HP at 5500 or 5600 RPM regardless of which brand dyno or at what elevation I had two different sets of heads on that motor with the six pack, I later swapped the heads to a set of Indy SR M.W. ports with a Indy 400-3 intake with a 1050 CFM Holley Dominator carb, which made some more HP and torque at a lot higher RPM with the same cam. Those changes pick the car up around .25 ET and 8 MPH
Last edited by Cab_Burge; 11/23/19 02:07 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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