The manifolds are available for STD (9.240"), mid height (9.45"), and tall deck (9.750") blocks.Whilst the runners are shorter to begin with, we didn't want to make this a high HP only intake, so the cross section of the runners in its as cast form were kept to 4" in area at the plenum, so as to be useable in combinations around the 650HP mark, as witnessed by the School of Automotive Machinists testing. The manifold features near equal length runners that are shorter than existing single plane manifolds, allowing the potential for greater RPM and HP levels.Off course that intake was a hand ported by BES racing, but no welding was required to achieve these numbers. But if that isn't impressive enough, (see dyno graph below) how does 1100+HP and 740 FT/LB of torque from a cast single four manifold! That's the dyno proven potential available in this unique design, as tested by BES Racing on a 457 CI, 16-1 combination.The engine not only won the Nitrous class, but also took home Horsepower King and Torque Monster at the competition.Most importantly though, for those who might think this is a race only large plenum intake, the BE LS 4.0 outscored the MAST intake on the averages between 4500RPM and 7200RPM by a significant amount on a 6 liter engine !!! The BE 4.0 LS as cast, made 50HP more on the peak numbers and 60HP more at Peak RPM using the Same Cam and Carburetor.During testing for the 2016 Engine Masters Competition, the School Of Automotive Machinists & Technology ran a test on their 367CI LS engine of our as cast BE LS7 intake against a CNC ported and hand-finished Mast Motorsports LS7 intake from their 2014 Engine Master's engine. That's not a boast, but a dyno-proven d reality.Made in the USA and CAD model with extensive use of Computational Fluid Dynamics, the BE-LS7 & LS3 intake is the ultimate LS manifold for those who want the most HP from a single plane intake equipped LS7 - LS3 headed combination.
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