Type 4 Store LE-200 Heads, Anyone Used These Options

[Mblizzard]

The write up sounds awesome but so is the price. Anyone have experience with these? I am building essentially a 2549. I have some good big valve heads that are ported, 44 intake valves 36 exhaust valves, dual springs, and chromoly retainers but may not flow as well as these. Not looking to build the beast of all engines but I am in so deep it is hard to stop. But $3,700 for heads is steep. Likely not as good but AA has similar heads for just over $2K. I think my current heads may leave some flow on the table but is really hard to justify the money unless someone else has an experience that makes this a requirement.

LE-200
Castings: AMC
Chambers: CNC machined 2.0 914
Chamber Step: 95.0 x 1.0mm *
Plug angle: 2.0 914
Plug size: M12
Valve sizes: 44mm x 38mm by Manley
Springs: Premium dual Crower set for 160lbs seat pressure & 330lbs at .520” valve lift.
Retainers: Crower Chromoly
Keepers: Hardened and ground for clearance
Intake Ports: Fully CNC machined with hand finished details.
Exhaust Ports: Fully CNC machined with hand finishing.
Introduced in 2004, the LE-200’s have become the benchmark for superior high-end performance Type 4 engines. So named because they represent the Leading Edge of technology and the intake ports flowed 200CFM @ .500” valve lift, a value they exceeded by the 2nd version. The exhaust ports average flow is 75-77% of the average intake port flow.

[Jetsetsurfshop]

Len outperformed my old heads on the flow bench. I didn't think he could because my old heads have 48x38 valves. I figured the bigger cambers and valves he would have a hard time to top. Bigger isn't always better!
I'm not sure whats wrong with your old heads, but if you need a set hit up Len.

[Mark Henry]

Len outperformed my old heads on the flow bench. I didn't think he could because my old heads have 48x38 valves. I figured the bigger cambers and valves he would have a hard time to top. Bigger isn't always better!
I'm not sure whats wrong with your old heads, but if you need a set hit up Len.

The reason is the small exhaust port, you can't put more in if you can't get it out.
T4 heads don't have much of a flow issue on the intakes, all I do is a quick clean up and blend in the seats. Time is spent on the exhaust ports.

Len has to do the CNC intake ports because of the AMC head core rework he does. I've use a couple sets of Len's heads, top notch.