im looking into these this winter and i was wondering if theres anyone on here that actually has them installed and running. ive seen a couple guys mention they were thinking about getting them or were going to, but never found anyone that actually has them.

 

i'm looking at a set too, but i'm wondering what the gains would be

 

Heads are what create flow into and out of the cylinders and are what make HP. Its the absolute best investment you can make to modifying a motor. Supersix heads with 1.8" intake valves will be my next investment on the motor. You can not port and polish your heads at hoime properly and equally without a bench flow unit to measure CFM into each port equally and also render maximum flow. Nothing Can compare to professionally done heads.

 

i fully agree dean, for a professionally done set of heads its very expensive, might aswell buy the best

 

all i can say is if you are gonna do it, might as well fork out the money, and do it right the first time....
keep in mind that supersix doesn't have any cores, so to get them ported and polished you have to send them a set of heads to do, and they will p&p them and send them back to you!

 

ive already spoken to them about all this. they come back P&P, 3angle valve grind, blended bowls, comp cam valve springs and all that good stuff for $850 plus we have to pay shipping to and from.

so no one actually has these heads huh? im having my intake done by someone else, since supersix wants $500 to do the intake and i can get it done for $150.

 

850.. ouch

I got 3angle, springs, retainers, locks done for 250 locally when I had mine done.

However, heads are the key to air movement. I wish we had other options then just porting GM stocks.

 

was that ported and polished too dale?

 

no, I did some cleanup on the casting flaws myself. Then polished the exhaust side.

No real porting to speak of.

 

If I ever get ANY free time, we'll have the option of FWD Aluminum heads

 

if i ever had the time, i would start on a set of machined steel heads for mine, but then i got to come up with a 2 blocks of steel atleast that size, big $$$$$$$$$$$$$. i did manage to get the iac valve made up so we can use the ford throttlebodies now......

 

maybe aircraft aluminum if i can get to price it!!!

 

I'm talking some where we dont have to rebuild the engine with different pistons, and different intakes.

Basically, take place of the heads now, not changing anything else, that will flow better. I dont ask for much do I?

 

ok im guessing no one has them, so what did anyone who has P&P heads pay for them to be done and how does $850 compare to what you paid and got with the heads: springs, etc. im just trying to see how this will compare to any other places, the best bang for my buck

 

honestly, I dont think "alot" of people on here have p&p.

Off the top of my head.
Doward
Alan
Redraif/Joe

I "cleaned mine up".

Dean will be
Shaun will be
then you

 

well i got a quote for p and p 3 angle valve job, and blended bowls, for 500 cdn for both heads, i think this is a much better deal, as shipping would rape me, check out local machine shops

 

I'm more polished, than ported. I didn't even gasket match the heads

 

any update on an intake doward?

i've already started ordering parts for my new 3.4 and want a good intake, its either that or i pay to have the stocker ported out

 

i dont remember the exact price i was quoted for 3 angle and P&P, but i remember once i included buying the springs, retainers, etc, it would have come to at least $100 more than supersix. but that extra hundred would probably go into shipping. no matter what way i go, im hoping to get this pretty major upgrade underway as soon as snow falls, or its too cold to drive it anymore (no heater core). its possible i could be right on alan's tail, lol.

 

i would get it done locally myself, the 100 would not cover all shipping and other charges, plus if the heads get dropped and cracked your out of pocket all that cash

 

very true about that kretos

 

Thes are the exact excusses as to why no one here has a truely powerful natuarally asperated 60*V6 RWD motor. I have built many motors in the past in many various applications and I personally know the value of professionally ported heads on a performance motor.

I will definately ber going to Supersix since they have done the R&D on the 60* heads to get the most benefit out of them.

I can't preach this with any more importance than I already have- I will just say again the heads are what make you HP.

 

correction to dale's post,
Shaun (me) just finished polishing up the exhaust side, and just polished up the chambers with a really fine wheel on my dremmel,
i also gasket matched the head to the felpro gasket. my next step is to remove the intake base when i put the heads on, and gasket match that too with a slight porting there too.


even though i am doing all this to my spare set of heads, the set that is on the car now, will deffinately be going to supersix to get the full all out treatment.

i agree with dean on this one....
spend the money, take a chance, heck if they do get dropped, take a trip to the junk yard and get a set off a car totalled in the rear!!!!!!!!!!

 

i fully agree with you dean, if i had the 1400+ dollars (in canadian funds) to get my heads done from supersix, i most certianly would

but since most of us are not making a race motor i think this is an area that a good machine shop can do a very good job that will give the gainsmost people arelooking for

 

so do canadians have higher average salaries(in canadian $) than us citizens(in us $)? or do you just get raped by the exchange rate?

