New Cylinder head for sale

[BIGTAZ351]

The "Type 03 Head" has 21° Valve angles vs. 33° and has hydraulic lash adjustment... Per JIS standards the new engine/head made 5HP (JIS Horsepower) than the older solid shim bucket style we continued to get here in the states... (Odd Because in the push rod world, solid lifters ALWAYS make more power) But because they knew they were gonna lose a bit of power they might have put a smidge more duration into the new roller cams... IDK what DOHC valve angle differences make, but in the push rod V8 world LESS is MORE! - (These Engines are so "Under Stressed" from the factory at 1.2HP per cubic inch...I would think with proper tuning (New Cams) that 1.5-1.7HP per CID could be possible if emissions are not a concern.)