Ron@Vengeance

iTrader: (51)

THIS IS A REPOST OF THE ORIGINAL. PLEASE KEEP THIS ON TOPIC. THE INTENT OF THIS THREAD IS TO INFORM PEOPLE WHO ARE IN THE MARKET FOR A BUDGET HEAD HOW THESE TWO PARTICULAR PERFORMED ON A MILD COMBO.


That Being said.....


This is a nice comparison. Customer came in to get his combo tuned after installing everything himself. Car is a C5 FRC with a forged shortblock(STOCK CUBIC INCHES)/all bolt ons and an FMS F14 camshaft (low 230s duration)... After making 418 to the tires several times the owner wasnt too excited with the results. He stressed that he wanted more power but didnt want to go up in camshaft and lose the drivability he has. We showed him a set of the TrickFlow 220cc As Cast Cylinder heads and told him these heads should produce 15 to 20 more RWHP over the Darts and he could sell his Darts to offset the cost. So off came the Darts and on went the TrickFlows..... NO OTHER CHANGES WERE MADE. Results are below...

19rwhp gain
17rwtq gain

This is thru a full exhaust and an LS6 intake. Not too shabby for a set of 1679.00 Budget Cylinder heads NOW that the car is making some respectable power for such a mild combo we will add a Ported FAST and pick up another 20 to 30 and be in the high 450s/460s....







**DISCLAIMER**
We know the Darts are 205cc and the TFS heads are 220cc.
We know the Dart heads are on a 15* Valve angle.
We know the TFS heads are on a 13.5* Valve Angle
We know if you put another $700.00 into the Darts they perform better.
We know the customer could have installed a FAST and picked up power.

Keep it on track ladies and gentlemen.........

Damian

iTrader: (89)

It will stay on track. Any replies that are not on track will be deleted immediately. Continuous off-track replies or drama will earn somebody a free 7-day vacation from the site. This isn't General Hospital, this is a tech forum.

Last warning ladies

Damian

iTrader: (89)

On another note I can't wait to get these on my customers car along with the Vengeance ported intake. Should be another nice A/B comparison for the masses to see on the Trick Flow as casts.

cws T/A

iTrader: (3)

Was there a static compression ratio difference between the two ?

bww3588

iTrader: (49)

^^^me 2

bww3588

iTrader: (49)

i was looking at the dart heads, and also looking at the as cast heads. which would you reccomend for a 408 build looking for 550RWHP thru a 9 inch?

ExceSSive

iTrader: (13)

Will TFS 220 fit on a 408 ci motor? Or is there a bigger bore available? I would be interested to see some of thon a bigger motor. That is impressive though in IMO for an as cast head. I have some AFR 205s on there now and love the thottle response. Keep the results coming...I'll be watching for them.

DAVESS02

iTrader: (30)

If you wanted to get the TFS as casts ported later, how much? Could you just send in the bare castings and have the ports done and the customer re-assemble when they got them back?

bww3588

iTrader: (49)

TEA will port your as cast heads for 600 bucks. i have already confirmed this with him.

1989GTA

It would have been interesting to know what the actual cc's of the combustion chamber of each head was. I know old thread.

JPH

iTrader: (2)

Nice comparison. Did anyone bother to poor each head and verify volumes? Just curious.

KB99WS6

iTrader: (6)

Honestly, I am surprised to see how low those number are with well-reputed aftermarket heads and a BIG cam. The same results are usually seen with much cheaper heads and a much smaller cam.

98camaroLS1M6

iTrader: (35)

Yes they will work, of course a TFS225 or TFS235 would be a better choice if you're looking for max hp/tq and have that extra 600 dollars to spend over the as casts. For the money the as casts are a great deal and they flow very close to the TFS215s.

98camaroLS1M6

iTrader: (35)

The numbers are stout. Dynos vary and so do peoples shortblocks, this is simply an A to B comparison as Ron and Damian have stated. I'm sure as Ron has stated one of their port-matched intakes and the car would make 460+rwhp.

bww3588

iTrader: (49)

you also have to remember, this is in a vette, which eats up a little more power than an f-body as far as drivetrain is concerned.

sixpack_2_go

iTrader: (1)

awsome thread! i have an f14hl cam and i have been searching for a good set of budget heads. i decided to go with the trickflow "as cast" heads a couple of days ago and then i stubbled upon this thread today.... perfect timming

wat injectors did you use with this set-up?
i have heard that aftermarket rockers are required with the TFS heads...do they need to be adjustable?

NEMESISVETTE

iTrader: (2)

Big Cam? I wouldnt call a 232 234 .598 .598 cam a big cam. The F14 cam is a great mid range cam and I love the power threwout the RPM. This car has a untouched LS6 intake manifold, not the usual Fast intake manifold that people throw on top of a head swap. Im sure I would pick up another 17 to 20 rwhp with a ported Fast from Vengeance.
In the dyno I only had stock 28.8 injectors. I recently put a set of F.A.S.T 36# injectors. I recommend using Yella Terra non ajustable roller rockers, thats what I did. Price was $375 bucks and worth the money. Any aftermarket head that has bronze valve guides needs roller rockers, TF just the only company that steps up and admits it.

sixpack_2_go

iTrader: (1)

thanks for all your help man. keep us posted if you throw an intake on there. i would be intrested to see the results.

69_YENKO

iTrader: (16)

the more i read the more im finding this to be true.

69_YENKO

iTrader: (16)

For the record, sometime in the past week or so YT upped there pricing on the 1.7 non adj. rockers to $450. kinda sucks because when i was pricing everything last week for my trick flow swap they were still listed at around $375-380 on all the sites.

I spent this afternoon trying to find a vendor who hadn't updated to the new pricing and finally came across just one. so for 385.99 i jumped on it, who knows how long it will be before they realize and update there pricing as well. PM me if you want to know who still has them at the old price.