Brian Tooley Racing

iTrader: (13)

So many people are accustomed to waiting weeks or months for their heads, so I thought I would make a post to let everyone know we have these in stock and ready to ship.

These ALL NEW heads feature rolled over valve angles for increased piston to valve clearance, relocated spark plug position for better mid lift flow and a stronger spark plug boss area and stock length LS valves. The valve cover rail is raised so slightly that it doesn't interfere with anything else, so there is no need to relocate your alternator.

The LS1 head has 2.04/1.57 valve diameters and the LS2 has 2.055/1.57 valve diameters. We sell these heads bare, complete, and even with custom setups for solid roller. The heads have valve guides that have an I.D. of .310", so they will work with 5/16 solid roller valves without having to change the guides. I have attached some pictures taken by a customer John Norris that shows the detail of the chamber, the reinforced rocker stud boss, you can also see how the spark plug was slightly relocated which helps produce better mid lift flow. John went 10's on motor with his heads.

Dealer inquiries are welcome.

1999 SS

iTrader: (3)

can you pm me a price for the ls2's complete minus the valve springs?
have these heads been flowed? what are the numbers?

Brian Tooley Racing

iTrader: (13)

I have averaged a few heads together and came up with the following flow numbers on a 4.030" bore at 28", exhaust was flowed with a pipe. We flow every set before they leave.

Intake
.100" 67.5
.200" 143
.300" 224.5
.400" 280
.500" 318
.550" 331.5
.600" 341

Exhaust
.100" 54.8
.200" 118
.300" 187
.400" 231
.500" 252.2
.550" 258.2
.600" 262.6

ty_ty13

iTrader: (42)

wow! thats impressive coming off your bench... whats the price of these?

Brian Tooley Racing

iTrader: (13)

They are $2395, I believe they are the most powerful head made for a LS2 and are very easy to bolt on also.

algws6

iTrader: (3)

brian, how do these stack up against the ls6 heads you guys just did for me?

Brian Tooley Racing

iTrader: (13)

You have 3.90" bore LS6 heads, these are designed for a 4.00" bore, so kinda apples to oranges. The TFS LS1 heads are probably 10-15 HP better then the LS6 heads we do, which is saying a lot considering our LS6 heads have made 450 RWHP with a LS6 intake.

ty_ty13

iTrader: (42)

when you say LS2 i assume you also mean the ls1 and ls6 also?
i have a 408 so its not a small bore...

ty_ty13

iTrader: (42)

also... do you have any flow numbers up to .700 on the exhaust and intake by chance on the 4.030 bore?

also how big is the runner on these? how big are the combustion chambers that you flowed

what are some of the thicknesses of this head?

are the valves placed in a different location than stock or are they just angled different... i ask this cause i already have my pistons fly cut for some stock 241 heads and wondering if i'd have to have them re-fly cut for these if i chose them this winter...

sorry for soo many questions just curious about a new player in the head market.

1999 SS

iTrader: (3)

i made a mistake i ment to ask about ls1 heads not the ls2. do you have info on these(ls1)?

Brian Tooley Racing

iTrader: (13)

No, we have a 3.90 bore LS1 head that has a 2.04 intake valve and a 215 cc intake port, they have killer mid lift flow and make killer power.

We came out with a "LS2" head for a 6.0 liter, 4.00" bore LS2, it has a 2.05 intake valve and a 225 cc intake port, those are the flow numbers referenced above.

We port stock LS6/LS2 heads as well, we port the chamber according to the bore of the engine, i.e. 3.90 for a 5.7 and 4.00 for a 6.0/LS2/400+ etc.

Brian Tooley Racing

iTrader: (13)

All the info is at this link below, the flow numbers we get are more then what is advertised on the TFS web site, other then that the heads are the same.
http://www.trickflow.com/product/che...ls1/pr_ls1.asp

ty_ty13

iTrader: (42)

sorry to fill your thread with this question but i figured you'd like it since it gets you a bump...

LS2 heads mate up with any ls1 intake dont they? im pretty sure they do i just wanted to check and make sure before i get too interrested....

the price is good to boot its right on par with ETP and AFR except the TFS heads seem to flow better

good job again TEA.

Brian Tooley Racing

iTrader: (13)

Yes, the intakes interchange between the two. I just realized I failed to answer some of your questions. The TFS heads have a 13.5 degree valve angle, rolled 1.5 degrees from stock. These heads actually have MORE piston to valve clearance then a stock head!! So if your pistons have already been notched then you should be good to go. The spark plug is also relocated which helps improve mid lift flow as well as making the chamber stronger for high boost applications. The valve cover is raised on the head but only slightly so there is no need to relocate the alternator like on the ET heads.

PREDATOR-Z

What seats are you using for the 2.04?

Brian Tooley Racing

iTrader: (13)

The TFS heads have a 2.125" diameter ductile iron intake seat, or are you asking about our ported 243 castings?

GasTiresandOil

iTrader: (2)

How much longer pushrods are these going to be using? I know the ETs are using signifcantly longer PRs, I just want to see how much more flexing these will be having since they probably will be longer than stock.

LsReddog

7.700