Jimbo1367

Still wish they'd update their website with data.

RENE'S RAGE

iTrader: (96)

TSP, put a set of these heads on your 418 shorthblock and let's see some #'s.
That would answer alot of peoples questions.

chriswtx

iTrader: (5)

Yes we need to see a real test...Lets see a comparison of your CNC LS3 heads vs these new heads on a 416/418 motor...

418ls3

iTrader: (1)

ive got a 418 ls3 built by texas speed id be willing to loan you guys as a test vehicle. ill even bring the car to you. number is 816-810-5119. im curious to see what kind of numbers these will put out.

Jimbo1367

I wish I had my swap complete and the spare money, I'd try them. Then compare them to stock LS3s then PRCs 237 heads. I am leaning towards TFS 235s or PRC 237s when I am ready for a new TSP motor

Jason 98 TA

iTrader: (4)

4 sets of the LS7 heads shipped last week! We're finally shipping guys!

Jenson

iTrader: (32)

I'd love to see some results on these. And all the other info on them

offaxis

iTrader: (19)

Still worth buying since the intake runner is smaller than the ported ls3 and has a much better flowing intake manifold. I would think there would still be some really nice gains to be had over the ls3 product.

DietCoke

iTrader: (18)

The thread title claims 390cfm. 2+2 just seems to be equalling 5, trying to figure out which is correct information.

offaxis

iTrader: (19)

You are right and This has been going so long I honestly look right past the title. At this point just for someone on this board to get a set would be big. I was ready to buy these but have since moved on to something else.

Jason 98 TA

iTrader: (4)

DietCoke.

Read the title of the thread, this is a LS7 head thread. What your talking about is our aftermarket LS3 head.

Basically we have 2 heads you can run a on a LS3. Choice 1 is the LS3 aftermarket castings with 250cc runners designed for all stock LS3 parts. The next option is the small bore LS7 heads which move 390cfm, but require alot of LS7 components like rockers & intake.

Two different heads that's where the confusion is!

Jason 98 TA

iTrader: (4)

Ls7 heads have been shipping for a while guys.

The all new LS3 casting for the LS3 intake/rocker combo with 250cc runners is what we're currently working on.

LS7 heads can be purchased anytime.

DietCoke

iTrader: (18)

That makes more sense.

Snyper

iTrader: (27)

Almost a year and no 418/429 info. Im literally waiting on info with cash in hand(or in form of plastic card) to buy these damn things!!

chriswtx

iTrader: (5)

Seriously..we need to see a real test...Lets see a comparison of your CNC LS3 heads vs these new small bore LS7 heads on a 416/418/427 LS3 motor..Where's the results??? Make a new head and not test for what they were designed for????

DietCoke

iTrader: (18)

I'll offer up my 429 shortblock you guys are building as a dyno mule if you guys want to throw the different heads on it and run it on the dyno

02blackbeauty19

iTrader: (22)

How will these LS3 heads fit on a 4.005" LS2 based bore size?

Jimbo1367

Any chance to have your website updated showing these small bore LS7 heads? (with options & flow data too)

Thanks,
JIm

racerfox

iTrader: (4)

i 2nd that i want some numbers posted before this bs thread gets any longer

lets see a dyno fresh buld 418 11-1 comp ls3 heads and the new ls7s

please and thank you

Jimbo1367

Reread the thread. It is stated over and over. LS3. not LS2 ~.065" IIRC