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Re: 440 Stroker Build Questions
[Re: 74-440Charger]
#1434183
05/12/13 10:20 PM
05/12/13 10:20 PM
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Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
tywebb2
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
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Why would you go with a stroked 400 over a 440? I thought there was no replacement for displacement? I have the 440 block now..... what is the advantage of the 400?
'72 440 Cuda
11.673 @ 115.91 w/1.663 60'
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Re: 440 Stroker Build Questions
[Re: 383man]
#1434187
05/13/13 12:59 AM
05/13/13 12:59 AM
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Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
tywebb2
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
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600 hp is more than enough for my cuda. Running best of 11.673 now and would like to be able to run low 11's without breaking a sweat while keeping it streetable. I have caltracs with mono leafs so hopefully I can get the extra torque to the ground? Will an 8.75" rear hold up though?
How many hp would you estimate my current 440 is making? It .030 over, stock crank, stock rods, trw six pax pistons (not zero decked), 9.9:1 compression, ootb eddy 84cc heads, rpm intake, comp pro mag rockers, 850 mighty demon, msd 6al, 2" primaries to 3.5" collector with 3" exhaust, 509 hyd cam.
'72 440 Cuda
11.673 @ 115.91 w/1.663 60'
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Re: 440 Stroker Build Questions
[Re: tywebb2]
#1434188
05/13/13 01:13 AM
05/13/13 01:13 AM
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Joined: Aug 2011
Posts: 2,859
Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,859
Pattison Texas
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guessing on 3700 with driver ? 474 hp ie wallace calculator .
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: 440 Stroker Build Questions
[Re: 74-440Charger]
#1434190
05/13/13 07:47 AM
05/13/13 07:47 AM
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Joined: Nov 2004
Posts: 3,619
Norwich CT USA
Defbob
master
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master
Joined: Nov 2004
Posts: 3,619
Norwich CT USA
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Quote:
Congrats on a nice build. I am curious about the headers you used and how you got them to clear the head studs, it looks like they will hit.
I the car has some old Hooker Super Comp 1-7/8" headers and they cleared the studs with no problem. Motor needs 2" or 2-1/8" headers.
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Re: 440 Stroker Build Questions
[Re: tywebb2]
#1434191
05/13/13 10:40 AM
05/13/13 10:40 AM
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Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,005
U.S.S.A.
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Quote:
600 hp is more than enough for my cuda. Running best of 11.673 now and would like to be able to run low 11's without breaking a sweat while keeping it streetable. I have caltracs with mono leafs so hopefully I can get the extra torque to the ground? Will an 8.75" rear hold up though?
How many hp would you estimate my current 440 is making? It .030 over, stock crank, stock rods, trw six pax pistons (not zero decked), 9.9:1 compression, ootb eddy 84cc heads, rpm intake, comp pro mag rockers, 850 mighty demon, msd 6al, 2" primaries to 3.5" collector with 3" exhaust, 509 hyd cam.
What's in your motor for parts doesn't help HP calculation , your MPH is in your sig 115 and change , what does the car weigh with you in it ?
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Re: 440 Stroker Build Questions
[Re: JohnRR]
#1434192
05/13/13 01:42 PM
05/13/13 01:42 PM
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Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
tywebb2
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
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It has been many years since I weighed the car but it is a full interior car with alum heads, prostar wheels, and caltracs. Can't think of any other areas where I would have shaved considerable weigh off. I weigh 150 so I am guessing the car with me in it is around 3600lbs.
'72 440 Cuda
11.673 @ 115.91 w/1.663 60'
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Re: 440 Stroker Build Questions
[Re: BradH]
#1434195
05/13/13 05:21 PM
05/13/13 05:21 PM
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Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,005
U.S.S.A.
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Quote:
OK, here's the dissenting opinion about to rear it's ugly (and balding) head: If all you want is low 11s (per your above statement), you don't need to build a stroker. A stronger stock-stroke 440 will get you there, plus your current 4.10 gear & 28" tire combination will be well suited to the shorter-stroke combination's RPM range on the track.
IMO, you should...
- port the E heads
- run a fairly aggressive solid flat-tappet cam
- run a good single-plane intake (not sure what you have now)
- build for about 10.5 CR to stay safe on 93-octane pump fuel
A 440 in that HP range would probably be just as happy (maybe happier) w/ 1-7/8" headers. But since I think you said you already have 2", run what you got.
You may need to change converters, but that depends on how your current one works w/ the new engine. The biggest hit on performance will be if the 10" doesn't let you 60-ft. as well as something a little looser.
FWIW, this is both opinion and fact-based from the results I've seen on my own builds.
He seemed set of going with a stroker and the thinking now is bigger is better ...
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Re: 440 Stroker Build Questions
[Re: JohnRR]
#1434196
05/13/13 06:51 PM
05/13/13 06:51 PM
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Joined: Mar 2009
Posts: 2,463
Sydney,Australia
tex013
top fuel
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top fuel
Joined: Mar 2009
Posts: 2,463
Sydney,Australia
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either motor will do it,the stroker easier. if starting from scratch the stroker is a no brainer.personally thinking running low 11's high 10's shouldn,t be a problem . my 440 has run 10.99 pb and will normally run around 11.1@120mph,this is at around 3720lbs(68 Satellite). no high end gear but well sorted. Tex
New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
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Re: 440 Stroker Build Questions
[Re: tex013]
#1434197
05/13/13 08:16 PM
05/13/13 08:16 PM
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Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
tywebb2
OP
super gas
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OP
super gas
Joined: Jan 2003
Posts: 1,221
Jarrettsville, MD
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I hate to say it but the thought also crossed my mind after reading 600hp is the limit, etc. with the 440 block. Could a stroker be overkill for my application and just open up other cans of worm? I'm curious....what hp is my 8 3/4 rear good too? I have no interest in upgrading to a dana.
The major issue I have with my engine now is the TRW pistons. The valve notches are too small for the Eddy valves and I am at the limit of my valve clearance and my compression is a bit low (9.9:1) with pistons down in hole (bad quench height).
Would it make more sense just to swap out the stock rods with H-beams and get a new set of pistons....then possibly CNC porting the heads? Would I still need to zero deck the block or could I buy pistons off the shelf that would put me where I need to be out of the box? Then with my piston-to-valve clearance opened up I could go with a different cam.
I put the numbers in a hp calculator and it came back at 519hp if my weight figure is correct. How much do you think I would pick-up (hp and et) getting the proper quench height, 10.5:1 compression, better cam, cnc ported eddy heads?
Last edited by tywebb2; 05/13/13 08:16 PM.
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As already said the 400 blocks are a lot stouter(thicker) in the main webs than the same year 440 blocks are so it is a better peice to start with 
My current 400 block with a 4.25 stroke crank in it(11.29 to 1 comp. ratio, 505 C.I.) has made 687 HP at 6300 RPM with a set of Eddy RPM CNC ported by Jeff at MCH with a Mopar 4500 M1 intake and a Holley 1050 CFM Dominator on it 
My 518 motor made 727 HP with a set of Indy SR max wedge ports and the same carb. as this one ran on Oregon pump gas
