Mast LS3 Small Bore Heads
#1
Mast LS3 Small Bore Heads
Looking to see if anyone has any impressions of THESE heads... What cams have they used, HP/TQ #'s as well as any track times.
I've talked to Damon @ Mast about them and even though they sell them, nobody has really provided any feedback.
First off, I know they are more "optimal" for a stroker 3.9 bore, and that's soon to come. Damon said they would be a bit lazy below 4-4.5k, but that they'd turn on like a f*cking LIGHT SWITCH there after.
With 4.10 gears, I couldn't imagine it being that bad, as well as an OPTIMIZED camshaft from FTI.
Anyone have any thoughts or contributions?
I've talked to Damon @ Mast about them and even though they sell them, nobody has really provided any feedback.
First off, I know they are more "optimal" for a stroker 3.9 bore, and that's soon to come. Damon said they would be a bit lazy below 4-4.5k, but that they'd turn on like a f*cking LIGHT SWITCH there after.
With 4.10 gears, I couldn't imagine it being that bad, as well as an OPTIMIZED camshaft from FTI.
Anyone have any thoughts or contributions?
#3
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I can't see the benefit unless you are going to mount a blower that has a rectangular port manifold... Obviously there are a lot more options in the rectangular port so I do see the benefit there. But that said, I just priced these on MAST's website... $3600+ for the black label small bores as spec'd. And that's not even the most expensive options.
Edit: let me phrase that differently. Obviously there would be a benefit. But the cost/benefit would be high/low. Why not add a supercharger to your current setup?
Edit: let me phrase that differently. Obviously there would be a benefit. But the cost/benefit would be high/low. Why not add a supercharger to your current setup?
Last edited by ryridesmotox; 09-28-2013 at 11:39 AM.
#5
I can't see the benefit unless you are going to mount a blower that has a rectangular port manifold... Obviously there are a lot more options in the rectangular port so I do see the benefit there. But that said, I just priced these on MAST's website... $3600+ for the black label small bores as spec'd. And that's not even the most expensive options. Edit: let me phrase that differently. Obviously there would be a benefit. But the cost/benefit would be high/low. Why not add a supercharger to your current setup?
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#11
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Perhaps there is a VERY good reason why they aren't popular
The same money will get you TFS or AFR heads, and anyone would be a fool to pass those up over a ported LS3.
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If by surprising you mean, "wow look at all that money he spent to make the same power as a budget 5.3 head combo", then I agree.
Perhaps there is a VERY good reason why they aren't popular
The same money will get you TFS or AFR heads, and anyone would be a fool to pass those up over a ported LS3.
Perhaps there is a VERY good reason why they aren't popular
The same money will get you TFS or AFR heads, and anyone would be a fool to pass those up over a ported LS3.
#15
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If by surprising you mean, "wow look at all that money he spent to make the same power as a budget 5.3 head combo", then I agree.
Perhaps there is a VERY good reason why they aren't popular
The same money will get you TFS or AFR heads, and anyone would be a fool to pass those up over a ported LS3.
Perhaps there is a VERY good reason why they aren't popular
The same money will get you TFS or AFR heads, and anyone would be a fool to pass those up over a ported LS3.
The LS3 heads are a good head on a "modest budget", but when you take out the "modest budget" part, there are better options.
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I agree with Dr. Whigham here, if we can see some solid results from LS3 small bores and the pricing can be reasonable, there maybe a move away from the cathedral group think. Don't get me wrong I am currently running cathedrals, and they make good power, but there is a reason the new LT engine family is running square ports.
I truly feel the reason shops like to push cathedral heads is because they KNOW what the results will be. Since most shops aren't sure of the results of small bore LS3's they won't push them b/c of what a customer may expect. Also, they aren't sure of what cam would be good with the small bores since there is so little experience with them out there. ED is'nt scare here, and I look forward to your combo setup Dr!
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