408 predictions
#1
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408 predictions
The block is at the machine shop and i have just about got all the other parts on hand or on order. As always, spent more than i thought, anyways just trying to get some predictions on the power the new setup will make
6.0L 408 stroker
Callies Compstar Crank and rods
Wiseco -3cc pistons
custom grind Comp Cam 231/239 .617/.623 114 LSA
ls3 intake
LS3 heads with runners smoothed out with good springs
102mm lid,maf, and TB
Yella Terra Rockers
1 3/4 QTP LT Headers
Yank 4000ss stall
built tranny
strange 12 bolt rearend with 3.91 gears
magna flow without cats
I'm hoping for 480/480 what do you think...
6.0L 408 stroker
Callies Compstar Crank and rods
Wiseco -3cc pistons
custom grind Comp Cam 231/239 .617/.623 114 LSA
ls3 intake
LS3 heads with runners smoothed out with good springs
102mm lid,maf, and TB
Yella Terra Rockers
1 3/4 QTP LT Headers
Yank 4000ss stall
built tranny
strange 12 bolt rearend with 3.91 gears
magna flow without cats
I'm hoping for 480/480 what do you think...
Last edited by jhall; 01-28-2011 at 08:02 PM.
#4
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Why do you think I should ditch the rockers? They are a little pricey but after the beariing upgrade to the stock rockers and actually picking up a set, i figured I would only be out $200.00 or so.
#5
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I think why he is saying that is the stamped steel stockers are stronger and lighter. Proper spring though and the weight won't be an issue. And the wipe on the valve tip can be set narrower with the YT's if you take the time to do it which you should since your cam has decent lift... vettenuts has a good "how to" writeup in gen III internal if you can find it.
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#9
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Damn no love for the Terra's. I have them on order now. I have been told due to the rather high lift on the cam the wipe on the valves will be better with these rockers also I like the fact that the needle bearings are sealed compared to the stockers. Any bad info on the Terra's I dont know about? I may be able to ship them back minus shipping if there is **** i dont know about them.
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The block is at the machine shop and i have just about got all the other parts on hand or on order. As always, spent more than i thought, anyways just trying to get some predictions on the power the new setup will make
6.0L 408 stroker
Callies Compstar Crank and rods
Wiseco -3cc pistons
custom grind Comp Cam 231/239 .617/.623 114 LSA
ls3 intake
LS3 heads with runners smoothed out with good springs
102mm lid,maf, and TB
Yella Terra Rockers
1 3/4 QTP LT Headers
Yank 4000ss stall
built tranny
strange 12 bolt rearend with 3.91 gears
magna flow without cats
I'm hoping for 480/480 what do you think...
6.0L 408 stroker
Callies Compstar Crank and rods
Wiseco -3cc pistons
custom grind Comp Cam 231/239 .617/.623 114 LSA
ls3 intake
LS3 heads with runners smoothed out with good springs
102mm lid,maf, and TB
Yella Terra Rockers
1 3/4 QTP LT Headers
Yank 4000ss stall
built tranny
strange 12 bolt rearend with 3.91 gears
magna flow without cats
I'm hoping for 480/480 what do you think...
#14
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The block is at the machine shop and i have just about got all the other parts on hand or on order. As always, spent more than i thought, anyways just trying to get some predictions on the power the new setup will make
6.0L 408 stroker
Callies Compstar Crank and rods
Wiseco -3cc pistons
custom grind Comp Cam 231/239 .617/.623 114 LSA
ls3 intake
LS3 heads with runners smoothed out with good springs
102mm lid,maf, and TB
Yella Terra Rockers
1 3/4 QTP LT Headers
Yank 4000ss stall
built tranny
strange 12 bolt rearend with 3.91 gears
magna flow without cats
I'm hoping for 480/480 what do you think...
6.0L 408 stroker
Callies Compstar Crank and rods
Wiseco -3cc pistons
custom grind Comp Cam 231/239 .617/.623 114 LSA
ls3 intake
LS3 heads with runners smoothed out with good springs
102mm lid,maf, and TB
Yella Terra Rockers
1 3/4 QTP LT Headers
Yank 4000ss stall
built tranny
strange 12 bolt rearend with 3.91 gears
magna flow without cats
I'm hoping for 480/480 what do you think...
#15
TECH Fanatic
iTrader: (7)
It will certainly be a drivable setup, other than the 4000 stall you have and will make a great torque line (probably wouldn't call it a curve more than likely). I will be another to say 1 7/8" longtubes, hitting 402/408 is where the difference will begin to show. I would stick with the Yellas though, if you move to a TFS head later then roller rockers are required. Post up those #'s fella, curious to see what she does all said and done.
#17
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Compression should be 11:2 to 1 or so. I'm sure the dyno numbers will not be stellar going through my drive line and all, I definally will not be locking the converter. I,ve heard the Circle D converters can take it but not going to chance it with the Yank.Motor is still at the machine shop and still gathering a few of the odds and ins for the build.May be installing the heads unported due to the money I have been spending on this.I figure when i need a little more i may slap a 125 shot or so on it. Goal for install is 2-3 weeks. My last setup only put down 385/370 and ran 11.7 so I will be baseing the improvements from there.