new cast iron small-block offer an increase in performance and visual appearance over stock-style . Their compact design fit into a wide variety of replacement and engine swap applications. This you get the traditional look and easy fitment of a stock style but now with a smoother, cleaner appearance, plus more features. These are cast out of high silicon-molybdenum iron for high temperature strength and better resistance to oxidation and cracking. Internally these have a larger than stock 1 5/8-inch cross-sectional area and 2 1/2-inch outlets for better flow and improved performance. Offered for rectangular port heads, these fit many popular applications including straight, Vortec straight and angled plug head designs. Gaskets and hardware are included, along with flanges to in downpipe installation.
Features:
A smoother, cleaner appearance compared to stock , while maintaining a style look and feel
Made from high silicon-molybdenum iron for high temperature strength plus resistance to oxidation and cracking
Designed with a larger 1 5/8" cross-sectional area and 2 ½" outlets for better flow and increased performance
Available for rectangular port heads
Accommodates straight, Vortec straight and angled plug head designs for better application coverage
Includes flanges for easier downpipe pipe installation - downpipe required-
Available in natural cast iron finish
Includes mounting hardware and gaskets for inlet and outlet flanges