Frankenstein Engine Dynamics M311 273cc LS3 Rectangle Cylinder Head-Complete Set w/Billet Rocker Stands Set of two (2) FED Monster-Series M311 (LS3 11°) 273cc rectangle port cylinder heads. Heads are complete...
Recommended for engines with 4.000” bore or larger. Maximum competition, comp/modified drag racing, circle track, and heavy duty applications. Dart’s new LS based PRO1 LS 15° 280cc Aluminum square port...
Recommended for engines with 4.000” bore or larger. Maximum competition, competition modified drag racing, circle track. Over 7,000 RPM. Dart’s PRO1 15° 250cc LS CNC ported Aluminum cathedral port cylinder...
Recommended for engines with 4.000” bore or larger. Maximum competition, comp/modified drag racing, circle track, and heavy duty applications. Dart’s new LS based PRO1 LS 15° 280cc Aluminum square port...