The best LT-1/LT-4 head on the market.
Features include:
Built on New TFS aftermarket reverse cool casting.
200cc Intake Runner
62cc Finished Chamber (Can be Milled to 56cc)
2.02 and 1.600 Ferrea 6000 series valves
.600" lift capable Hydraulic Roller springs
10 degree retainers and 10 degree locks
.560" thick deck
Includes guideplates and 3/8" or 7/16" studs
Uses Lt-4 Intake Gasket
This head is ideally suited for built 5.7's
or 383"-410" strokers.
All flow numbers acheived on a 4.030" bore
fixture at 28"test pressure. Exhaust was 
flowed using a pipe.