Kerns

Ultimately what would you do? I hear 4v B Heads will outflow Trick Flow 2v heads will out of the box. Ultimately, I would obviously need more then just the heads. Intake, timing cover, accessories, ecm, etc. But Trick Flow 2v heads are 2k$ and I can't imagine buying 96-98 cobra components would be more expensive than that. Anyway, I would like to hear an argument for each. Ultimately, I will be putting these heads on a forged shortblock so I will basically be building the engine outside of the car then dropping it in.

dwtjr3

good question im curious about this too for when i build a block

boduke0220

depends just how far your taking the hp/boost levels IMO...if your wanting 8-900 then 4v all the way ( get C heads) but anything under that id probably just stick with the trick flows. Although you could probably do a whole 4v setup for what just the tf heads cost lol

Kerns

B Heads outflow C Heads up top and have very similar flow characteristics down low. Only problem is the intake, but with FI it doesn't matter. B Heads are an amazing FI head and can be found retarded cheap.

teej281

Trickflows without a doubt. A lot less work to do. You don't have to do a harness swap and rewire the COPs and a lot less to worry about. Plus if you buy used heads, I'd have them rebuild and that costs a lot. So I'd just go with out of the box tf heads. Plus blower cams will be half the price!

Kerns

Trick Flows with blower cams is going to run you 2600$ range in parts alone. You really think I would spend more on a set of stock 4 heads/cams and other components? Keep in mind stock 4 heads will outflow Trick Flow Heads. Also, it takes all of an hour to switch the wiring on the COPs. Of course it will be easier to do 2v heads as opposed to 4v heads, but its not exactly brain surgery.

teej281

Well if I were buying used heads, I would be having them rebuilt for use on a built motor. then I would also want to be running a set of aftermarket cams and higher pressure valvesprings and oversized valves. So price out a rebuild with the proper valvesprings and valves and good valve guides and I'd just buy a set of TFS heads out of the box with all the good features that they have. Oh, and I'd also look at Nick's stage 3 PI heads. over 100% load in the mid rpm range.

01snake

B heads are garbage get c heads or 03/04

Kerns

B heads outflow C heads... and 03/04 Cobra heads are C heads. Although 03/04 Cobra C heads do outflow B heads, but only marginally so. Not sure it would be worth the extra 700-800$ for a very minor difference in flow numbers.

boduke0220

b heads only kill c heads if you run a retarded amount of boost. as in over 26-30 psi.

arguement is moot though, B heads plus some 98 cobra or fr500 cams will be a nasty combo and cheap too