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#2522933 - 07/16/18 11:54 PM 440 STROKER KIT
rickb67 Offline
member

Registered: 12/10/07
Posts: 188
Loc: Rapid City, SD
WHO HAS THE BEST STROKER KIT FOR A 440. I WANT TO BE 510 TO 520 CUBIC INCH AND 750 TO 800 HORSE.

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#2522934 - 07/17/18 12:00 AM Re: 440 STROKER KIT [Re: rickb67]
Rob C Offline
super stock

Registered: 03/04/05
Posts: 752
Loc: Earth
440source? .com it.

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#2522939 - 07/17/18 12:11 AM Re: 440 STROKER KIT [Re: rickb67]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 24347
Loc: Oregon
What do you mean by "best". Do you mean cheapest?, strongest?, best value?

440Source is usually the cheapest. SCAT has rotating assemblies with a Mahle piston which I think is better than the ICON piston that 440Source uses. You can also get a K1, JE combo which works really well. Lots of choices.

Instead of asking for best you should tell us what you're trying to do. What heads do you have? What compression ratio do you want to run? What bore size? How deep do the valve pockets need to be?

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#2522944 - 07/17/18 12:41 AM Re: 440 STROKER KIT [Re: AndyF]
rickb67 Offline
member

Registered: 12/10/07
Posts: 188
Loc: Rapid City, SD
I WANT THE BEST. I HAVE STAGE 6 HEADS I WANT TO BE 12.5 TO 13 COMP. BORE SIZE WILL DEPEND ON THE KIT. I WILL RUN A ROLLER CAM.


Edited by rickb67 (07/17/18 12:46 AM)

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#2522946 - 07/17/18 12:46 AM Re: 440 STROKER KIT [Re: rickb67]
GY3 Online   content


Registered: 12/13/13
Posts: 2393
Loc: Wichita
Originally Posted By rickb67
I WANT THE BEST.


I used Molnar crank and rods.

Mahle pistons.

All of it was very nice stuff!

There is no "kit" but AndyF has a good piston selection chart in the tech section that helps you with your selection.
_________________________
'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's
10.69 @ 128mph with 150hp shot of nitrous


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#2522948 - 07/17/18 12:57 AM Re: 440 STROKER KIT [Re: GY3]
pittsburghracer Online   work
Slowride

Registered: 02/02/05
Posts: 13100
Loc: PA.
Check out the discount section on 440source. Looks like a good deal on a crank and set of rods.
_________________________
1970 Duster
Edelbrock headed 408
6.143@110.89 mph
9.73@135.05 mph shifting at 6700 RPM
422 Indy headed small block
6.001@113.27mph
9.44@138.23

Untitled by John Cadamore, on Flickr





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#2522953 - 07/17/18 02:05 AM Re: 440 STROKER KIT [Re: pittsburghracer]
ozymaxwedge Offline
super stock

Registered: 09/04/15
Posts: 1008
Loc: Australia
Originally Posted By pittsburghracer
Check out the discount section on 440source. Looks like a good deal on a crank and set of rods.


And they are fine at 750/800 hp
_________________________
1963 Plymouth Max Wedge
1971 Barracuda

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#2522960 - 07/17/18 05:18 AM Re: 440 STROKER KIT [Re: rickb67]
gregsdart Offline
master

Registered: 01/21/03
Posts: 8270
Loc: Frostbitefalls (Rocky&Bullwink...
If you want the best, and plan on using a stock block, invest in a center wieghted crank to make the block live a long life. I highly sugest you go with a 400 block also at the power level you want. When you say best, then talk to some of the great engine builders on this board and have them set you up with individual choices for pistons, etc. Your best results will come from going that route. Ask me how i know😀😀 your dyno results will love you for it!


