PRO1 LS 15° 280cc (LS3 compatible)
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 cylinder head for GM LS series small block V8 engines take performance to the next level. Offers higher performance and more versatility than factory designs.
The 15° based high performance cylinder head has better airflow, more efficient combustion chambers and more user friendly features than production LS castings. The Dart PRO1 LS 280cc cylinder head retains stock valve angles, stock valve locations and stock accessory mounting holes to make installation easy. Virtually everything else has been improved.
Heads are sold individually.
PRO1 LS & SHP LS NEXT TECH NEWS
Dart LS Next 427 Dyno Test: https://www.youtube.com/watch?v=rDPKqKLUeG8
Material: RMR Cast Aluminum Alloy
Valve angle: 15°
Intake port volume: 280cc
Intake valve: 2.165”
Exhaust valve: 1.600”
Chamber Volume: 68cc
11030050 – Bare Head
11030152 – 1.290 Beehive springs for Hydraulic roller 2.165” / 1.600” .625”
11030153 – 1.295 Dual springs for Hydraulic roller 2.165” / 1.600” .650”