Re: Ideas for a stout stock stroke 340 build.
[Re: cudadoug]
#1673992
09/20/14 04:49 AM
09/20/14 04:49 AM
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Joined: Jan 2003
Posts: 20,212 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,212
Park Forest, IL
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The guys in Stock are well into the 10's with a stock stroke, stock heads, stock intake and carb, and stock lift. They are pretty close to your weight too.
Yes, I know that it's comparing apples and oranges, but a lot of their power comes from meticulous assembly and lots of little tricks.
I would think with the same care and better induction, heads, and camshaft you should be able to get close to the power they make without being ragged edge.
"Everybody funny, now you funny too."
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Re: Ideas for a stout stock stroke 340 build.
[Re: slantzilla]
#1673993
09/20/14 10:43 AM
09/20/14 10:43 AM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
The guys in Stock are well into the 10's with a stock stroke, stock heads, stock intake and carb, and stock lift. They are pretty close to your weight too.
Yes, I know that it's comparing apples and oranges, but a lot of their power comes from meticulous assembly and lots of little tricks.
I would think with the same care and better induction, heads, and camshaft you should be able to get close to the power they make without being ragged edge.
and hundreds of hours testing and swapping parts, very expensive not to mention rpms they have to spin them
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Re: Ideas for a stout stock stroke 340 build.
[Re: Quicktree]
#1673994
09/20/14 10:56 AM
09/20/14 10:56 AM
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Joined: Jan 2003
Posts: 11,728 Portage,michigan
B3422W5
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 11,728
Portage,michigan
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Stock eliminator build, while trick, is still very limited head and induction wise, the two areas where not having such limits are helpful. I am pretty positive what I want to do isn't that hard. 550 or so isn't that much steam with good heads and combination, even at 340 something inches. I don't want to spin this thing much past 7k either. Shouldn't have to either.
Maybe some skipped my reference couple of posts up to that 340/w9 build that broke 600 horse@ 7000 rpm. Dyno's are dyno's and would love to see what that motor ran in a car..... Buts the heads were supposedly barely touched and only went 280. The heads I would use I think would likely be just as good, if not better.
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, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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Re: Ideas for a stout stock stroke 340 build.
[Re: B3422W5]
#1673995
09/20/14 12:01 PM
09/20/14 12:01 PM
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Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
master
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master
Joined: Feb 2007
Posts: 2,578
sweden
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Quote:
Stock eliminator build, while trick, is still very limited head and induction wise, the two areas where not having such limits are helpful. I am pretty positive what I want to do isn't that hard. 550 or so isn't that much steam with good heads and combination, even at 340 something inches. I don't want to spin this thing much past 7k either. Shouldn't have to either.
Maybe some skipped my reference couple of posts up to that 340/w9 build that broke 600 horse@ 7000 rpm. Dyno's are dyno's and would love to see what that motor ran in a car..... Buts the heads were supposedly barely touched and only went 280. The heads I would use I think would likely be just as good, if not better.
i have seen that W9 article more than once and its a build that seems like a fun one for sure. however i doubt a procomp head will get even close to what that W9 does,better sparklplugglocation,better chamber and most scertainly those raised ports will do things to power that a flowbench probably never will tell you about.
i think you are going to need 7500rpm shiftpoints and a fairly temperamental cam to make 550Hp and get solidly into the 10´s with any stock replacement type heads, i think with the stock stroke a better head would make these goals alot easier on parts and a nicer running engine with a wider usable range with lower shiftpoints.
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Re: Ideas for a stout stock stroke 340 build.
[Re: B3422W5]
#1674000
09/20/14 03:31 PM
09/20/14 03:31 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
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The down side to a W-9 deal is headers , intake and cooling system. You need to be creative with two and lucky with the other. I'd look at a Super Commando / Indybrock / Procomp kind of deal if you need aluminum or a W-2 if not. 10's is awfully ambitious , but not impossible.
Good post!!
