New aftermarket LS3 heads.

[Ovenmitt]

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Trick Flow LS3/L92
Price: $2500-2700 (est)
Available: Beginning of March, 2011

*255 cc
*2.100 intake valve, 1.600 exhaust
*69cc chambers
*4.00" minimum bore
*12 degree Valve angle
*Must run LS7 Rockers
*Can run ls3 or ls7 style intake, specify when ordering head

Advertised out of the box cnc Flow Numbers

Lift Intake Exhaust
.100 72 62
.200 159 117
.300 234 179
.400 292 224
.500 333 240
.600 357 252

http://www.ls1tech.com/forums/genera...rick-flow.html

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PRC / Texas Speed CNC LS3
Price: $2399 (est)
Available: Early 2011

*All new PRC Castings and CNC Port Design
*LS3 Square intake Port
*Thick Deck
*Will bolt up to any current blower system

http://www.ls1tech.com/forums/genera...-ls3-bore.html
http://www.camaro5.com/forums/showthread.php?t=83194

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Mast Motorsports Black Label LS3
Price: $2599 bare,
$2999 assembled with .650 lift beehive springs, stainless valves, and billet aluminum rocker stands.
Available: Now

*256cc
*2.165 intake valve, 1.600 exhaust
*69cc chamber
*11 degree valve angle
*Regular or 6 bolt LSX Bolt pattern
*4.000-4.070 bore
*Uses LS3 offset rockers/valvetrain


Advertised Flow Data w/4.000" Bore Plate

Lift Intake Exhaust
.100 74 61
.200 146 119
.300 222 188
.400 282 219
.500 330 236
.600 360 251
.700 372 260

http://www.ls1tech.com/forums/genera...der-heads.html
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Would like to see some real world numbers/comparisons with ported LS3 heads on stock cube motors sometime in the future. The future is looking bright for the LS3

[VADER SS L99]

We need these heads badly for FI users because of the deck problem under boost lifting the heads with the stock casting. The only question I have is with the intake mounting. Will any PD supercharger bolt up to these heads? If not then I think we may have an issue.

[Ovenmitt]

The TFS heads require a special lower intake plate for the roots blowers to fit. I imagine the afr head is similar. Aftermarket or not the heads will lift regardless unless you change to a 6 bolt casting (aftermarket block)

[VADER SS L99]

Originally Posted by Ovenmitt

The TFS heads require a special lower intake plate for the roots blowers to fit. I imagine the afr head is similar. Aftermarket or not the heads will lift regardless unless you change to a 6 bolt casting (aftermarket block)

I wonder what impact the special plate will have on Whipple, KB, and Edelbrock owners. I think we need more info on this subject.

You are totally correct on the lifting but you can have more insurance with a thick decked aftermarket casting like AFR or TFS vs the factory casting. Besides I can almost garrantee that it will be offered in a 6 bolt design. Every other TFS head above 235cc is offered in a 6 bolt design. The LS3 factory head probably has the worst reputation for lifting vs the other LS factory heads because of its deck thickness.

[Jason 98 TA]

We are working on our PRC LS3/L99 style aftermarket castings as well. They will bolt up to all the blowers & will have thicker decks for boost applications!!

[danhr]

hmmmmm..... the estimated release date on the trick flows is january 1st, 2011.....\

which means they will be released in 2014...

[Ovenmitt]

Originally Posted by danhr

hmmmmm..... the estimated release date on the trick flows is january 1st, 2011.....\

which means they will be released in 2014...

Competition is good for business

[Busy_Boi]

Originally Posted by Jason 98 TA

We are working on our PRC LS3/L99 style aftermarket castings as well. They will bolt up to all the blowers & will have thicker decks for boost applications!!

How long will before the release of your heads Jason I will be ordering your vvt cam and would like to have the heads to go with it.

[danhr]

quick note:

the Trick flow heads will have an 11* valve angle, opposed to the factory 15* valve angle.

This will help airflow and will help out with piston to valve clearance, as will the smaller intake valve

[Ovenmitt]

I'll try to keep this post updated with relevant info as it becomes available.

[danhr]

TFS HEADS

correction: 12* valve angle

estimated price: 2500-2700 (THIS IS AN ESTIMATED PRICE, BUT THAT'S THEIR GOaL)

Release date: Not Jan. 1, it is the first quarter of 2011

Current status: They are still dyno testing the heads

The said flow numbers are obviously cnc'ed numbers, they are not as-cast

They will be offer different runner sizes down the road

You will have a choice of either wanting to run the ls3 or ls7 intake when ordering (there are two different sets of heads)

Intake valves are NOT hollow stem

[AG454]

So danhr, are these Trick flow heads worth waiting for? You seem to have a lot of knowledge on heads/cams. I am trying to decide if porting the stock LS3 heads is worth the money, or should I go with aftermarket heads. What do you think of the Mast black label heads? I have the G6X3 cam and full exhaust/tune/4.10's.

[danhr]

Originally Posted by AG383

So danhr, are these Trick flow heads worth waiting for? You seem to have a lot of knowledge on heads/cams. I am trying to decide if porting the stock LS3 heads is worth the money, or should I go with aftermarket heads. What do you think of the Mast black label heads? I have the G6X3 cam and full exhaust/tune/4.10's.

Kind of a trick question. They are for the "more hardcore" so to speak......

The trick flow heads, flow really well, but they dont flow much more than a $1200 set of ported stock heads, at least not enough to justify the ~1300 price difference imho.

If you are buying these (Trick Flow) heads, you are buying more than just flow numbers, you are buying the "extras" like the thicker deck, valve angle, smaller intake valve (yet retaining the same intake flow numbers), etc. etc. etc.

IMHO, in your particular case, you might benefit from waiting for these heads, as you have the G6x3 cam. These heads will allow you to mill more to bump your compression up, without running into piston to valve clearance issues and having to flycut your pistons, with their already smaller than stock combustion chamber and 12* valve angle, and smaller intake valve. How much will you be able to mill? Unsure at this point.

[AG454]

Thanks for the info, what are you planning for your car?