Re: TF270 Heads....HP
[Re: AndyF]
#3172285
09/02/23 11:43 AM
09/02/23 11:43 AM
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Joined: Jan 2003
Posts: 14,514 So. Burlington, Vt.
fast68plymouth
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My feeling is that the 440-1 head, on a suitably sized short block, is the “easy button” for getting past the 800hp mark.
I also feel that the added port volume of the EZ 295 and 325 are going to have more potential as the power levels start to exceed 700hp...........with the bigger heads proving their worth as the cubes/desired rpm/power go up.
However, for around 500” and say up to say 725-ish hp, dollar for dollar it’s going to be hard to beat a TF270.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: TF270 Heads....HP
[Re: fast68plymouth]
#3172293
09/02/23 11:58 AM
09/02/23 11:58 AM
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Joined: Jan 2003
Posts: 8,182 Plymouth, MI
Blusmbl
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master
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Posts: 8,182
Plymouth, MI
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The Indy heads seem to wake up some with porting, and I've seen a few people change the 295/325 intake valve to 2.25 to pick up some additional flow. Would the Trick Flow 270's benefit any from porting or are they pretty much tapped out since they started as the 240 casting?
For a wedge with stock exhaust port location it doesn't sound like there are any better options than the max wedge sized EZ's, or the TF270.
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
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Re: TF270 Heads....HP
[Re: Blusmbl]
#3172294
09/02/23 12:04 PM
09/02/23 12:04 PM
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Joined: Jan 2003
Posts: 4,287 Morrow, OH
markz528
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master
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Posts: 4,287
Morrow, OH
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Ootb TF270 on pump gas 713 hp/709 torque. Street car motor.
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
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Re: TF270 Heads....HP
[Re: Blusmbl]
#3172309
09/02/23 12:58 PM
09/02/23 12:58 PM
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Joined: Jan 2003
Posts: 14,514 So. Burlington, Vt.
fast68plymouth
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I Live Here
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The Indy heads seem to wake up some with porting, and I've seen a few people change the 295/325 intake valve to 2.25 to pick up some additional flow. Would the Trick Flow 270's benefit any from porting or are they pretty much tapped out since they started as the 240 casting?
For a wedge with stock exhaust port location it doesn't sound like there are any better options than the max wedge sized EZ's, or the TF270. It should probably be mentioned that in “ootb” form, the TF heads are consistently good. The Indys often should really get some tweaking to the valve job and the way the valve job is blended into the bowls and chambers. In one extreme example, I had some SR 295’s that picked up over 30cfm on the exhaust side by re-cutting the seats and blending.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: TF270 Heads....HP
[Re: fast68plymouth]
#3172310
09/02/23 01:01 PM
09/02/23 01:01 PM
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Joined: Jan 2003
Posts: 5,486 SoCal
Brian Hafliger
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Posts: 5,486
SoCal
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The Indy heads seem to wake up some with porting, and I've seen a few people change the 295/325 intake valve to 2.25 to pick up some additional flow. Would the Trick Flow 270's benefit any from porting or are they pretty much tapped out since they started as the 240 casting?
For a wedge with stock exhaust port location it doesn't sound like there are any better options than the max wedge sized EZ's, or the TF270. It should probably be mentioned that in “ootb” form, the TF heads are consistently good. The Indys often should really get some tweaking to the valve job and the way the valve job is blended into the bowls and chambers. In one extreme example, I had some SR 295’s that picked up over 30cfm on the exhaust side by re-cutting the seats and blending. Last I heard Indy cancelled the 325 heads due to casting control problems...is this still true Dwayne?
Brian Hafliger
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Re: TF270 Heads....HP
[Re: Brian Hafliger]
#3172311
09/02/23 01:05 PM
09/02/23 01:05 PM
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Joined: Jan 2003
Posts: 14,514 So. Burlington, Vt.
fast68plymouth
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So. Burlington, Vt.
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I haven’t heard that, but I’ve only ever sold I think 3 sets of EZ325’s..........and one of those sets had some issues.
Todd Marsh might have that info.
I think a dyno comparo between some EZ295’s vs the TF270’s would be interesting. But I also think a test between ootb EZ295’s vs “prepped” EZ295’s would be interesting.
Just not interesting enough to put in the effort to actually do the test.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: TF270 Heads....HP
[Re: Blusmbl]
#3172566
09/03/23 12:25 PM
09/03/23 12:25 PM
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Joined: Jan 2003
Posts: 31,074 Oregon
AndyF
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I Win
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Posts: 31,074
Oregon
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The Indy heads seem to wake up some with porting, and I've seen a few people change the 295/325 intake valve to 2.25 to pick up some additional flow. Would the Trick Flow 270's benefit any from porting or are they pretty much tapped out since they started as the 240 casting?
For a wedge with stock exhaust port location it doesn't sound like there are any better options than the max wedge sized EZ's, or the TF270. I wouldn't bother spending any money trying to port a set of 270 heads. If you want to spend money to make more power spend it on the intake. There are no really nice OOTB 700 to 800 hp intake manifolds for MW ports. The Super Victor is pretty good but not great, the Indy stuff is okay but needs work to be great. I've heard the new TF intake is good but I haven't seen one yet. They made a few and then ran out.
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Re: TF270 Heads....HP
[Re: AndyF]
#3172591
09/03/23 02:40 PM
09/03/23 02:40 PM
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Joined: Jan 2003
Posts: 8,182 Plymouth, MI
Blusmbl
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master
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Posts: 8,182
Plymouth, MI
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That's great info, thanks Dwayne and Andy. It sounds like the hot ticket would be to send either the new TF MW intake or the Indy 440-3X to Wilson to get cleaned up.
