Which heads for my supercharged ls3? tfs255 or ported lsa?
#1
Which heads for my supercharged ls3? tfs255 or ported lsa?
I have a set of new lsa heads that I have been thinking about getting ported, but have been looking at the tfs 255's also. Which is going to be better? These will be going on a sbe 6.0L with a ysi. Thanks
Ryan
Ryan
#3
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I have a pair if the tfs 255's, by what I have seen they outflow any cnc ls3/lsa head and when yiur send a ls3 ir ksa head out they increase the port to sonething around 260-270cc and still the 255's outflow them which means youll have more under the curve. If you plan to build something serious later on I would do it just for deck thickness but as far as power gains im unsure how much more youll see in a boost application. .. if I had to guess 30-40 up top and a little more under the curve
#4
Flow numbers don't look too much different between the two. The tfs flow more on the intake, but with a larger bore 4.0 vs 4.06. The lsa flow 20-30cfm more on the exhaust, which I think would help alot with the supercharger. The lsa's end up being more money after porting and I know that the deck isn't as thick as the tfs heads. So not sure if I wanna put the money into them or just sell them and get the tfs heads.
Ryan
Ryan
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53te39 (01-13-2021)
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Flow numbers don't look too much different between the two. The tfs flow more on the intake, but with a larger bore 4.0 vs 4.06. The lsa flow 20-30cfm more on the exhaust, which I think would help alot with the supercharger. The lsa's end up being more money after porting and I know that the deck isn't as thick as the tfs heads. So not sure if I wanna put the money into them or just sell them and get the tfs heads.
Ryan
Ryan