summit racing ls3 hyroolic cam cnc ported cylinder heads

x 8 mm Stem, Beadlock -MA 11661ġ. The BR 3 series shares all of the legendary BRODIX features including easily repairable A-356 virgin aluminum alloy and the strongest deck surface in the industry. Both heads utilize a 15° valve angle, a 71 cc combustion chamber, and a 2.165 / 1.590 valve combination, and accept all standard LS3 components. The BR 3 is the unported version designed for outstanding “out-of-the-box” performance. At the other end of the scale at Summit is the complete E-CNC 355 big-block rectangular port head for 1629.95. There are many Aftermarket Heads available. to increase compression and better airflow. It is also common to CNC port and/or mill them up to 0.030 in. The lighter hollow stem valves used in the LS3 can be installed in L99 heads to increase the rpm range. Bare, the E-CNC 185 head retails for 738.99 at Summit Racing Equipment. The L99 and LS3 heads have rectangle intake ports. It also engineered to accept pre-1986 intake manifolds. MTI Racing cylinder heads are precision CNC machined in house on our Haas and DMG Mori 5 Axis CNC machines to ensure that exact tolerances are maintained. The E-CNC head stays with the stock 23-degree valve angle. MTI Racing provides a CNC Ported version of the Rectangular LS3, LS9, and L92 Cylinder Head.

The BP BR 3 is a 100% CNC ported head that features a 280 cc intake port that flows over 363 cfm. MTI Racing GM CNC Ported Rectangular Cylinder Heads (LS3,LS9,L92) Price : 1,495.00 per pair. BRODIX delivers the industry’s most durable replacement for the LS3 style cylinder heads with the introduction of the BR 3 series.

Summit racing ls3 hyroolic cam cnc ported cylinder heads