Best heads for stock shortblock?
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Which heads will make the most power on a 350 ci lt1? I'll be buying some heads for my car within the next month but keeping the hotcam for now. I will most likly go with a bigger cam in the future I just want to get the heads out of the way.
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Yea I would go AI or LE or maybe even Golen I heard some good stuff about there CNC heads plus they supply brand new cores for you. Unless I found a good set of aftermarket heads in the F/S section for cheap only bad thing about that is most aftermarket heads will lower you compression with stock pistons.
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Yea I would go AI or LE or maybe even Golen I heard some good stuff about there CNC heads plus they supply brand new cores for you. Unless I found a good set of aftermarket heads in the F/S section for cheap only bad thing about that is most aftermarket heads will lower you compression with stock pistons.
Using out-of-the-box as-is heads is always a poor choice unlesss you're going forced induction.
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well the way I see it is I could get some trick flow heads that flow about 173 out the box for $1010 w/ no down time or have to worry about fixing the broken exhaust bolts on the stock heads. And if i'm not sattisfied and want more power I could always have these ported and flow 200+
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AI/LE stock castings all day. Best bang for the buck.
Now if you dont have a budget some AFR's or TFS heads would be nice but for the price and the fact your on a stock bottom end my vote still stands for the stock castings route.
Now if you dont have a budget some AFR's or TFS heads would be nice but for the price and the fact your on a stock bottom end my vote still stands for the stock castings route.
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well the way I see it is I could get some trick flow heads that flow 273cfm out the box for $1500 (assembled) w/ no down time or have to worry about fixing the broken exhaust bolts on the stock heads. And if i'm not sattisfied and want more power I could always have these ported and flow 300+cfm
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I plan on going with these for the same reasons he stated, as they are comparable to AI 190's or LE2's out of the box, and then still have room for porting above 300 cfm later.
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Well unlike the 23* TrickFlows, the 21* versions have CNC'd chambers, which help produce the numbers that they do, AI said in another thread that the chambers don't really need any work. While being cast ports, I'm sure there is some touching up that could be done, but for a stock shortblock engine, they seem to be great as-cast. We have yet to see anyone try these out yet. For me, I don't have any stock castings to start with anymore, so I will have to pay for core/used, then the cost of porting them. Later I plan on building a stroker, and this way, I would already have a set of aftermarket castings to begin with to get some 215+cc, 300+cfm heads. Still undecided personally, unless I see some nice used AI/LE heads for sale priced cheap once I'm ready to buy.
However to the original poster, yes, for the most power on a stock shortblock, you could go LE2, or AI 200's paired with a custom cam would give you the most power.
However to the original poster, yes, for the most power on a stock shortblock, you could go LE2, or AI 200's paired with a custom cam would give you the most power.
Last edited by kgkern01; 01-22-2010 at 01:35 PM.
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Well I'm for sure getting the trick flows. They might not flow 275cfm but LE2 arnt exactly 275 either only the AI's are garanteed to flow 275 as they are cnc'd. Ill be getting them w/ my tax's and will post up the #'s once I get it dynotuned. I think they will perform just like the LE2 or prity dam close.