DCI Motorsports Super Cool Pump Gas 2X4 Billet top Pontiac 455 with RA5 Tunnel Port heads

This is a follow up video of Mr Sibley's 1972 Grand Prix after we got his DCI Motorsports RA5 Tunnel Port engine installed. The combo consists of our own aluminum cylinder heads we manufacture right here in the USA at our facility located in Atwater Ohio. The heads are topped off with our cast aluminum intake which we designed to be very versatile. I designed the intake with a removable top so we can configure this thing any way that a customer wants. 2X4's, 3X2's, Single Dominator, Single 4150, Supercharger, EFI. You dream it we will build it. This combo has a mid 250's @ .050" intake duration, upper 260's @ .050" exhaust duration with a 113 lobe separation. The compression is 10.8 -1 to be pump gas friendly. The bottom end still retains the factory 455 cast crank, but has been upgraded with forged Eagle H-Beam connecting rods and JE SRP forged pistons. The most impressive part of this engine combo is obviously the custom CNC machined billet 2X4 top and twin Quick Fuel 850 CFM 4150 style carburetors.

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