So this isn't good is it? A460 Head Flow Numbers

While we had the motor down to put new bearings in it I had a chance to take my Ford Motorsport A460 heads and have them flowed on a superflow 600 at 28" with a pipe. The heads only flowed 404 @ 800 lift. These heads were bought off a 598 engine that supposedly made 993 hp @7100 and 837 tq @5900 with a single 1150 dominator. Is this even possible with peak flow numbers that low? I paid high dollar for these heads since they were SO WORKED by a guy in Ga lol. I think I got bent.

OUCH

Randy

Those numbers aren't much better than out of the box. I can't say anything about the machine they were tested on, but it may be out of calibration or slightly off. What kind of #'s do you have with your combo now, or any time slips? Those can be put in the Wallace calculator to see where you are now with power levels.

schmitty wrote:Those numbers aren't much better than out of the box. I can't say anything about the machine they were tested on, but it may be out of calibration or slightly off. What kind of #'s do you have with your combo now, or any time slips? Those can be put in the Wallace calculator to see where you are now with power levels.

I have ran a best of 8.50 @ 160 mph at 400 feet above sea level with the 28X10.5 at 3220# with a 28n/24f @ 5.75 psi fuel. Nitrous coming on 10th out ramping in at 1.2 sec.

https://www.youtube.com/watch?v=NIhMva0JDYA

Thanks for the mentioning the Wallace site. Looks like a good site. Alot of Pontiac info too.I have been known to flog a 69 Lemans from time to time LOL.
Bob

schmitty wrote:Those numbers aren't much better than out of the box. I can't say anything about the machine they were tested on, but it may be out of calibration or slightly off. What kind of #'s do you have with your combo now, or any time slips? Those can be put in the Wallace calculator to see where you are now with power levels.

How do you figure that......TFS w/2.350" intake valves are more than that.

Lem Evans wrote:

schmitty wrote:Those numbers aren't much better than out of the box. I can't say anything about the machine they were tested on, but it may be out of calibration or slightly off. What kind of #'s do you have with your combo now, or any time slips? Those can be put in the Wallace calculator to see where you are now with power levels.

How do you figure that......TFS w/2.350" intake valves are more than that.

Mine do have the 2.35 intake valve.

wreckless4thf wrote:

Lem Evans wrote:

schmitty wrote:Those numbers aren't much better than out of the box. I can't say anything about the machine they were tested on, but it may be out of calibration or slightly off. What kind of #'s do you have with your combo now, or any time slips? Those can be put in the Wallace calculator to see where you are now with power levels.

How do you figure that......TFS w/2.350" intake valves are more than that.

Mine do have the 2.35 intake valve.

I believe out of the box they are 413@.800 or so, at least that's close.

Nevs,

Is that the TFS or the original Motorsport A460's?

Top Sportsman 514X wrote:Nevs,

Is that the TFS or the original Motorsport A460's?

TFS

PowerPort A460 340 Cylinder Heads for Big Block Ford, Standard Bolt Pattern
Lift Value Intake Flow CFM Exhaust Flow CFM
.100" 72 68
.200" 142 121
.300" 213 164
.400" 271 202
.500" 325 235
.600" 365 262
.700" 395 284
.800" 412 300
Tests conducted at 28" of water (pressure). Bore size: 4.500"; intake valve: 2.300"
Standard bolt pattern; exhaust with 2" pipe.

From the TFS website, with the 2.300" intake valve.

I am saying...the new TFS A460 style heads with the 2.350" intake valve option will flow more than 404 cfm...more than 410 cfm....more than 420 cfm. This is observed,,,not some in print b.s.

What about the old style Motorsport?

Top Sportsman 514X wrote:What about the old style Motorsport?

I had a set of the old style deals that flowed 440's in 1989.

I really just want to know if the 992 hp levels are achievable with a head that flows 404 cfm. If so, then the superflow may have been correct and the man I bought them from as well. I just need to find out what is going on and if I need to send the heads to Charlie.

Lem Evans wrote:

Top Sportsman 514X wrote:What about the old style Motorsport?

I had a set of the old style deals that flowed 440's in 1989.

Were they ported?

