Stroked 400 Engine ? - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer Stroked 400 Engine ?

Print Thread

Page 1 of 2

1

2

Stroked 400 Engine ? #564785 12/28/09 01:28 PM 12/28/09 01:28 PM
Joined: May 2009 Posts: 130 Blanchard, OK R Real-Fury OP member
Real-Fury OP member R Joined: May 2009 Posts: 130 Blanchard, OK	I have an opportunity to purchase a car with 400 cu.in engine that has been stroked and is now somewhere in the vicinity of 450 cu.in.. It supposedly was built right and has a mild Hyd. cam and other improvements when put together. I am aware of the 400 engine in the Cordobas back in the late 70's but never heard of anyone hot rodding them. Are there any inherent shortcomings with the basic 400 engine that would make it a problem going forward? I can't find much info on the 400 anywhere on the internet so its hard to find out if it was a problem child or a good solid engine. Thanks, Butch

Re: Stroked 400 Engine ? [Re: Real-Fury] #564786 12/28/09 01:32 PM 12/28/09 01:32 PM
Joined: Jan 2008 Posts: 3,886 Lost and Spaced B bboogieart master
bboogieart master B Joined: Jan 2008 Posts: 3,886 Lost and Spaced	your stroked motor should be like 452" the 400s are very good motors to hot rod, stock they are a little tame do mostly to poor compression ratings. The real question is who did the work and how was it beat after the rebuild. If the motor is sound you have a great combo.

Re: Stroked 400 Engine ? [Re: Real-Fury] #564787 12/28/09 01:34 PM 12/28/09 01:34 PM
Joined: Jan 2003 Posts: 21,645 San Jose,CA migsBIG YouTube is my go-to news source
migsBIG YouTube is my go-to news source Joined: Jan 2003 Posts: 21,645 San Jose,CA	400 blocks were always good and very durable. I know of several that run 10's on street/strip cars with those blocks. The only downer would be a stock crank, rods and heads. Since it's a stroker, the crank was swapped out, but the rods are what, aftermarket or stock? Really depends on the internals used more than the block. On the heads, do you know what was done to them or if they were replaced? [IMG]http://i130.photobucket.com/albums/p265/migsbig/Hippo_skull_dark-1.jpg[/IMG]

Re: Stroked 400 Engine ? [Re: migsBIG] #564788 12/28/09 01:50 PM 12/28/09 01:50 PM
Joined: May 2009 Posts: 130 Blanchard, OK R Real-Fury OP member
Real-Fury OP member R Joined: May 2009 Posts: 130 Blanchard, OK	Good info! I'll find out more about what went inside later in the week and respond back. The builder said it as a great combination but I no nothing about 400's. Thanks, Butch

Re: Stroked 400 Engine ? [Re: Real-Fury] #564789 12/28/09 02:32 PM 12/28/09 02:32 PM
Joined: Jan 2003 Posts: 665 Northwest Chicago Suburb DaDart mopar
DaDart mopar Joined: Jan 2003 Posts: 665 Northwest Chicago Suburb	Check out Andy's Articals Lots of good stuff here

Re: Stroked 400 Engine ? [Re: Real-Fury] #564790 12/28/09 04:12 PM 12/28/09 04:12 PM
Joined: Jan 2003 Posts: 31,042 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,042 Oregon	Do a Google search on big block Mopar stroker engines and you'll find a ton of information. I wrote a whole book on the subject plus tons of magazine articles. The tech pages on here also have lots of information on stroker motors.

Re: Stroked 400 Engine ? [Re: AndyF] #564791 12/28/09 04:28 PM 12/28/09 04:28 PM
Joined: Jul 2006 Posts: 4,319 Puyallup, WA S StealthWedge67 master
StealthWedge67 master S Joined: Jul 2006 Posts: 4,319 Puyallup, WA	The 451 / 452 combo is a good one! If its done right, it should be a very durable, quick revving beast. What you decide to pay for it is only up to you, but don't even think twice about whether or not is a good combo. It's basically an .080 over 440, only lighter in both the block and rotating assembly. There's strong arguments that say when considering stroke v. rod ratio v. bobweight; the 451 is the best all around combo you can make. LemonWedge - Street heavy / Strip ready - 11.07 @ 120

