View Poll Results: What valves should I go with??
The ones on there already (2.02/1.57)
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10
58.82%
The bigger ones (2.055/1.60)
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![](https://ls1tech.com/forums/clear.gif)
7
41.18%
Voters: 17. You may not vote on this poll
Larger valves with Patriot 5.3s?? VOTE
#1
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Hey, I'm getting some used Patriot 5.3s with 2.02 and 1.57 Ferrea valves.
Gunnar told me I could send them in and pay to upgrade them to the 2.055 and 1.60 valves if I liked
Some people have told me that if I went with larger valves I would screw up my port velocity and lower my overall torque numbers. What do you all think? Here are the flow numbers for both valve sizes.
Intake Exhaust
Lift 2.02 1.57
.1 67 61
.2 133 108
.3 194 147
.4 242 183
.5 274 205
.55 290 213
.6 296 220
Intake Exhaust
Lift 2.055 1.60
.1 70 66
.2 149 113
.3 210 152
.4 251 189
.5 284 215
.55 293 225
.6 302 230
I'll be running all the mods in my sig plus a 228R cam. Should I go with the larger valves for a little bit more money, or should I stay with the smaller ones? VOTE and explain your reasons please.
Gunnar told me I could send them in and pay to upgrade them to the 2.055 and 1.60 valves if I liked
Some people have told me that if I went with larger valves I would screw up my port velocity and lower my overall torque numbers. What do you all think? Here are the flow numbers for both valve sizes.
Intake Exhaust
Lift 2.02 1.57
.1 67 61
.2 133 108
.3 194 147
.4 242 183
.5 274 205
.55 290 213
.6 296 220
Intake Exhaust
Lift 2.055 1.60
.1 70 66
.2 149 113
.3 210 152
.4 251 189
.5 284 215
.55 293 225
.6 302 230
I'll be running all the mods in my sig plus a 228R cam. Should I go with the larger valves for a little bit more money, or should I stay with the smaller ones? VOTE and explain your reasons please.
#2
LS1 Tech Administrator
iTrader: (14)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by SVT THIS
Hey, I'm getting some used Patriot 5.3s with 2.02 and 1.57 Ferrea valves.
Gunnar told me I could send them in and pay to upgrade them to the 2.055 and 1.60 valves if I liked
Some people have told me that if I went with larger valves I would screw up my port velocity and lower my overall torque numbers. What do you all think? Here are the flow numbers for both valve sizes.
Intake Exhaust
Lift 2.02 1.57
.1 67 61
.2 133 108
.3 194 147
.4 242 183
.5 274 205
.55 290 213
.6 296 220
Intake Exhaust
Lift 2.055 1.60
.1 70 66
.2 149 113
.3 210 152
.4 251 189
.5 284 215
.55 293 225
.6 302 230
I'll be running all the mods in my sig plus a 228R cam. Should I go with the larger valves for a little bit more money, or should I stay with the smaller ones? VOTE and explain your reasons please.
Gunnar told me I could send them in and pay to upgrade them to the 2.055 and 1.60 valves if I liked
Some people have told me that if I went with larger valves I would screw up my port velocity and lower my overall torque numbers. What do you all think? Here are the flow numbers for both valve sizes.
Intake Exhaust
Lift 2.02 1.57
.1 67 61
.2 133 108
.3 194 147
.4 242 183
.5 274 205
.55 290 213
.6 296 220
Intake Exhaust
Lift 2.055 1.60
.1 70 66
.2 149 113
.3 210 152
.4 251 189
.5 284 215
.55 293 225
.6 302 230
I'll be running all the mods in my sig plus a 228R cam. Should I go with the larger valves for a little bit more money, or should I stay with the smaller ones? VOTE and explain your reasons please.
FWIW, I made the power in my signature with 2.02 valves.
__________________
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
![](https://ls1tech.com/forums/signaturepics/sigpic210_1.gif)
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
#4
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Originally Posted by JZ'sTA
Stock valves even work very well on many combo's.
I would stick with what you have and invest the extra money elsewhere.
I would stick with what you have and invest the extra money elsewhere.
Brandon