Remember Bondo just went 10.57 with the procomps( first outing) at 9.5 compression in a bench seat swinger. I know the 4 inch crank helps, but no more than3 or 4 tenths, with a relatively small head like that .And I wouldn't be at 9.5 compression either. so make up some power on that front.
Local racer( who sometimes posts on here) has a 340 with J heads and a flat tappet(3100 pound Duster) that has been 11.00's a number of times. His heads go I believe 251max. Ran teens at Norwalk. It's been together a few years now.
Sounds like you had your mind made up and nobody is going to tell you any different. Not sure why you asked for input ??
If you can gain 3-4 tenths with a 5-$600 crank...and have it be more streetable...why wouldn't you ??
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Re: Ideas for a stout stock stroke 340 build.
[Re: ]
#1674001
09/20/14 04:41 PM
09/20/14 04:41 PM
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Joined: Jan 2003
Posts: 11,728 Portage,michigan
B3422W5
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 11,728
Portage,michigan
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Quote:
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The down side to a W-9 deal is headers , intake and cooling system. You need to be creative with two and lucky with the other. I'd look at a Super Commando / Indybrock / Procomp kind of deal if you need aluminum or a W-2 if not. 10's is awfully ambitious , but not impossible.
Good post!!
Remember Bondo just went 10.57 with the procomps( first outing) at 9.5 compression in a bench seat swinger. I know the 4 inch crank helps, but no more than3 or 4 tenths, with a relatively small head like that .And I wouldn't be at 9.5 compression either. so make up some power on that front.
Local racer( who sometimes posts on here) has a 340 with J heads and a flat tappet(3100 pound Duster) that has been 11.00's a number of times. His heads go I believe 251max. Ran teens at Norwalk. It's been together a few years now.
Sounds like you had your mind made up and nobody is going to tell you any different. Not sure why you asked for input ??
If you can gain 3-4 tenths with a 5-$600 crank...and have it be more streetable...why wouldn't you ??
Yes... I do have my mind made up. That's why the title of my post said" ideas on how to make a stout STOCK stroke 340". Instead most everyone keeps saying why not build a stroker instead of stock stroke. I have had a number of strokers. Just want to do something different this time. Doesn't appear many have tried this, I am interested to give it a shot.
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, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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Re: Ideas for a stout stock stroke 340 build.
[Re: B3422W5]
#1674003
09/20/14 06:13 PM
09/20/14 06:13 PM
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Joined: Feb 2007
Posts: 2,578 sweden
1Fast340
master
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master
Joined: Feb 2007
Posts: 2,578
sweden
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Quote:
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The down side to a W-9 deal is headers , intake and cooling system. You need to be creative with two and lucky with the other. I'd look at a Super Commando / Indybrock / Procomp kind of deal if you need aluminum or a W-2 if not. 10's is awfully ambitious , but not impossible.
Good post!!
Remember Bondo just went 10.57 with the procomps( first outing) at 9.5 compression in a bench seat swinger. I know the 4 inch crank helps, but no more than3 or 4 tenths, with a relatively small head like that .And I wouldn't be at 9.5 compression either. so make up some power on that front.
Local racer( who sometimes posts on here) has a 340 with J heads and a flat tappet(3100 pound Duster) that has been 11.00's a number of times. His heads go I believe 251max. Ran teens at Norwalk. It's been together a few years now.
Sounds like you had your mind made up and nobody is going to tell you any different. Not sure why you asked for input ??
If you can gain 3-4 tenths with a 5-$600 crank...and have it be more streetable...why wouldn't you ??
Yes... I do have my mind made up. That's why the title of my post said" ideas on how to make a stout STOCK stroke 340". Instead most everyone keeps saying why not build a stroker instead of stock stroke. I have had a number of strokers. Just want to do something different this time. Doesn't appear many have tried this, I am interested to give it a shot.
i will repeat it,get some real good heads and you can do it, sawing money doing it with "stockstyle" heads is harder than needed and you will get a much better engine with better heads. look at any modern pushrod V8 and see how they make power,they do it with great heads and much milder cams than would be used in oldschool engines with heads that are crap by comparison and i dont care what cnc ported Procomps flow there is much better heads out there but they will cost you more in valvetrain
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Re: Ideas for a stout stock stroke 340 build.
