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These heads are flow tested on a Superflow SF600 at 28 inches with a 1/2 inch radius intake plate and short stack exhaust tube
These aluminum housings simply replace the stock cast iron housing
look no further than Speedmaster gaskets for the best sealing power
The runner length and the tapered cross-section were designed to perform well for a wide range of engine configurations
4" Rear Lift Block High Strength Steel 2wd 4wd These heads are flow testedAdjust your ride height with Speedmaster lift blocks. Speedmaster blocks are manufactured from top quality materials and are tapered to improve vehicle driveshaft angle.
