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What kind of rwhp does a late 70s; 440 make. Not much #1614419 04/30/14 11:29 PM 04/30/14 11:29 PM
Joined: Nov 2013 Posts: 743 Southern Alberta Uberpube OP super stock
Uberpube OP super stock Joined: Nov 2013 Posts: 743 Southern Alberta	I dyno'd it while I had the front driveshaft off just for [Email]s@#$[/Email] and giggles. 8129903-20140430_195625.jpg (333 downloads) Last edited by Uberpube; 04/30/14 11:30 PM.

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: Uberpube] #1614420 05/01/14 12:16 AM 05/01/14 12:16 AM
Joined: Nov 2007 Posts: 21,928 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,928 Kirkland, Washington	And what 440 exactly were you thrashing at a mean 3000 rpm for that test?

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: Pacnorthcuda] #1614421 05/01/14 12:22 AM 05/01/14 12:22 AM
Joined: Jan 2003 Posts: 6,591 Canton, Ohio S Sport440 master
Sport440 master S Joined: Jan 2003 Posts: 6,591 Canton, Ohio	Quote: And what 440 exactly were you thrashing at a mean 3000 rpm for that test? No reason to "Beat it" any harder as power dropped off after 3000 rpm.

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: Pacnorthcuda] #1614422 05/01/14 12:23 AM 05/01/14 12:23 AM
Joined: Nov 2013 Posts: 743 Southern Alberta Uberpube OP super stock
Uberpube OP super stock Joined: Nov 2013 Posts: 743 Southern Alberta	1978 440 , edelbrock 750 carb dual crush bent exhaust 2 1/4", mopar chrome box , rest stock. 100,000 miles. It pulled to about 4000 and hit a wall. Last edited by Uberpube; 05/01/14 12:24 AM.

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: Uberpube] #1614423 05/01/14 01:48 AM 05/01/14 01:48 AM
Joined: Apr 2013 Posts: 345 Nebraska 4 451Cuda enthusiast
451Cuda enthusiast 4 Joined: Apr 2013 Posts: 345 Nebraska	Quote: 1978 440 ,edelbrock 750 carb dual crush bent exhaust 2 1/4", mopar chrome box , rest stock. 100,000 miles. It pulled to about 4000 and hit a wall. You probably lost 20hp in that carb vs the stock tq

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: 451Cuda] #1614424 05/01/14 02:17 AM 05/01/14 02:17 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	OPs screen name is really strange.

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: Kern Dog] #1614425 05/01/14 06:46 AM 05/01/14 06:46 AM
Joined: Jan 2003 Posts: 6,416 nielsville, minn. Q quickd100 master
quickd100 master Q Joined: Jan 2003 Posts: 6,416 nielsville, minn.	That's about what I'd expect out of that package. Less than 8-1 compression to start with.Dave

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: quickd100] #1614426 05/01/14 06:50 AM 05/01/14 06:50 AM
Joined: Feb 2007 Posts: 2,578 sweden 1 1Fast340 master
1Fast340 master 1 Joined: Feb 2007 Posts: 2,578 sweden	Quote: That's about what I'd expect out of that package. Less than 8-1 compression to start with.Dave i would expect that you are itching to try some boost on that kind of package aswell

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: 1Fast340] #1614427 05/01/14 07:18 AM 05/01/14 07:18 AM
Joined: Jan 2003 Posts: 6,416 nielsville, minn. Q quickd100 master
quickd100 master Q Joined: Jan 2003 Posts: 6,416 nielsville, minn.	Quote: Quote: That's about what I'd expect out of that package. Less than 8-1 compression to start with.Dave i would expect that you are itching to try some boost on that kind of package aswell Actually I've got a 74' RamCharger with 79,000 actual miles on it, it's an original 440 D code unit. Steel crank motor too. I'm still trying to work all the bugs out of the 318 project. Haven't had much time to screw with it lately though.Dave

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: quickd100] #1614428 05/01/14 10:16 AM 05/01/14 10:16 AM
Joined: Apr 2003 Posts: 13,240 aZLiViN J J_BODY I Live Here
J_BODY I Live Here J Joined: Apr 2003 Posts: 13,240 aZLiViN	I remember pulling a head on my 77 400 to have a burnt valve repaired. Couldn't believe how far that piston was down in the hole at TDC. Thought about throwing some 915's on it, but I don't think that would have even helped.