Edited by gregsdart (07/17/18 05:21 AM)
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GREG
Educated at SHK U
Measure with yardstick
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528 cubic inch alky injected 440-1 wedge, 3055 race weight.
8.779 at 153.16 mph. 1.289 60 ft. density altitude 1617 feet. Best 60 ft 1.24

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#2523005 - 07/17/18 09:15 AM Re: 440 STROKER KIT [Re: GY3]
Eric Offline


Registered: 07/10/10
Posts: 2340
Loc: Pittsburgh PA
Originally Posted By GY3
Originally Posted By rickb67
I WANT THE BEST.


I used Molnar crank and rods.

Mahle pistons.

All of it was very nice stuff!

There is no "kit" but AndyF has a good piston selection chart in the tech section that helps you with your selection.


I have Molnar also with JE pistons....excellent quality on the crank and rods.
_________________________
5.53 @ 125 1/8th on the launch control..more left in her!


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#2523043 - 07/17/18 11:18 AM Re: 440 STROKER KIT [Re: rickb67]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 24347
Loc: Oregon
Originally Posted By rickb67
I WANT THE BEST. I HAVE STAGE 6 HEADS I WANT TO BE 12.5 TO 13 COMP. BORE SIZE WILL DEPEND ON THE KIT. I WILL RUN A ROLLER CAM.


What cc are the heads? You'll need to know that to pick the correct piston. There might not be an off the shelf stroker kit that gives you what you want. If it was me I'd use a Molnar crank with 7.100 rods and then look for a piston that gave me the compression ratio I wanted.

Are your Stage VI heads any good? I think they would be the weak link in your engine.

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#2523048 - 07/17/18 11:41 AM Re: 440 STROKER KIT [Re: AndyF]
dogdays Offline
I Live Here

Registered: 01/20/03
Posts: 16168
Spoiler Alert: Sarcasm ahead!!!!!

He did say BEST.....

If you want the BEST then you start with a Winberg or Sonny Leonard billet crank, Carrillo or Crower rods (there are others but key is they have to cost over $1000 per set), Gibtec billet pistons, pins with DLC coating. You'll have $5000+ in the rotating assembly, but it will be the best at least the best made in USA stuff.

Then it goes in an aftermarket block, because it'd be a shame for a stock block to wipe out that amount of money in parts.

Then you put your Stage VI heads on Ebay and buy heads that really work.

Or maybe you didn't understand the meaning of the word, "best".

R.

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#2523074 - 07/17/18 12:39 PM Re: 440 STROKER KIT [Re: rickb67]
fast68plymouth Online   content
I Live Here

Registered: 01/20/03
Posts: 11056
Loc: So. Burlington, Vt.
Two “problems” I see with the proposed build of “750-800hp”.

The stock block and stage 6 heads.

The stock block will break(at some point), and the stage 6 heads likely aren’t big enough to make 750-800hp(unless they are the big Chapman’s).....without help from spray or boost.

If the goal is a “real” 750-800hp NA for a reliable bracket type build, I think the plan could use a few revisions.
_________________________
68 Plymouth Satellite, 383, stock 906's, 3550lbs, 11.18 @ 123, 1.51 60'
WD- Comp Cams / Indy Cylinder Heads

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#2523105 - 07/17/18 01:28 PM Re: 440 STROKER KIT [Re: dogdays]
Biginchmopar Offline
pro stock

Registered: 11/22/10
Posts: 1226
Loc: Carson City, Nevada
Originally Posted By dogdays
Spoiler Alert: Sarcasm ahead!!!!!

He did say BEST.....

If you want the BEST then you start with a Winberg or Sonny Leonard billet crank, Carrillo or Crower rods (there are others but key is they have to cost over $1000 per set), Gibtec billet pistons, pins with DLC coating. You'll have $5000+ in the rotating assembly, but it will be the best at least the best made in USA stuff.

Then it goes in an aftermarket block, because it'd be a shame for a stock block to wipe out that amount of money in parts.

Then you put your Stage VI heads on Ebay and buy heads that really work.

Or maybe you didn't understand the meaning of the word, "best".

R.


