8.1L vs. Super Strokers...?
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From: Chicago, IL
Re: 8.1L vs. Super Strokers...? The stock 8.1L probably doesn't come close to the super strokers as far as head work goes. The stock heads on those are probably set up to make loads of low end torque for towing but not a lot of HP.
Re: 8.1L vs. Super Strokers...? Engine size doesn't automatically mean more power. For example, my old 382ci LS1 made more power than a stock 488ci Viper V10. Its all about head flow and cam specs. Moving the most air in the shortest amount of time.
-Tony
-Tony
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Re: 8.1L vs. Super Strokers...? I don't see that many people trying to do a lot with the 8.1L in their trucks. It would seem that a lot more NA power could be had.
Is it that hard to get more power out of the 8.1L engines than the LS1 variants? Or just very expensive? Engine size does have something to do with it. Otherwise people wouldn't be going to Super Strokers. What keeps the 8.1L from making a lot more power? Bad heads and/or cam? Intake? All of the above?
Is it that hard to get more power out of the 8.1L engines than the LS1 variants? Or just very expensive? Engine size does have something to do with it. Otherwise people wouldn't be going to Super Strokers. What keeps the 8.1L from making a lot more power? Bad heads and/or cam? Intake? All of the above?
Re: 8.1L vs. Super Strokers...? The 8.1L was not designed as a "performance" engine. It is designed for towing and heavy duty applications. It isn't based on the LS1, the heads are much different.
Could someone make some power with one? Of course. But, parts would all have to be custom ($$$$), and the physical engine size is huge, not to mention the huge iron (boat anchor) block.
-Tony
Could someone make some power with one? Of course. But, parts would all have to be custom ($$$$), and the physical engine size is huge, not to mention the huge iron (boat anchor) block.
-Tony
Re: 8.1L vs. Super Strokers...? the 8.1 is a 454 with a 4.5 bore, yes you can make then fly, but physical space limits on the f bod don't make it worthwile. the heads on a 8.1 are called -peanut port- and they suck for anything but towing and low rpm. you will need better heads for more power. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Re: 8.1L vs. Super Strokers...? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 00bluehawk#111:
<strong>the 8.1 is a 454 with a 4.5 bore,</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif"><img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> I thought it was this: 8.1L = 496 CI with a bore of 4.25 and stroke of 4.37.
<strong>the 8.1 is a 454 with a 4.5 bore,</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif"><img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> I thought it was this: 8.1L = 496 CI with a bore of 4.25 and stroke of 4.37.
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Re: 8.1L vs. Super Strokers...? Well since i now have a child i am looking at possibly getting a 4 door vehicle. Such as an avalanche. Maybe in addition to my SS or instead of. Not sure... But i am wondering which way to go on the Av. They either have a 1/2 ton 5.3 with the 4L60 or 3/4 ton 8.1 with 4L80 type setups. I was thinking of the 8.1L possibly as a good platform and bump up it's NA power. But it appears it is harder to get a lot of power out of it NA than i thought.
I can't believe someone hasn't taken one of these 496CI engines and built it for much more NA power yet. Looks like it would be mostly custom (=$$$$ <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> )!
How hard could it be with all these 'Power Wizards' around here? <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />
I am surprised Brooke hasn't done something like this. He has had some interesting projects. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
I can't believe someone hasn't taken one of these 496CI engines and built it for much more NA power yet. Looks like it would be mostly custom (=$$$$ <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> )!
How hard could it be with all these 'Power Wizards' around here? <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />
I am surprised Brooke hasn't done something like this. He has had some interesting projects. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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TECH Addict
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From: as far away from Koonerville as humanly possible
Re: 8.1L vs. Super Strokers...? The marine version is putting out some nice numbers.
Marine 8100
Tom Byrne had/has a set of ported 8.1 heads he was trying to sell. Comp Cams has a few cams to choose from.
Cams
I don't think you can use any of the old big block cranks, because the firing order is different. I don't know of anyone making an aftermarket crank yet, probably won't be for a long time.
Marine 8100
Tom Byrne had/has a set of ported 8.1 heads he was trying to sell. Comp Cams has a few cams to choose from.
Cams
I don't think you can use any of the old big block cranks, because the firing order is different. I don't know of anyone making an aftermarket crank yet, probably won't be for a long time.
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From: Godspeed
Re: 8.1L vs. Super Strokers...? Saturday I saw a 2002 HD with the 8.1. The owner had a custom heads/cam/headers/blower setup done on it, but it could not be dyno'ed due to lift kit and 35" tires.
I felt sheepish driving my stock 2002 HD with a 6.0l home.
I felt sheepish driving my stock 2002 HD with a 6.0l home.
On The Tree
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Re: 8.1L vs. Super Strokers...? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Godspeed:
<strong>Saturday I saw a 2002 HD with the 8.1. The owner had a custom heads/cam/headers/blower setup done on it, but it could not be dyno'ed due to lift kit and 35" tires.
I felt sheepish driving my stock 2002 HD with a 6.0l home.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Sounds interesting.
Any more info???
<strong>Saturday I saw a 2002 HD with the 8.1. The owner had a custom heads/cam/headers/blower setup done on it, but it could not be dyno'ed due to lift kit and 35" tires.
I felt sheepish driving my stock 2002 HD with a 6.0l home.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Sounds interesting.
Any more info???
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8.1L vs. Super Strokers...? Why is it that the 'super strokers' seem to put out so much more power, powerband, than the 8.1L engines?
Are the 8.1L that hard to get a lot of power out of?
I mean some people have whipples on their 8.1L and still dont have as much power as NA Super Strokers. I don't get it. But i am sure some of the techies here have more info. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Are the 8.1L that hard to get a lot of power out of?
I mean some people have whipples on their 8.1L and still dont have as much power as NA Super Strokers. I don't get it. But i am sure some of the techies here have more info. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