Re: Stroked 400 Engine ? [Re: StealthWedge67] #564792 12/28/09 05:28 PM 12/28/09 05:28 PM
Joined: May 2009 Posts: 130 Blanchard, OK R Real-Fury OP member
Real-Fury OP member R Joined: May 2009 Posts: 130 Blanchard, OK	Wow! This is great information guys. Looks like if it's built right this is a great engine to run. I'll be looking up more articles on the internet and really appreciate the leads. Butch

Re: Stroked 400 Engine ? [Re: Real-Fury] #564793 12/28/09 06:42 PM 12/28/09 06:42 PM
Joined: Nov 2004 Posts: 1,760 Port Alberni, British Columbia MoparDonny top fuel
MoparDonny top fuel Joined: Nov 2004 Posts: 1,760 Port Alberni, British Columbia	just finished one and put it in my Challenger in october. A friend has an original 68 Dart 383 car with a 451 and runs 11.3 with no tuning and 3.55 gears. here, read this topic called 451 Manifesto .....http://www.moparts.org/Tech/Archive/bigblock.html

Re: Stroked 400 Engine ? [Re: Real-Fury] #564794 12/28/09 07:45 PM 12/28/09 07:45 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: Wow! This is great information guys. Looks like if it's built right this is a great engine to run. I'll be looking up more articles on the internet and really appreciate the leads. Butch the original idea for the 400block/440crank stroker engine wasn't really a gain more cube kinda thing. it was easier putting the "B" block into A-bodies, rather then the 3/4" taller "RB" block. header clearances especially. 11 cubes gained over a 440 really isn't that big of a deal. did this engine have the 440 mains turned down, or did somebody bore out the 400 main caps and saddle area (cheaper $$)? that would make a huge difference IMO.

Re: Stroked 400 Engine ? #564795 12/28/09 08:06 PM 12/28/09 08:06 PM
Joined: Feb 2005 Posts: 5,221 Branson, Mo. J joedust451 super gas
joedust451 super gas J Joined: Feb 2005 Posts: 5,221 Branson, Mo.	Look at my sig., this was a "nothing" 451 believe me lol. Ran it for 2 yrs. with over 250 passes on it, sold it 3 yrs. ago, its still going strong, but its not been raced much sence i sold it. 75 Duster, 451 10.87 @ 123.58 NA 97 Z28 6sp., 12.01 @ 115 on a 100 shot 71 Swinger. 360 magnum. 12.58 @ 105 78 cutlass, 469 BBC. 12.70 @ 108 on street tires. http://www.youtube.com/watch?v=Z2kqNmMfheU

Re: Stroked 400 Engine ? [Re: MoparDonny] #564796 12/28/09 08:57 PM 12/28/09 08:57 PM
Joined: Jan 2003 Posts: 31,042 Oregon A AndyF I Win
AndyF I Win A Joined: Jan 2003 Posts: 31,042 Oregon	Quote: just finished one and put it in my Challenger in october. A friend has an original 68 Dart 383 car with a 451 and runs 11.3 with no tuning and 3.55 gears. here, read this topic called 451 Manifesto .. http://www.moparts.org/Tech/Archive/bigblock.html I wrote the 451 Manifesto about 10 years ago. I think most of that information is still valid but it is getting a bit dated. More current information is available in my book which just came out this past summer.

Re: Stroked 400 Engine ? [Re: AndyF] #564797 12/28/09 09:26 PM 12/28/09 09:26 PM
Joined: Dec 2003 Posts: 157 Santa Rosa CA Bones member
Bones member Joined: Dec 2003 Posts: 157 Santa Rosa CA	Andy, what is the name of your book and where can I purchase a copy?