 

i dunno, but i know i got the pass side bank completely cleaned up and will be polished by the end of the weekend!!!!! once this set is on the car, it is time to send the other set to supersix for the job to get done professionally!!!!

 

I'll explain something further to you guys wanting to port your own heads in your garage without the proper flow equipment.

What happens is you can not balance the flow in each port equally since you have nothing to monitor the cfm flow so when you are finished you most likely have say:

port #1- flowing 148cfm @ 4000 rpms
Port #2- flowing 137cfm @ 4000
#3 at 151
#4 at 142
#5 at 136
#6 at 129

What does this do? It causes unequall fuel charges entering each cylinder causing richer and leaner conditions through the cylinders firing order and causing unequal combustion pressures onto the crankshaft. This is minor but will cause wear over time and reduce the life of the motor as well as kill power.

The ports need to be machined equal and bench flowed to insure the most power gain and smooth running performance.

This is why Extrude Honing is so hard to beat because it forces the abrasive putty through ports and anywhere there is restriction the putty force will remove and equalize flow.

 

well the minimum wage is 8 dollars canadian here, its not even the cost of the product that i care about, its duty and bull**** fees by shipping companys (ups fedex), i bought a tds wonderbar, cost me 80 canadian after tax and shipping from tds, fine by me

then it gets to my door, ends up costing me an additional 50 dollars through ups in brokerage fee's and customs fee's, a friend of mine bought a video card off ebay for 120 bucks, ended up costing an addition 100 in brokerage.

it means i really have to plan and find out exactly what i want, only major purchase i'm making from the us is a bunch of suspension stuff from spohn, as imho they make the best products.

other then that i can get exactly what i want locally usually

 

wow, minimun in cali is 6.75, and i think that may be the highest in the us, so at least you guys dont have to spend a vastly higher % of your salary on the same things. those brokerage etc fees sound like a crock of bull**** to me, you should protest. maybe i just dont understand brokerage (customs i can get, but brokerage?), but that sucks.

dean, what are you doing to your motor to make it a 3.5? a .030 bore only makes it 3.411, right? are you increasing the stroke a tad? im curious here because when i do mine i want to make every cc count.

 

i'm curious too, 3.5 sounds good

 

3.4L is a 3.62"bore /204ci
.020 over is 3.45L (3.64" bore)/206ci
.040 over is a 3.5L (3.66" bore)/209ci

The most you can go safely is 3.68" bore which is a 3.525L motor or 211ci.
3.69 is questionable with some blocks.


I am planning on going to at least a 6" rod. Maybe even a 6.2" rod if Calif fuel keeps dropping octane points. We are down to 91oct max and it may soon be going to 90oct rumor has it. I will have custom pistons done at Ross (they are local to me) after I have the block bored and decked and the get the Supersix heads (cc size).

The Octane trouble is the entire reason why I want to go the Supercharger route with this car and leave the compression low for normal use. I can swap the pulleys and belt and add some Xylene to the tank if I increase the boost for any racing events

 

ok, so the info i heard was wrong then, that makes sense.

cali going to 90 octane????? like our gas isnt crappy enough as it is. that means regular is going to go down to 85/86 probably, gah. thatll put a lot of cars in super unleaded(or plus or whatever you call it) range(old crappy cars like mine that knock on 86(but not 87 . . . )), those money leeching bastards.

I wish i didnt like california so much, or id move. but i cant bare to leave the wonderful combination of valleys, forests, and beaches.

will a 6.2 rod fit in our block? im assuming your gonna get some really low height pistons(how low are you looking at, and a .01 or a .02 deck?), but will the rods clear the internals?

im really interested to see what you and other people are planning/doing, this is a major learning experience for me and i'm soaking it all up like a spounge.

 

Naft, What I plan to do in sequence is to get the block bored and decked so I have the figures.

Then I will contact Ross with the figures I have and tell them what my intentions are and can they build a piston reliable enough with the wristpin having adequate clearance from the oil rings using first a 6.125 or 6.2" rod and have enough deck gap for about 9.5:1 compression with the 55cc Supersix heads and a .040 thick head gasket.

If they say it can work with a longer rod than 6" and the rods are in my price range (6.125" and 6.2" can get quite pricey over the more common 5.7" and 6" rods) then I will have them build pistons to what length I choose and I will have them make the rod to piston diameters and thickness on the piston underneath just identical to SBC small journal rods.

I will then buy the rods I want and have the crank end of the SBC rods milled narrower to fit into or crankshaft journals.

 

dean you are planning what i am about to do........ i found out that the old chevy small blocks use 5.700" rods, the same thing as our cars run stock(supposedly) the only difference is the width, and the wrist pin diameter!!!!!
why the heck are you gonna deck the block? shave it down a little for better, straighter mating surfaces i understand but why deck the block?