Frankenstein Engine Dynamics M311 273cc LS3 Rectangle Cylinder Head-Complete Set Set of two (2) FED Monster-Series M311 (LS3 11°) 273cc rectangle port cylinder heads. Heads are complete and assembled. Castings:...
The Most Extreme Cathedral Port Cylinder Head for 388-427 c.i. LS Engines. Raised intake and exhaust ports for superior efficiency. Unmatched flow characteristics in a 10 degree valve angle and...
The Most Extreme Cathedral Port Cylinder Head for 388-427 c.i. LS Engines. Raised intake and exhaust ports for superior efficiency. Unmatched flow characteristics in a 10 degree valve angle and...
