Wehrs Machine Carb Insert 2" Tall 1.00" Diameter Crankshaft Mandrel Spacer so you don't have to

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spread port headers are required since the center ports are spread further apart then stock GM products

300" taller Solid Roller Lifters from COMP Cams are engineered to withstand the demands of aggressive cam lobe designs and increased RPM ranges

1989-1991 Chevrolet R2500 Suburban CID 454 GAS

Wehrs Machine Carb Insert 2" Tall 1.00" Diameter Crankshaft Mandrel Spacer so you don't have toProduct Description: Restrictor Plate Insert 2 In Thick 1. 000 in Diameter Bore Aluminum Natural Wehrs Machine Spacer System Sold Individually Wehrs produces custom machined chassis and engine components designed for racing use. Their lineup includes everything from mounting brackets to cover panels, birdcage assemblies, and much more. Many of their parts are made from lightweight aluminum. They also offer a number of specialty tools. Wehrs Machine &