FWIW we sell the As Cast 220's with PM guides, PAC dual springs, and Ti retainers for 2075.00 shipped. Used to sell them cheaper until the pricing on valves went up.

We've put together a lot of combinations using these heads with great results.

 

Thanks for reply martin. What valves are those.

 

Also martin would u recommend a cam change for me. Not so much power wise but longevity wise. I have tsp tsunami. Just a little afraid of that .654 or .648 whatever it is

 

Ferrea 6000 series.

 

2075 with no hand blending and a PACor 2100 with Brian Tooley blending the valve job and chamber and the comes with BTR Springs.... Yea... Id spend the extra 25 dollars for that with LJMS in a heartbeat...

 

The valves are made by Ferrea and are 2.04" diameter intake valves and Ferrea 1.575" diameter exhaust valves in stainless steel. TEA hand blends every set of TFS As Cast heads that we've sold. They blend the combustion chamber into the valve job and intake port throat area as well as the exhaust port throat area as well.

We also sell those heads with a PAC Hot Rod 1200 series spring or a 1204X RPM Series Dual Spring both with titanium retainers.

As far as changing the cam, it would really depend on how many miles a year you drive your vehicle and how you use it.

 

Good observation, hence why Id pay more for Brian to touch them if and when I get my next set of TFS

 

Thanks Martin. As far as miles its a weekend car and test and tune at the track when I get the chances to go. Already been through one set of springs(prc dual) in 10k miles now it has btr dual with about 500 miles. If I could get 15-20k out if springs and other valve train parts I'd be ok with that.

 

You shouldn't have any issues getting 15-20k out of the BTR springs with that cam. You could lengthen that interval with less aggressive ramps to 25-40k depending on the lobes used.

I'm not sure if BTR actually does more hand blending for 2100 or if he charges more for that. If he doesn't that is a very good deal. IIRC Brian told me at one point that he charged more for his hand blending, but that was before valve prices went up.

 

Martin, the LS3 valves were more than the Ferrea valves when I got my heads. Is it now more economical to run the LS3 valve? Seems like the price would be close.

 

That is a good question Jake. I would assume the price would be very close.

Lighter weight valve to boot.

 

2100 is complete... out the door with all work done... including cleaning and assembly.

 

Are these available with 6 bolt option?

 

And what can these heads be cncd to if need be. Is it 225 or 235.

 

I'd say take your pick. AI has a 230cc program for them. Chris Frank may have a bunch of different programs.

 

Just curious what you mean by "a lot more compression"?

I have been emailing back and fourth with Martin and he said the 64cc 220's with .040 cometic gaskets will put the compression at 10.9:1. He also said that I could go down to 63cc for 11.1:1 compression and still have plenty of PTV clearance. I am thinking about going with these heads and a 229/231 113+3 cam that Martin spec'd.

Thoughts?

 

The more compression you can get with adequate piston to valve clearance will yield you more HP/TQ across the powerband.

 

The as cast 220's are not available in a 6 bolt option...

You would have to step up to a CNC'd 225cc version to get that.

 

Your cam doesn't need a huge amount of compression. You'll run into issues.

The 205s come with 58cc chambers at stock PtV. They would work very well with something like the Polluter V2 which needs 11.8:1 CR to work well. The smaller port will yield more velocity as well. Which will help with part throttle, where big cams suck. A 205 port that flows over 300cfm will easily support 480+rwhp on a 346, so it's a very good head for big cams like the Magic Sticks, Polluters, Donkey Dick cams of the world. It's CNC'd, has PM guides, and the port design and small chamber are a very good match for big cams. It's also cheaper than the TFS As-Cast reworked...

 

What do you mean when you say I will run into issues?