[Re: B3422W5]
#1674004
09/20/14 06:49 PM
09/20/14 06:49 PM
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Joined: Apr 2009
Posts: 3,425 Toronto
mshred
master
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master
Joined: Apr 2009
Posts: 3,425
Toronto
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Quote:
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The down side to a W-9 deal is headers , intake and cooling system. You need to be creative with two and lucky with the other. I'd look at a Super Commando / Indybrock / Procomp kind of deal if you need aluminum or a W-2 if not. 10's is awfully ambitious , but not impossible.
Good post!!
Remember Bondo just went 10.57 with the procomps( first outing) at 9.5 compression in a bench seat swinger. I know the 4 inch crank helps, but no more than3 or 4 tenths, with a relatively small head like that .And I wouldn't be at 9.5 compression either. so make up some power on that front.
Local racer( who sometimes posts on here) has a 340 with J heads and a flat tappet(3100 pound Duster) that has been 11.00's a number of times. His heads go I believe 251max. Ran teens at Norwalk. It's been together a few years now.
Sounds like you had your mind made up and nobody is going to tell you any different. Not sure why you asked for input ??
If you can gain 3-4 tenths with a 5-$600 crank...and have it be more streetable...why wouldn't you ??
Yes... I do have my mind made up. That's why the title of my post said" ideas on how to make a stout STOCK stroke 340". Instead most everyone keeps saying why not build a stroker instead of stock stroke. I have had a number of strokers. Just want to do something different this time. Doesn't appear many have tried this, I am interested to give it a shot.
Build it man! I still wish I kept my engine stock stroke, I love a small engine that can run hard!
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Re: Ideas for a stout stock stroke 340 build.
[Re: mshred]
#1674005
09/21/14 02:02 PM
09/21/14 02:02 PM
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Joined: Oct 2005
Posts: 1,305 Lakewood, Colorado
herkamer
pro stock
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pro stock
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
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I'm building essentially the same thing with my 340. I wanted a mean, fairly streetable 340. This was before stroker cranks were so cheap and readily available. No sense changing plans now. Stock stroke, full hydraulic roller with 11:1 compression, Indybrock heads going in a 69 Dart. A500 trans with 3000 stall, and 4.30 gears should motivate it pretty well and allow some highway jaunts. When I was planning, I ran it through Desktop Dyno and it estimated around 500HP. I have no clue exactly how close that will be to the final product. Back in the 90's I know my brother had a W2 head 340 in a 67 Barracuda race car that ran 11.2 here at 6000' in Denver. Apparently with a 4 speed the car previously ran 10.9 or 10.8. No doubt with the newer parts that could easily replicated and improved upon today. I'm hoping to have mine going before too long, and get some dyno time also. I may put it in another 67 Barracuda to get some seat time with it. Definitely interested in seeing how this thread goes. Perhaps I'll be inspired to get mine done soon!
Matt 69 Dart Swinger 340 83 W350, Megasquirted with 46RH Old news: 72 Demon street/race mobile Latest: 70 Duster backhalf car and even more
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Re: Ideas for a stout stock stroke 340 build.
[Re: B3422W5]
#1674006
09/21/14 06:17 PM
09/21/14 06:17 PM
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Joined: Dec 2005
Posts: 206 ohio
prochamp
enthusiast
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enthusiast
Joined: Dec 2005
Posts: 206
ohio
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hi don.all i run in my cuda is factory stock stroke 340's.one of my combos is ported w2's flat top's at 10:1 comp solid street roller .550 lift 242@.050.victor w2 intake 800 thermoquad.17/8 hedman headers.low gearset 904 trans w 5000 stall 8 inch converter.4.86 83/4 rearend @ 3100lbs went a best of 10.39@ 127 mph.that thing sounds like a stock 340 @ idle with lots of vacuum but has torque like you wouldn't believe from a 340.very streetable.
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