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Trick Flow 270 combos! #2778665
05/27/20 11:17 AM
05/27/20 11:17 AM
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junction city oregon
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viperblue72 Offline OP
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Trying to get an idea what people are making for power with these heads.
I have a 511 low deck that’s gonna get a set. Can’t seem to find much google searching.
I’m aware of Andy F. articles but would like to hear more experiences.

Re: Trick Flow 270 combos! [Re: viperblue72] #2778706
05/27/20 12:16 PM
05/27/20 12:16 PM
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birdtracker Offline
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I just got mine together and am working out a few issues. I am trying to use E-85 . Birdtracker

Re: Trick Flow 270 combos! [Re: viperblue72] #2778730
05/27/20 01:13 PM
05/27/20 01:13 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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It’s not really that much different of a head than a ported EZ head.......like an EZ295.

Power should be very similar if the heads got swapped on the dyno.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Trick Flow 270 combos! [Re: fast68plymouth] #2778775
05/27/20 03:46 PM
05/27/20 03:46 PM
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viperblue72 Offline OP
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Duane,
I’m mostly curious about different combos and different power combos. I’m
tempted to just make it 11 to 1 and use a moderate low maintenance cam with
a 3:55 gear and 3500 stall if I can still make 650+ horsepower and same torque.
Trick flow claims 685hp with a very mild build that I’m skeptical the average person
would see the same numbers. It’s a flat top piston so I can also get it up to around 12 to 1 or so and use a solid roller.
It’s for my Dad and he’s making me make these decisions lol.
The short block currently has a 274@050 solid .590 on 108 and I have a converter that will flash to 4700.
The short block was in my race car but had small sidewinder heads fully ported.
I never really got that combo sorted.

Re: Trick Flow 270 combos! [Re: viperblue72] #2778790
05/27/20 04:28 PM
05/27/20 04:28 PM
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So. Burlington, Vt.
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Well, the top end is already sorted out.......
500”, decent cam, enough CR, ......... 700 wouldn’t be that hard.

The “intended use” dictates several of the decisions...... including the cam.

The intake, cam, carb, headers can easily move the number from under 600...... to over 700....... from the same basic long block.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Trick Flow 270 combos! [Re: fast68plymouth] #2778802
05/27/20 04:46 PM
05/27/20 04:46 PM
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Morrow, OH
markz528 Offline
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Originally Posted by fast68plymouth
Well, the top end is already sorted out.......
500”, decent cam, enough CR, ......... 700 wouldn’t be that hard.

The “intended use” dictates several of the decisions...... including the cam.

The intake, cam, carb, headers can easily move the number from under 600...... to over 700....... from the same basic long block.


That's correct. My 11:1 CR with a Dwayne Porter cam made 713 hp and 709 torque for my street/strip motor. Max HP rpm was around 6000 rpm. 505 CI.

Last edited by markz528; 05/27/20 04:47 PM.

67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Trick Flow 270 combos! [Re: markz528] #2778805
05/27/20 05:12 PM
05/27/20 05:12 PM
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viperblue72 Offline OP
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Originally Posted by markz528
Originally Posted by fast68plymouth
Well, the top end is already sorted out.......
500”, decent cam, enough CR, ......... 700 wouldn’t be that hard.

The “intended use” dictates several of the decisions...... including the cam.

The intake, cam, carb, headers can easily move the number from under 600...... to over 700....... from the same basic long block.


That's correct. My 11:1 CR with a Dwayne Porter cam made 713 hp and 709 torque for my street/strip motor. Max HP rpm was around 6000 rpm. 505 CI.


Those are great numbers 👍. How much camshaft? I’d like to stay at .650 lift or less and a lobe that doesn’t eat springs.
I also have the trick flow intake for it. May take some creativity to port match.
Can I make similar numbers with a hydraulic roller? Or will it require a solid roller?
I want something that can go 40 mile trips and maybe go 4-5k miles before swapping springs
And rebuilding lifters.

