My new TFS 235cc heads--flow #'s
07-30-2007, 11:26 PM
#1
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My new TFS 235cc heads--flow #'s I received my 235cc TFS heads today from TEA and they are sweet. I had them milled .010 to get my compression up a bit. I tried to take pictures but they turned out bad. These are going on a 421 iron block stroker. Here are the flow numbers:
LIFT INTAKE EXHAUST
.100 67.1 57.2
.200 147.1 123.5
.300 237.0 206.5
.400 292.5 250.4
.500 331.7 269.2
.550 342.0 275.6
.600 350.2 278.3
The intake valves are 2.08" and the exhaust valves are 1.60". My cam will be small (for this size motor) as I'm going with a G5X4. Motor should be done within the next month.
LIFT INTAKE EXHAUST
.100 67.1 57.2
.200 147.1 123.5
.300 237.0 206.5
.400 292.5 250.4
.500 331.7 269.2
.550 342.0 275.6
.600 350.2 278.3
The intake valves are 2.08" and the exhaust valves are 1.60". My cam will be small (for this size motor) as I'm going with a G5X4. Motor should be done within the next month.
07-31-2007, 10:40 AM
#2
The mid lift flow number are insane. Great looking heads. Should make killer power, even with the 240/244 111LSA cam. The X4 is not what I would consider small on a 421. It's more mid-size. Kinda like a 228 cam in a 346. Good luck!
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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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
07-31-2007, 11:44 AM
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Thanks Patrick. With the right intake and headers, what kind of power do you think it can make? Also, do you think it will have any lope at idle or will it be pretty tame? Thanks.
07-31-2007, 11:50 AM
#4
With a ported intake/tb and 1 7/8" headers, you should easily see 550 rwhp which is phenomenal for a cam of this size. You will know it has a cam in it, but it will be easy to tune. Not totally tame, but pretty mild. The kind of setup I'd drive anywhere.
__________________
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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
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07-31-2007, 08:37 PM
#8
Whee. Even with a milder cam that thing will flat out make some power.
Ron was saying that the Vindicator with the TFS 225s is good for about 540-550 in a 402. Since the G5X4 and Vindicator are pretty similar, if you add some cubes to that and a bit more mid-range flow, you should definitely see 550rwhp with the appropriate bolt-ons and compression.
Ron was saying that the Vindicator with the TFS 225s is good for about 540-550 in a 402. Since the G5X4 and Vindicator are pretty similar, if you add some cubes to that and a bit more mid-range flow, you should definitely see 550rwhp with the appropriate bolt-ons and compression.
07-31-2007, 09:45 PM
#9
Originally Posted by Indiana Z06
I received my 235cc TFS heads today from TEA and they are sweet. I had them milled .010 to get my compression up a bit. I tried to take pictures but they turned out bad. These are going on a 421 iron block stroker. Here are the flow numbers:
LIFT INTAKE EXHAUST
.100 67.1 57.2
.200 147.1 123.5
.300 237.0 206.5
.400 292.5 250.4
.500 331.7 269.2
.550 342.0 275.6
.600 350.2 278.3
The intake valves are 2.08" and the exhaust valves are 1.60". My cam will be small (for this size motor) as I'm going with a G5X4. Motor should be done within the next month.
LIFT INTAKE EXHAUST
.100 67.1 57.2
.200 147.1 123.5
.300 237.0 206.5
.400 292.5 250.4
.500 331.7 269.2
.550 342.0 275.6
.600 350.2 278.3
The intake valves are 2.08" and the exhaust valves are 1.60". My cam will be small (for this size motor) as I'm going with a G5X4. Motor should be done within the next month.
08-01-2007, 11:55 AM
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Originally Posted by 99blancoSS
Those are pretty close to the same numbers on the website, did you have them flowed after they were milled? Is that what those numbers are?
