LS3 small bore heads or TFS 215s
#1
LS3 small bore heads or TFS 215s
Right now I am currently running a G5x3 clone cam from comp cams, and stock 243s(milled for compression) with upgraded springs. I am looking at doing a head swap this winter or late spring this coming year. I have been looking at doing the TFS 215s as every has been putting good power down and they are suppose to good for nitrous. I have a forged shortblock for nitrous so they are no worries there. Recently i stumbled on these ls3 heads for small bore. I want to hear from some ppl on what I should do, just get the TFS or try out these ls3s?
I have a FAST intake so i think could recoup about $600 dollars on that, sell my current heads for $400(I don't know what they would go for). Then purchase a ls3($300) intake and rockers($400?). Probably would need to get fuel rails for sure, would I have to change my injectors? The car makes 400rwhp and 400trq right now and I am looking for 450+ to the wheels.
Here are some flow numbers on the ls3 heads from MASTmotorsports:
Flow Data w/ 3.900" Bore Plate
Lift | Intake | Exhaust
.100 | 76 | 57
.200 | 147 | 110
.300 | 218 | 172
.400 | 274 | 214
.500 | 318 | 234
.550 | 333 | 242
.600 | 342 | 248
.650 | 349 | 252
.700 | 353 | 257
Flow numbers for the TFS 215s
Lift Int Ex
.100 - 68- 55
.200 - 142 -115
.300 - 215 -185
.400 - 260 -230
.500 - 300 -251
.600 - 320 -259
I really like the idea of running these ls3 heads but i just don't know if it is worth it or not. I want to hear what everyone has to say, maybe some one has these heads already?
I have a FAST intake so i think could recoup about $600 dollars on that, sell my current heads for $400(I don't know what they would go for). Then purchase a ls3($300) intake and rockers($400?). Probably would need to get fuel rails for sure, would I have to change my injectors? The car makes 400rwhp and 400trq right now and I am looking for 450+ to the wheels.
Here are some flow numbers on the ls3 heads from MASTmotorsports:
Flow Data w/ 3.900" Bore Plate
Lift | Intake | Exhaust
.100 | 76 | 57
.200 | 147 | 110
.300 | 218 | 172
.400 | 274 | 214
.500 | 318 | 234
.550 | 333 | 242
.600 | 342 | 248
.650 | 349 | 252
.700 | 353 | 257
Flow numbers for the TFS 215s
Lift Int Ex
.100 - 68- 55
.200 - 142 -115
.300 - 215 -185
.400 - 260 -230
.500 - 300 -251
.600 - 320 -259
I really like the idea of running these ls3 heads but i just don't know if it is worth it or not. I want to hear what everyone has to say, maybe some one has these heads already?
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#9
Well if you get a set of TFS 215s and rockers your pretty much at 3k. I know that AFR has a new 215 head coming out soon too. It just when is going to be available and when are we going to have solid numbers on that head as well.
Other question is are we ever going to get solid numbers on the ls3 heads? If I had the money to test them I sure in the hell would, but I don't!
Other question is are we ever going to get solid numbers on the ls3 heads? If I had the money to test them I sure in the hell would, but I don't!