Looking on Indy's site, they don't have pricing for the 325's listed anymore. They do list the EZ, EZ-1, and EZ-295 though, along with the SR, -1, 572, 600 and predator heads.
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
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Re: TF270 Heads....HP
[Re: Blusmbl]
#3172598
09/03/23 02:58 PM
09/03/23 02:58 PM
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Joined: Jan 2003
Posts: 31,074 Oregon
AndyF
I Win
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I Win
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Posts: 31,074
Oregon
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Best Machine built a 572 last year for a customer of mine. It had EZ325 heads and it made 860 hp on the dyno. It was an EFI, dry sump, Jesel belt drive, T&D rocker arm type engine so not your average bracket racer stuff. Nice motor, probably would've made over 900 hp with 572-13 heads but the customer was constrained to stock port locations. Engine also had an Indy aluminum block and the intake was ported by Wilson. Big buck engine, probably had close to $40,000 in it by the time they were done.
Last edited by AndyF; 09/03/23 03:01 PM.
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Re: TF270 Heads....HP
[Re: AndyF]
#3172653
09/03/23 07:55 PM
09/03/23 07:55 PM
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Joined: Jan 2003
Posts: 8,182 Plymouth, MI
Blusmbl
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Plymouth, MI
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That's a really interesting build, I can't say I've seen any max effort 572's with standard exhaust port heads. If that was dialed back a bit with a conventional wet sump and TF270's (assume the TF's are giving up 40 cfm over prepped 325's?), what would you expect that motor to make? 750-ish with a lower HP peak because the ports really aren't big enough for a 572?
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
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Re: TF270 Heads....HP
[Re: AndyF]
#3172714
09/04/23 12:40 AM
09/04/23 12:40 AM
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Joined: Jan 2003
Posts: 4,758 Moved to N.E. Tennessee
GomangoCuda
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master
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Moved to N.E. Tennessee
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What would be a good cam for a 500 ish TF270 700+hp engine? Same question for a 572 Indy head 800+ hp?
In theory, there is no difference between theory and practice. In practice, there is.
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Re: TF270 Heads....HP
[Re: Dragula]
#3172754
09/04/23 09:59 AM
09/04/23 09:59 AM
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Joined: Jan 2012
Posts: 1,543 USA
hudsonhornet7x
pro stock
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pro stock
Joined: Jan 2012
Posts: 1,543
USA
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With a typical stroker build, a real cam, what kind of HP are you guys getting out of these? Just trying to see what runs better, the Indy of the TF's..... What do you consider a " real cam"?
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Re: TF270 Heads....HP
[Re: GomangoCuda]
#3172756
09/04/23 10:06 AM
09/04/23 10:06 AM
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Joined: Jan 2003
Posts: 14,514 So. Burlington, Vt.
fast68plymouth
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I Live Here
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So. Burlington, Vt.
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What would be a good cam for a 500 ish TF270 700+hp engine? Same question for a 572 Indy head 800+ hp? Cams would be different for different applications. I wouldn’t use the same cam for an 1800lb dragster and a 4000lb street strip wagon.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: TF270 Heads....HP
[Re: fast68plymouth]
#3172760
09/04/23 10:14 AM
09/04/23 10:14 AM
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Joined: Jan 2003
Posts: 4,758 Moved to N.E. Tennessee
GomangoCuda
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Posts: 4,758
Moved to N.E. Tennessee
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Good point. Let's say your typical 3000 - 3600 lb street/strip, NSS or bracket car with appropriate converter, gear and tire, Not a tube car or a tuna boat.
Last edited by GomangoCuda; 09/04/23 10:43 AM.
In theory, there is no difference between theory and practice. In practice, there is.
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Re: TF270 Heads....HP
[Re: GomangoCuda]
#3172768
09/04/23 10:45 AM
09/04/23 10:45 AM
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Joined: Jan 2003
Posts: 31,074 Oregon
AndyF
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I Win
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Posts: 31,074
Oregon
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What would be a good cam for a 500 ish TF270 700+hp engine? Same question for a 572 Indy head 800+ hp? TF heads are very sensitive to cam timing since they flow so well at lower lifts. It is easy to over cam them, I've done it a few times even though I should know better. For my pump gas 470 a 271 was too big but a 264/268 was just about perfect. I don't remember the cam in the 572, probably something in the 280/290 range. I did have a customer try the 264/268 in a street car. It was a 505 with TF270 heads that made 700 hp on the dyno, but the idle was so rough that it took several hours of tuning before he could even drive the car. Fortunately it was an EFI car so we were able to tune it. Not so sure a carb and distributor could have been modified enough to work.
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Re: TF270 Heads....HP
[Re: GomangoCuda]
#3172781
09/04/23 11:15 AM
09/04/23 11:15 AM
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Joined: Jan 2003
Posts: 14,514 So. Burlington, Vt.
fast68plymouth
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I Live Here
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So. Burlington, Vt.
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Good point. Let's say your typical 3000 - 3600 lb street/strip, NSS or bracket car with appropriate converter, gear and tire, Not a tube car or a tuna boat. Basically, for a “race car”, meaning 5000+ converter and gears to match, the 700hp 500 would be in the 270’s and .700 or so lift(something that could use the TF springs). The 800+hp big cube Indy head combo would be in the 280’s and .800-ish lift. That will actually get you over 900 with a nice high CR bottom end and good heads. Ootb TF270 on pump gas 713 hp/709 torque. Street car motor. That cam is under 270@.050 and under .700 lift.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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