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: J_BODY] #1614429 05/01/14 01:09 PM 05/01/14 01:09 PM
Joined: Jun 2006 Posts: 5,187 CT GTX MATT master
GTX MATT master Joined: Jun 2006 Posts: 5,187 CT	I don't buy it, you've got a poor running 440 even by late 70s standards. Thats 180 horsepower and 325 ft lbs of torque. I'd expect that running on 6 cylinders with 27 degrees of total timing. You should have 400ish ft lbs of torque still IMO. Run a compression test and report back to us. Last edited by GTX MATT; 05/01/14 01:53 PM. Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: Kern Dog] #1614430 05/01/14 04:05 PM 05/01/14 04:05 PM
Joined: Jul 2006 Posts: 4,179 California mickm master
mickm master Joined: Jul 2006 Posts: 4,179 California	Quote: OPs screen name is really strange.

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: GTX MATT] #1614431 05/01/14 04:28 PM 05/01/14 04:28 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	The 74 440 had 230 brake HP @ 4000 rpm.. the HP/police version had 275 brake HP @4400

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: Uberpube] #1614432 05/01/14 04:41 PM 05/01/14 04:41 PM
Joined: Jan 2003 Posts: 6,840 The Swamp S Sixpak master
Sixpak master S Joined: Jan 2003 Posts: 6,840 The Swamp	Quote: 1978 440 , edelbrock 750 carb dual crush bent exhaust 2 1/4", mopar chrome box , rest stock. 100,000 miles. It pulled to about 4000 and hit a wall. Throw some more timing at it?

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: Sixpak] #1614433 05/01/14 09:14 PM 05/01/14 09:14 PM
Joined: Mar 2007 Posts: 3,300 Northern Indiana Dunnuck Racing master
Dunnuck Racing master Joined: Mar 2007 Posts: 3,300 Northern Indiana	It had so much torque it was smoking the tires on the rollers! Look how bad the graph turns into a squiggly line! Keith www.dunnuckracing.com

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: Dunnuck Racing] #1614434 05/02/14 02:18 AM 05/02/14 02:18 AM
Joined: Aug 2003 Posts: 3,250 Between a rock & a hard place C cudadoug master
cudadoug master C Joined: Aug 2003 Posts: 3,250 Between a rock & a hard place	I can tell you that with a few right bolt ons...cam, intake, fresh heads, 10"/11" converters, etc... A 78 untouched short bock went 12.30's @ 110 at 4200# A 76 untouched short block went 11.70's @ 114 at 3400#

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: GTX MATT] #1614435 05/02/14 06:35 AM 05/02/14 06:35 AM
Joined: Aug 2006 Posts: 2,141 junction city oregon V viperblue72 top fuel
viperblue72 top fuel V Joined: Aug 2006 Posts: 2,141 junction city oregon	Quote: I don't buy it, you've got a poor running 440 even by late 70s standards. Thats 180 horsepower and 325 ft lbs of torque. I'd expect that running on 6 cylinders with 27 degrees of total timing. You should have 400ish ft lbs of torque still IMO. Run a compression test and report back to us. This is also through a transfer case. I would think that robs some power also.

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: viperblue72] #1614436 05/02/14 04:42 PM 05/02/14 04:42 PM
Joined: Jun 2006 Posts: 5,187 CT GTX MATT master
GTX MATT master Joined: Jun 2006 Posts: 5,187 CT	Quote: Quote: I don't buy it, you've got a poor running 440 even by late 70s standards. Thats 180 horsepower and 325 ft lbs of torque. I'd expect that running on 6 cylinders with 27 degrees of total timing. You should have 400ish ft lbs of torque still IMO. Run a compression test and report back to us. This is also through a transfer case. I would think that robs some power also. I was thinking that as well when I figured 25 percent loss, but how much more can the transfer case really cost? Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: cudadoug] #1614437 05/02/14 05:00 PM 05/02/14 05:00 PM
Joined: Dec 2013 Posts: 4,852 Wichita G GY3 master
GY3 master G Joined: Dec 2013 Posts: 4,852 Wichita	Quote: I can tell you that with a few right bolt ons...cam, intake, fresh heads, 10"/11" converters, etc... A 78 untouched short bock went 12.30's @ 110 at 4200# A 76 untouched short block went 11.70's @ 114 at 3400# Can we get more details on the '76?

Re: What kind of rwhp does a late 70s; 440 make. Not much [Re: GY3] #1614438 05/02/14 05:37 PM 05/02/14 05:37 PM
Joined: Jun 2008 Posts: 3,916 usa L lewtot184 master
lewtot184 master L Joined: Jun 2008 Posts: 3,916 usa	i think a stock 375hp magnum might do 240hp at the rear. an 8:1 '78 smogger was rated at 195hp@3600rpm. figuring at least a 20% loss with a tight converter thats 156hp at the rear, maybe a little less in the real world.

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