Last edited by viperblue72; 05/27/20 05:34 PM.
Re: Trick Flow 270 combos! [Re: viperblue72] #2778817
05/27/20 05:40 PM
05/27/20 05:40 PM
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birdtracker Offline
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mine is 12.5-1 540 ci with 270s, Comp 665 roller with a single 1250 E-85 dominator in a 2600 pound street car. Drove it down the road I live on once so far. Figuring out a few minor issues. Valve covers were not flat, had to get them milled and had the wrong coil on it. Hopefully this weekend will be good enough to get it close enough to go make a few passes at the track. Been saying a prayer every night!!! Birdtracker

engine 2019.jpgengine 1.jpg
Re: Trick Flow 270 combos! [Re: viperblue72] #2778820
05/27/20 05:44 PM
05/27/20 05:44 PM
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Sydney,Australia
tex013 Offline
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been running mine for a couple years , is an RB though . Both a 440 and a 505 .

I run solid flat tappet cams , no rollers so I am sure I am leaving some hp on the table . But mine is my daily as well as bracket racing . Raced on 98 pump gas and through the exhaust .
The 440 went 10.71@126+ @ 3690lbs . 520 nett lift solid ft .10.75:1 . 30"tall radial 6000 stall
Factory block 505 10.25@129+ @ 3690lbs .600 nett lift solid ft .11.0:1 . 28"tall radial . 5000 stall
World block 505 10.27@130.8 @ 3780lbs .600 nett lift solid ft .11.0:1 . 30"tall radial . 6000 stall
The cams a not aggressive ramps because of use .

Tex


New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: Trick Flow 270 combos! [Re: viperblue72] #2778830
05/27/20 06:06 PM
05/27/20 06:06 PM
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Morrow, OH
markz528 Offline
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Originally Posted by viperblue72
Originally Posted by markz528
Originally Posted by fast68plymouth
Well, the top end is already sorted out.......
500”, decent cam, enough CR, ......... 700 wouldn’t be that hard.

The “intended use” dictates several of the decisions...... including the cam.

The intake, cam, carb, headers can easily move the number from under 600...... to over 700....... from the same basic long block.


That's correct. My 11:1 CR with a Dwayne Porter cam made 713 hp and 709 torque for my street/strip motor. Max HP rpm was around 6000 rpm. 505 CI.


Those are great numbers 👍. How much camshaft? I’d like to stay at .650 lift or less and a lobe that doesn’t eat springs.
I also have the trick flow intake for it. May take some creativity to port match.
Can I make similar numbers with a hydraulic roller? Or will it require a solid roller?
I want something that can go 40 mile trips and maybe go 4-5k miles before swapping springs
And rebuilding lifters.


Mine is under .650 lift. Talk to Dwayne. I run the Mopar 337 intake.

My experience with hydraulic roller = DON"T!


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Trick Flow 270 combos! [Re: markz528] #2778836
05/27/20 06:21 PM
05/27/20 06:21 PM
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junction city oregon
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viperblue72 Offline OP
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Originally Posted by markz528
Originally Posted by viperblue72
Originally Posted by markz528
Originally Posted by fast68plymouth
Well, the top end is already sorted out.......
500”, decent cam, enough CR, ......... 700 wouldn’t be that hard.

The “intended use” dictates several of the decisions...... including the cam.

The intake, cam, carb, headers can easily move the number from under 600...... to over 700....... from the same basic long block.


That's correct. My 11:1 CR with a Dwayne Porter cam made 713 hp and 709 torque for my street/strip motor. Max HP rpm was around 6000 rpm. 505 CI.


Those are great numbers 👍. How much camshaft? I’d like to stay at .650 lift or less and a lobe that doesn’t eat springs.
I also have the trick flow intake for it. May take some creativity to port match.
Can I make similar numbers with a hydraulic roller? Or will it require a solid roller?
I want something that can go 40 mile trips and maybe go 4-5k miles before swapping springs
And rebuilding lifters.


Mine is under .650 lift. Talk to Dwayne. I run the Mopar 337 intake.

My experience with hydraulic roller = DON"T!



My plan is to get a cam from Duane when that time comes. I’d prefer a solid roller for this build.
Just not sure how aggressive I want to go yet. This will be a street/strip car. I’d like to stay between 260-270@050
and .650 lift. If I can make 700@6k rpm that would be amazing.
337 won’t work for me as it’s a low deck, but an Indy intake won’t be out of the question.