Re: Stroked 400 Engine ? [Re: Bones] #564798 12/29/09 01:02 AM 12/29/09 01:02 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	The 400 is basically like a bored 383. They can run good even without stroking them. Yes its not the best combo out there but it can run decent. All you have to do is put some comp in it and a good cam to go with the combo. They use your basic bigblock heads. My sons Dart is a .030 over stock stroke 400 (406) and it makes a nice street car. It has Eddy RPM heads and the MP .557 cam. With 3.91's at 3550 lbs it will run 11.40's on good days. Sure if we stroke it we should get it in the 10's but when cash is tight we use what we have laying around. Ron

Re: Stroked 400 Engine ? [Re: Bones] #564799 12/29/09 11:10 AM 12/29/09 11:10 AM
Joined: Jan 2003 Posts: 665 Northwest Chicago Suburb DaDart mopar
DaDart mopar Joined: Jan 2003 Posts: 665 Northwest Chicago Suburb	LINK 3 Darts and a Ram

Re: Stroked 400 Engine ? [Re: 383man] #564800 12/29/09 01:12 PM 12/29/09 01:12 PM
Joined: Aug 2007 Posts: 6,095 Valencia, España NachoRT74 master
NachoRT74 master Joined: Aug 2007 Posts: 6,095 Valencia, España	Quote: The 400 is basically like a bored 383. They can run good even without stroking them. .......... All you have to do is put some comp in it and a good cam to go with the combo. They use your basic bigblock heads....... and will get the earlier Mopar BB glory days like any 383 had. if even more wished, getting a forged crank and will get a 383 complete 383 with 400 bore and spreadbore intake ( talking about stock pieces ) then if more whished... 451 stroke, 47 stroke, 500 stroke, 512 stroke... With a Charger born in Chrysler assembly plant in Valencia, Venezuela

Re: Stroked 400 Engine ? [Re: NachoRT74] #564801 12/29/09 01:15 PM 12/29/09 01:15 PM
Joined: Sep 2005 Posts: 12,481 Chino Valley RodStRace I Live Here
RodStRace I Live Here Joined: Sep 2005 Posts: 12,481 Chino Valley	The big thing with a 451 as mentioned in the manifesto is a 7 pound loss of rotating weight! They rev like a small block!

Re: Stroked 400 Engine ? [Re: Real-Fury] #564802 12/29/09 07:15 PM 12/29/09 07:15 PM
Joined: Mar 2005 Posts: 2,060 Pendleton NY T terzmo top fuel
terzmo top fuel T Joined: Mar 2005 Posts: 2,060 Pendleton NY	Quote: I have an opportunity to purchase a car with 400 cu.in engine that has been stroked and is now somewhere in the vicinity of 450 cu.in.. It supposedly was built right and has a mild Hyd. cam and other improvements when put together. I am aware of the 400 engine in the Cordobas back in the late 70's but never heard of anyone hot rodding them. Are there any inherent shortcomings with the basic 400 engine that would make it a problem going forward? I can't find much info on the 400 anywhere on the internet so its hard to find out if it was a problem child or a good solid engine. Thanks, Butch I know of two 400's stroked to 451...one was in a 70 charger and ran 12.30's without much tweaking and very little done for weight reduction. The other was in a dakota P/U and ran 11.70's all day.Quite a nice setup but I lean towards a stroked 440 myself

Re: Stroked 400 Engine ? [Re: Real-Fury] #564803 12/29/09 09:24 PM 12/29/09 09:24 PM
Joined: Nov 2009 Posts: 190 USA I indy dart member
indy dart member I Joined: Nov 2009 Posts: 190 USA	I have a 470 Indy crate motor based on a late model 400. It seems to be a good build. I am a novice at putting together a race car but the first pass at the track it went low 11's. If you need the part list on it shoot me a fax #. It makes 610 hp by the dyno on pump gas. 1970 B5 v-code Superbird 1971 Dodge Charger R/T in GA4

Re: Stroked 400 Engine ? [Re: indy dart] #564804 12/30/09 12:00 AM 12/30/09 12:00 AM
Joined: Mar 2007 Posts: 89 oregon ramcharger1964 member
ramcharger1964 member Joined: Mar 2007 Posts: 89 oregon	I know a couple NSS engine builders who actually prefer the B (383,400)blocks to the RB's (413,426,440). Damon Kuhn being one of them (Diamondback Racing Engines) What you have sounds like a good set up. Go for it! Hell B!tch Racing Co.

Page 1 of 2

1

2

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1