What kind of power / torque should it make?
#2469133
03/20/18 02:27 PM
03/20/18 02:27 PM
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Joined: Dec 2015
Posts: 673 MI
MI Mopar Works
OP
mopar
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OP
mopar
Joined: Dec 2015
Posts: 673
MI
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I putting a low buck 360 street/ strip engine together for my Mirada and want to know what you think it should make for power and torque.
.040 over 360 LA block
.010 off deck for zero deck height with Speed Pro Hypereutectic pistons # H116CP4. Should be around 9.8:1 - 10.0:1 Comp ratio
Stock cast crank and rods
Comp hydraulic flat tappet cam #274H 0.488 int./0.491 exh. 230 int./236 exh @.050 110 LSA
Box stock Edelbrock Performer RPM 60779 cylinder heads
Box stock Edelbrock RPM air gap dual plane intake manifold
Comp Cams Pro Magnum roller rocker arms 1.5 ratio
Moroso 8 qt. oil pan and pickup, Melling HV oil pump
Quick fuel SQ750 double pumper carb, mechanical Edelbrock fuel pump
MSD billet distributor and wireset.
Hedman full length headers 1 7/8 primaries
I do plan on a chassis dyno session after everything is broken in and close on tune.
What will it make?
Last edited by MI Mopar Works; 03/20/18 02:28 PM.
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Re: What kind of power / torque should it make?
[Re: MI Mopar Works]
#2469266
03/20/18 05:53 PM
03/20/18 05:53 PM
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Joined: Aug 2005
Posts: 5,994 Salem
Grizzly
Moparts Proctologist
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Moparts Proctologist
Joined: Aug 2005
Posts: 5,994
Salem
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Closest without going over:
375 hp
430 tq
Mo' Farts
Moderated by "tbagger".
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Re: What kind of power / torque should it make?
[Re: MI Mopar Works]
#2469301
03/20/18 06:53 PM
03/20/18 06:53 PM
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Joined: Feb 2005
Posts: 20,116 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,116
PA.
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You shouldn't have any problem running 12.50's or faster with that combo.
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: What kind of power / torque should it make?
[Re: Cab_Burge]
#2469337
03/20/18 07:52 PM
03/20/18 07:52 PM
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Joined: Jan 2003
Posts: 11,701 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,701
Portage,michigan
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It wouldn't surprise me that it makes between 400 and 450 HP and more torque than HP at the flywheel, the rear wheel HP and torque will be influence greatly by the converter loss and drive train friction loss It wont come remotely close to 450. Would bet any amount of money on that. I would guess 380- 385 ish
Last edited by B3422W5; 03/20/18 07:54 PM.
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: What kind of power / torque should it make?
[Re: B3422W5]
#2469484
03/21/18 12:39 AM
03/21/18 12:39 AM
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Joined: Aug 2003
Posts: 43,007 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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It wouldn't surprise me that it makes between 400 and 450 HP and more torque than HP at the flywheel, the rear wheel HP and torque will be influence greatly by the converter loss and drive train friction loss It wont come remotely close to 450. Would bet any amount of money on that. I would guess 380- 385 ish How much money are you willing to loose? I've made 430 HP with all NHRA legal parts twenty years ago on two different 1971 340 motors with two different pairs of iron stock J and X heads If I can do that so can most other engine builders with similar parts The OP has a lot better parts and more C.I. to start with, hence my guestimate The last pump gas stroker 340 motor I did in SO CA made 525 HP with a mild set of race W2 iron heads with 9.4 to 1 compression using CA 91 octane pump swill, the new Eddy 340 aluminum heads are better than those heads where
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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