Who is Sonny Leonard? I know Sonny BRYANT makes crankshafts but not so sure about Sonny Leonard grin

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#2523107 - 07/17/18 01:31 PM Re: 440 STROKER KIT [Re: rickb67]
Biginchmopar Offline
pro stock

Registered: 11/22/10
Posts: 1226
Loc: Carson City, Nevada
I agree with the above post about the stock block, it would be a shame to put all that money into an engine and the block fail and trust me it will.

I believe a 400 block with a good aluminum main cap and good aluminum rods will live for a while at 800hp but only for a while.

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#2523123 - 07/17/18 01:55 PM Re: 440 STROKER KIT [Re: rickb67]
an8sec70cuda Online   content
I Live Here

Registered: 01/19/03
Posts: 10726
Loc: Marion, South Carolina [><]
I wouldn't spend a bunch on crank and rods for a stock block build b/c when the block breaks, it'll likely take the rotating assembly with it.

Like Fast68 and dogdays said, you need better cylinder heads.
_________________________
CHIP
'70 hemicuda...8.91 at 150.5 mph street car...Mopar Action feature Dec. '14
'69 road runner 446" w/ Indy SRs
'69 road runner 440-6, 4 speed...Dad's ride
'71 Demon 340 resto project
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#2523128 - 07/17/18 02:01 PM Re: 440 STROKER KIT [Re: rickb67]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 24347
Loc: Oregon
Just dial the expectations down a bit and the combo will be fine. A 440Source kit with Stage VI heads should make 600 hp all day long and last a long time in a stock block.

700 hp would require some professional engine builder help with the cylinder heads and cam profile.

800 hp is very unlikely.....

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#2523151 - 07/17/18 02:36 PM Re: 440 STROKER KIT [Re: rickb67]
fast68plymouth Online   content
I Live Here

Registered: 01/20/03
Posts: 11056
Loc: So. Burlington, Vt.
If the stage 6’s will in fact be used, along with a stock block, I’d build either a 505RB or 511B, flat top pistons, easy on parts roller cam, and it would make whatever it makes.... which should still be enough to cause some issues for the stock block.

With std port stage 6’s, I don’t feel that 700hp would be a “slam dunk” by any means, on the dyno here.

You could always swap out the top end down the road for something more suited towards bigger power numbers......if you feel that you’d like to expidite the demise of the block.
_________________________
68 Plymouth Satellite, 383, stock 906's, 3550lbs, 11.18 @ 123, 1.51 60'
WD- Comp Cams / Indy Cylinder Heads

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#2523171 - 07/17/18 03:13 PM Re: 440 STROKER KIT [Re: rickb67]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 24347
Loc: Oregon
Stage VI heads on a 440 block require special intake manifold or funky spacers.

Personally I'd sell the Stage VI heads and buy Trick Flows but I understand if a person is going to use what they have. I usually build with what I have on hand too.

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#2523189 - 07/17/18 03:33 PM Re: 440 STROKER KIT [Re: rickb67]
fast68plymouth Online   content
I Live Here

Registered: 01/20/03
Posts: 11056
Loc: So. Burlington, Vt.
I have a strong suspicion the OP has the stage 6 RB intake already.
_________________________
68 Plymouth Satellite, 383, stock 906's, 3550lbs, 11.18 @ 123, 1.51 60'
WD- Comp Cams / Indy Cylinder Heads

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#2523222 - 07/17/18 05:00 PM Re: 440 STROKER KIT [Re: fast68plymouth]
Thumperdart Offline


Registered: 07/12/04
Posts: 18792
Loc: State of confusion
Not sure why everyone sez there's a for sure limit on power being the 'block breaker" cos there's more than a few 400 based turbo motors I've seen over the years in the 8's and living even w/stock caps. Detonation can end an aftermarket blocks life just as easily cos we've all seen that a few times and my lowly 9 second 470 is still ticking and kickin.......... thumbs
_________________________
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....

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