Last edited by viperblue72; 05/27/20 06:22 PM.
Re: Trick Flow 270 combos! [Re: viperblue72] #2778843
05/27/20 06:39 PM
05/27/20 06:39 PM
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Morrow, OH
markz528 Offline
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My duration is under 270. Mid 260's.


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Trick Flow 270 combos! [Re: markz528] #2778846
05/27/20 06:49 PM
05/27/20 06:49 PM
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viperblue72 Offline OP
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Originally Posted by markz528
My duration is under 270. Mid 260's.


Thank you 🙏. I’ll contact Duane and tell him I want similar specs.
Do you remember what your torque peaked at? And do you have times yet?

Re: Trick Flow 270 combos! [Re: viperblue72] #2778852
05/27/20 07:02 PM
05/27/20 07:02 PM
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Originally Posted by viperblue72
Originally Posted by markz528
My duration is under 270. Mid 260's.


Thank you 🙏. I’ll contact Duane and tell him I want similar specs.
Do you remember what your torque peaked at? And do you have times yet?


I don't really know what rpm the torque peaked at but it was low. Peak torque was under where we were starting the dyno pulls. We started one pull lower to see peak torque but can't find that sheet right now.

I have not yet finished the car. I need to get moving on it...........


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
Re: Trick Flow 270 combos! [Re: markz528] #2779307
05/28/20 11:32 PM
05/28/20 11:32 PM
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512 low deck, 10.25 comp, mild solid roller 254 duration, 630 lift. dyno'd on 91 pump gas. 700 HP and 670 ft lbs.


1968 Dart
Re: Trick Flow 270 combos! [Re: StrokedDart] #2779313
05/28/20 11:55 PM
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Yeah that is about what I'd expect. We did a 505 with a solid roller and 270 heads last year that made a little over 700 hp on the dyno. It is in a Belvedere now and is running high 9's. Another 505 with 270 heads also made right at 700 hp with a street roller cam. It is going into a RoadRunner but the car isn't finished yet. I would expect 700 hp from a 505 with 270 heads if it set up for bracket or even street/strip with a decent solid roller cam.

Re: Trick Flow 270 combos! [Re: AndyF] #2779323
05/29/20 12:56 AM
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viperblue72 Offline OP
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Thank you Andy! Does it seem these combos have diminishing returns the bigger the camshaft you go?
If you 252@050 cam will get me close to 700 and a 265@050 only gains me 15 more I’d rather just get the best bang for the buck and not try to squeeze every last pony out of it.
Where’s the point of little return or am I off base?
Also do you feel a hydraulic roller could get close to the 700 mark?
I know trick flow claims 685 with these heads and a mild build but I’m not sure as an average builder without the use of exotic parts I’d reach that with the same combo.

Last edited by viperblue72; 05/29/20 12:58 AM.
Re: Trick Flow 270 combos! [Re: viperblue72] #2779385
05/29/20 10:15 AM
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I agree with you on the 500+ stroker large duration cams. I'm in the same position with my street/strip 12.5:1 511. Currently using a 270@50/.645" and thinking smaller with more lift might be the ticket. Seems the 470's handle a lot more duration than the 505, 511's do. Also in a medium to heavy street car, something on a 108LDA would work real nice instead of the common 110,112LDA, without power brakes. Being that 500+ strokers make power down low and big duration cams make better power up high in the power band, it does seem a big cam in a 500 stroker in a street/strip car would be a bad combo. Maybe someone here can prove this wrong. I would like to see those combos.

Last edited by mopar dave; 05/29/20 10:21 AM.
Re: Trick Flow 270 combos! [Re: mopar dave] #2779428
05/29/20 12:06 PM
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It seems to me from my research these are basically a 700hp cylinder head on pump gas and more hp requires gas ported pistons, vacuum pumps, fully ported intake, etc.
Maybe I’m wrong but that’s where my research is leading me.

Re: Trick Flow 270 combos! [Re: viperblue72] #2779437
05/29/20 12:25 PM
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How about the 470 using TF heads other than Andy's is anyone making close to or above 700


71 demon stock stroke 440/indy ez-1 running 10.10 @ 132.14 mph in the 1/4 and 6.36 @ 107.46 mph in the 1/8 not in the same weekend but It did it then I sold it.
67 Belvedere that worked it's way in the 10's
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