Sure they were.

This is a TFS A-460 with a 2.300

Flow Data
Lift Intake Exhaust All Testing Done @ 28”
.100” 72 64 Water PSI.
.200” 142 132 Measured In CFM.
.250” 177 140 2.300” Intake Valve.
.300” 213 156 1.880” Exhaust Valve.
.350” 241 173 As Cast, No Porting.
.400” 271 190
.450” 297 207
.500” 325 222
.550” 345 238
.600” 365 250
.650” 381 260
.700” 395 268
.750” 406 276
.800” 412 280

OPPS, I'm a little slow there, I see it was already posted.

Lem Evans wrote:Sure they were.

K, so a motorsport a460 head with the 2.35 intake valve would flow near 404 out of the box then right?

racnrick wrote:This is a TFS A-460 with a 2.300

Flow Data
Lift Intake Exhaust All Testing Done @ 28”
.100” 72 64 Water PSI.
.200” 142 132 Measured In CFM.
.250” 177 140 2.300” Intake Valve.
.300” 213 156 1.880” Exhaust Valve.
.350” 241 173 As Cast, No Porting.
.400” 271 190
.450” 297 207
.500” 325 222
.550” 345 238
.600” 365 250
.650” 381 260
.700” 395 268
.750” 406 276
.800” 412 280

Mine has the 2.35

Not to bad mouth the people that flow heads but from what I have seen you can make a set of heads flow whatever you want. I took my SBF victor sr heads to a very reputable head porter to verify the flow sheets that I had for them and they only flowed 317 cfm at .800". My motor made close to 800hp on Keith Crafts engine dyno. I took them to a different guy using the same machine and he got over 390cfm. My flow sheets said a little more than 380 max. So which one was right?

I dipped into the 5.80's with a 3000lbs car NA with this motor. MPH is a better factor for performance than flow numbers.

whatbumper wrote:Not to bad mouth the people that flow heads but from what I have seen you can make a set of heads flow whatever you want. I took my SBF victor sr heads to a very reputable head porter to verify the flow sheets that I had for them and they only flowed 317 cfm at .800". My motor made close to 800hp on Keith Crafts engine dyno. I took them to a different guy using the same machine and he got over 390cfm. My flow sheets said a little more than 380 max. So which one was right?

I dipped into the 5.80's with a 3000lbs car NA with this motor. MPH is a better factor for performance than flow numbers.

That would be a possibility if the guy flowing the heads werent' my best friend and crew on my car lol. Now the flow bench might be off or something. But on the other website a guy said those numbers were obtainable with 404 cfm. I didn't think so but one has spoke and said they were.

wreckless4thf wrote:

racnrick wrote:This is a TFS A-460 with a 2.300

Flow Data
Lift Intake Exhaust All Testing Done @ 28”
.100” 72 64 Water PSI.
.200” 142 132 Measured In CFM.
.250” 177 140 2.300” Intake Valve.
.300” 213 156 1.880” Exhaust Valve.
.350” 241 173 As Cast, No Porting.
.400” 271 190
.450” 297 207
.500” 325 222
.550” 345 238
.600” 365 250
.650” 381 260
.700” 395 268
.750” 406 276
.800” 412 280

Mine has the 2.35

I think my A-460's with 2.350 intakes were about 420-430 out of the box, then after Charlie got done with them they were 470. I don't have the sheet handy right now.

wreckless4thf wrote:

Lem Evans wrote:Sure they were.

K, so a motorsport a460 head with the 2.35 intake valve would flow near 404 out of the box then right?

The SVO A460's came BARE....no valve job...there was no "out of the box" standard.

wreckless4thf wrote:While we had the motor down to put new bearings in it I had a chance to take my Ford Motorsport A460 heads and have them flowed on a superflow 600 at 28" with a pipe. The heads only flowed 404 @ 800 lift. These heads were bought off a 598 engine that supposedly made 993 hp @7100 and 837 tq @5900 with a single 1150 dominator. Is this even possible with peak flow numbers that low? I paid high dollar for these heads since they were SO WORKED by a guy in Ga lol. I think I got bent.

first , what size pipe did you flow them on?

-rich