Re: How much Faster 4.00 stroker
[Re: barracuda man]
#885922
12/23/10 12:15 AM
12/23/10 12:15 AM
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Joined: Jul 2010
Posts: 2,091
Delray beach, Florida
Performance Only
top fuel
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top fuel
Joined: Jul 2010
Posts: 2,091
Delray beach, Florida
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if you leave EVERYTHING the same, you'll have a high torque low reving combo. SB strokers have different component requirements than a stock stroke combo.
machine shop owner and engine builder
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Re: How much Faster 4.00 stroker
[Re: Performance Only]
#885923
12/23/10 12:37 AM
12/23/10 12:37 AM
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Joined: Jan 2007
Posts: 526
NC
barracuda man
OP
mopar
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OP
mopar
Joined: Jan 2007
Posts: 526
NC
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Quote:
if you leave EVERYTHING the same, you'll have a high torque low reving combo. SB strokers have different component requirements than a stock stroke combo.
Lets say i keep the rpm air gap and Eddy 340 heads.Will it run faster at 416cu. 
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Post deleted by moparts
[Re: ademon]
#885927
12/23/10 03:04 PM
12/23/10 03:04 PM
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Anonymous
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Anonymous
Unregistered
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Re: How much Faster 4.00 stroker
#885928
12/23/10 04:49 PM
12/23/10 04:49 PM
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Joined: Jan 2003
Posts: 11,718
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,718
Portage,michigan
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Long, long time ago i had a 340( original motor) in my 70 Duster. I had added bolt ons, and then put eddie heads on it. I had Hensley build me a 416 using my heads and a core block they had in inventory. I asked Ken Hensley how much better a 416 would run than a 340 if they both had the same heads, headers, intake,cam and carb.He told me 3 or 4 tenths. I went with about 1 more point in compression, a bigger cam, and had the heads stage 2 ported at that time, so some definate changes over how the 340 was set up. I threw the 416 in the car and it picked up a touch over a full second over the 340. But, bit more squeeze, more lift and duration on the cam, and the stage 2 port job. Convertor, gears, carb and intake, headers remainded the same.   Your results may vary. IMO, with a 2 sizes to small head like an eddie on a 416, the gains wont be as significan on a stroker over a stock stroke motor( but as i said above, still very noticable) with good heads more suited to a stroker( Indy, W5, etc,) the gains going to a stroker and swapping those " good" heads over might be a good bit better, perhaps.
Last edited by B3422W5; 12/23/10 04:51 PM.
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, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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Re: How much Faster 4.00 stroker
[Re: B3422W5]
#885929
12/23/10 09:38 PM
12/23/10 09:38 PM
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Joined: Jan 2007
Posts: 526
NC
barracuda man
OP
mopar
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OP
mopar
Joined: Jan 2007
Posts: 526
NC
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Quote:
Long, long time ago i had a 340( original motor) in my 70 Duster. I had added bolt ons, and then put eddie heads on it. I had Hensley build me a 416 using my heads and a core block they had in inventory. I asked Ken Hensley how much better a 416 would run than a 340 if they both had the same heads, headers, intake,cam and carb.He told me 3 or 4 tenths.
I went with about 1 more point in compression, a bigger cam, and had the heads stage 2 ported at that time, so some definate changes over how the 340 was set up. I threw the 416 in the car and it picked up a touch over a full second over the 340.
But, bit more squeeze, more lift and duration on the cam, and the stage 2 port job. Convertor, gears, carb and intake, headers remainded the same.
Your results may vary. IMO, with a 2 sizes to small head like an eddie on a 416, the gains wont be as significan on a stroker over a stock stroke motor( but as i said above, still very noticable) with good heads more suited to a stroker( Indy, W5, etc,)
the gains going to a stroker and swapping those " good" heads over might be a good bit better, perhaps.
This is what i won't to here.   
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