ideas heads for 408

**lancesT/A** · 07-04-2009, 01:00 PM

Im building a 408 and about to order heads wanted opinions i was planning on going with the TF 215 64cc which will run me 2400 but the patriots are about half the price was just wonder if i really am getting what i pay for with the trickflow heads or if i can get a better bang for the buck heads

**Bouvers** · 07-04-2009, 01:48 PM

I would personally get AFR 225's

**9T8W66** · 07-05-2009, 05:28 AM

L92's

**shady milkman** · 07-05-2009, 06:11 AM

stay with TF ..those are very solid heads..they also change the valve degree from 18 to 12-13 ...TF gets its castings from AFR ..then they work them over and wala you have the TFs ...

**SHovV** · 07-05-2009, 10:27 AM

i think you'll also need special valvetrain with TFS.

**shady milkman** · 07-05-2009, 10:40 AM

Originally Posted by SHovV

i think you'll also need special valvetrain with TFS.

no you dont .......

**lancesT/A** · 07-05-2009, 10:54 AM

ya i told my shop i was thinking about go with different heads and they said since im spending about 10k all together with my 408 build they would give me a discount on the heads and sell them to me for 1800 instead of 2400 so that is my choice thanks for the input

**shady milkman** · 07-05-2009, 10:57 AM

Originally Posted by lancesT/A

ya i told my shop i was thinking about go with different heads and they said since im spending about 10k all together with my 408 build they would give me a discount on the heads and sell them to me for 1800 instead of 2400 so that is my choice thanks for the input

good choice ! i will be going with TF for my heads when i get the money for my 346 build

**Bouvers** · 07-05-2009, 12:10 PM

absolutely nothing wrong with TFS although you do have to run roller rockers with their valve train geometry... I wouldn't care as I would be doing the upgrade regardless but just so you know...

I recommend Yella Terra... affordable and excellent...

**NoscamaroSS** · 07-06-2009, 08:52 AM

Originally Posted by shady milkman

no you dont .......

You cant run the factory rockers with the TF's

**Hi-Po** · 07-06-2009, 09:03 AM

Originally Posted by NoscamaroSS

You cant run the factory rockers with the TF's

**anniversary30** · 07-06-2009, 09:22 AM

What about dart? I have the 225's and they ran about 1800.

**shady milkman** · 07-06-2009, 11:06 AM

Originally Posted by NoscamaroSS

You cant run the factory rockers with the TF's

i understand..but i dont classify roller rockers as special valve train and i dont think the op was talking about bares..so all would be supplied

**NoscamaroSS** · 07-06-2009, 12:59 PM

Originally Posted by shady milkman

i understand..but i dont classify roller rockers as special valve train and i dont think the op was talking about bares..so all would be supplied

True, I was just trying to clarify so the OP doesnt get confused or accidentaly mislead.

**lancesT/A** · 07-07-2009, 11:31 AM

the heads come fully assembled with roller rockers included

**need4fun2469** · 07-08-2009, 06:10 PM

Is there any downside to running L92's?

**Hi-Po** · 07-08-2009, 06:27 PM

Originally Posted by need4fun2469

Is there any downside to running L92's?

Limited on the intakes you can run. L92's have proven themselves, they are great heads with some mild port work.

**need4fun2469** · 07-09-2009, 05:18 PM

Originally Posted by Hi-Po

Limited on the intakes you can run. L92's have proven themselves, they are great heads with some mild port work.

can you be more specific? I have been trying to research the pros and cons of these heads.thx

**Hi-Po** · 07-09-2009, 06:28 PM

Well, The L92 had is based of the LS7 head. Different port design. LS1/2/6 = cathedral port.

L76 intake will work on the L92 heads, but I do not believe it will clear any fbody hood. The LS7 intake I beleive will fit also. And, if some would correct me on this, I am pretty sure the "new" 102 mm way over priced-barelt worth noting gain- over a 92mm FAST intake will work also.

Maybe someone will chime in here with L92 heads who has first hand experience, I do not. Im here learning right beside you

Havent heard of too many L92 runners here though.

**Bottesini** · 07-10-2009, 05:08 AM

Originally Posted by Hi-Po

Well, The L92 had is based of the LS7 head. Different port design. LS1/2/6 = cathedral port.

L76 intake will work on the L92 heads, but I do not believe it will clear any fbody hood. The LS7 intake I beleive will fit also. And, if some would correct me on this, I am pretty sure the "new" 102 mm way over priced-barelt worth noting gain- over a 92mm FAST intake will work also.

Maybe someone will chime in here with L92 heads who has first hand experience, I do not. Im here learning right beside you

Havent heard of too many L92 runners here though.

Right now your only options that I know of for intakes with the L92 heads are the LS3 (not sure if this is the same as L92), L92, L76 (think there are a few carb style intakes as well). The FAST 102 will also be for the L92 heads.

I have been doing quite a lot of looking into these heads, and plan on putting a set from West Coast Cylinder Heads on my new 402. For the dollar they are great heads (flow great even in stock form). However, you are severely limited as far as intakes, and I would not expect to make a high rpm screaming engine (yet). Eventually, I believe that the rectangular design is where heads for the LS are headed, just the everything needs to catch up.

As for the OP it really depends on what you want to do with the engine. Trick Flow makes great products and I have heard many good things about them. They also have several heads that will work well, it just depends on your application.