SE stage 2 or TE stage 2

When selecting a stage 2 head. which of these is better suited for a street car that will see some track time.
I know absolutely nothing about these and am trying to learn before I make the leap.
Is it better to purchase them assembled or bare
short block is a 455 bored to 462. stock crank and rods. Ross pistons 9.5-1 compression (balanced)
I have iron heads now with stage 1 valves and springs and TA 1.6 roller rockers.
Can I use anything from these heads other then the rockers ?
will my HP850 4150 holley be enough? ect. Headers I know need to change.
any insight to the upgrade is appreciated.

OR...should I just start a new motor from scratch and run this till it's done. lol
I am my own worst enemy.

 

You can make excellent power with the SE head, but the TE head has more potential, has a CNC porting program available and out of the box will make more power, it will require either a SP2 intake or adapters to run any other intake, both of which will raise intake height which as you know on 64/67's is usually an issue. Go with the 11/32 stem, many more valvtrain options than 3/8. Your rockers would interchange but I would leave the iron heads alone and get assembled heads with the bowl porting. Building a second engine is always a good move as you can sell the first engine or have it for a backup. With a new engine you can run more compression, more cam, cid etc to better utilize the heads. But as to the original question, if I had a 64/67 chassis ID probably put the SE heads in it, to avoid all the intake drama

 

I would pick the SE heads !
Just there increased port volume will pick up the power band, no less the added 55 cfm of added Intake flow, they are a far better pick for a motor that see's 80% more street useage than drag strip!
its always better to be on the small side of Cam and head picks then too large!!!

 

ok, this exactly the information I would never have known. I have done enough spending on my own instinct and
chose poorly. Ie. the Iron heads. A lot of money into those and I should have just went aluminum in the first place.
another reason is the M/T ss headers. they had to be persuaded in and have 1/8" clearance at the drive shaft and frame.
the stage 2 heads and headers clear everything and mike @ TA mentioned he used stock pads.
the cam is a TA performance cam. how is this with the SE stage 2,
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455H.525"-231'/.525"-234',110'
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with the 1.6 roller rockers

 

My SE heads are CNC ported and have no issue fitting under the hood of my 67 GS. It made plenty of power for a street/strip car.

 

How was the header fitment Peter ?did you use the TA headers ?

 

TA's Stage 2 headers fit great in my 65 without any "modifications"!!!

Good luck with your build!!

Jim

 

I would guess that the TE heads would raise the RPM for peak power with the taller ports compared to the SE heads. . I would also think peak Torque will be raised in the RPM band also . Neither are helpful to a street car .

 

I did use the TA headers Joe. They fit with no modifications to anything. I used the stock mounts that I had rebuilt. I'm also using the SP1 intake.

 

I'd like to learn more about your build Peter. "The old saying, I wish I knew then, what I know now". I could have save a ton of money. and not by switching to GEICO. I recently talked to another member about the M/T ss headers on a 1967. I hope I saved him from the same fate. Was there additional machine work does to the SE heads or did you buy assembled and bolt them on ?
Ie. port match, ect.. do you have ac ? Sorry, i could go on and on with questions. last one, what size exhaust are you running. I am partial to a 3" exhaust.

 

Although I run TEs on the street, for your combo, I would run the SEs. Still a fantastic cylinder head which can make big power if you wanted to go for it.
Cheers

 

Seeing how you're asking in the race section I have to vote for you to go with the TE heads.

That being said you should probably start from a ground up build, get that compression up to 10.5 to 11.5:1 with either set of heads depending on what roller cam you choose to run pump gas.

Get the full girdle treatment for the block and do one of the strokers(either the 470 or the 482 version) that can be done that includes the right size aftermarket rods. Try to get the rotating mass as light as you can so with either set of heads you choose you can rev the thing more than 5,500 RPM!! 6,500 to 7,000 peak would be great!

Don't listen to the guys that are worried about "low end" its a BBB for crying out loud(unless all you're worried about is roasting rubber), its going to have low end no matter what with those heads unless you get a cam that doesn't start making power until 5,000 RPM!(you wouldn't want a cam like that unless you had a Tomahawk block anyway)

If you're not planning to use any power adders then the AutoTec 4032 forged pistons is a nice option that would work good for you even with around 5 psi or a 150 shot. Anything more than that go with a 2618 forged piston for more extreme cylinder pressures.

If you just want a bit more out of your build without going to the extremes to build another engine I vote for a set of Edelbrock heads assembled by JW for the engine you have now. Installing the mentioned heads on a 9.5:1 engine probably isn't the best use of those heads. Although if it is header clearance is why you are looking at them in the first place and not so much for what kind of power potential they have then why not 9.5:1? GL



Derek

 

Hit it right on the Nailhead Larry, exactly why I am upgrading. the stage 2 will give me the performance and clearance needed. It's no race car but it will be fast. when I built the engine I was looking for 500+hp and came home with 426. I believe a lot was left on the table using the iron heads. hindsight being 20/20 I would have went stage2 in the very beginning. I have already opted out of the TE's as the SE's are certainly more in my direction. hood clearance being a major issue as well with the 67's. I may not even get a 1/2" spacer under the carb let alone another 2 inches. even the SP1 will be cutting it close. I will never get the starwars air cleaner in there so that will become a show piece. I made the post here in the race section only because the initial question is above the standard 455 question. If this post is in the wrong place, please let me know and I will humbly move it. Thanks everyone for your input. I have learned a lot in a very short time.

 

That's what I was looking for Larry, mid 11's and streetable. . There's this girl, (Always starts like that right) who runs a nice 55 shoebox in the sportsman class. She has been asking me for almost three years now...get your car done ? can't wait to get you out to the track. I'm not a win at all cost guy but i don't wanna get spanked either. so the 600hp is more than I could ask for and Would be very content to let it be and enjoy it. post has been relocated to Street/Strip 455 Forum :TU:

 

Man, you didn't need to move your thread because of me. When I voted for the TE heads I forgot to put this guy in afterwards, :Brow: . Its cold here in MI and I felt like writing, LOL.

The point I was driving at because you, IIRC you already have headers with your current build you can get the Edelbrock ported heads for less $$ and make good power with those. Dealers choice though.

If you already have the TA roller rockers then by all means get the Stage 2 SE heads, if not the Eddys are worth looking at for a street car. Those can be bought at various places with various porting done to them. GL





Derek

 

I already have the roller rockers and eddy's wouldn't give me the clearances that SE2's would.

I am a ways out on this but gathering information for when the time comes. :dollar:
The plan is to have a plan

 

Heads were CNC ported by Finishline. They were bought assembled but ended up having them ported and changed the valve/spring combo. Intake was ported as well.

No AC on this car. Exhaust is the 3" mandrel bent kit from TA. Fits great. I haven't driven it enough to decide if I want to add the tailpipe extensions though. Supposed to quiet it down a bit in the car but I sort of like them exiting before the rear bumper. Sounds sweet with the Dynomax turbo mufflers.

Bring on the questions... I'm more than willing to share what worked for me.