Fits 2001-2017 Chevrolet Silverado 2500 HD Ls Valve Cover Adapter Plates 241-297 catalytic-converters Increase Torque and Horsepower

Increase Torque and Horsepower

Base pressure adjustable from 40-75 psi

2 V8 2009 - 2021 GMC Sierra 1500 262/4

Adjustable No AN Thread 4 AN Angle 90 Degree Assembly Method Crimp On Brand Earls Collar Material Aluminum Compatible Hose Ultra-Flex Emission Code 5 Fitting to Hose Mate Type Crimp Collar Hose End Family Ultra-Flex Hose End Series 67 Hose Size 4 AN Material Aluminum Product Type Crimp-on Hose Ends Reusable No Swivel No Warning California Proposition 65

Fits 2001-2017 Chevrolet Silverado 2500 HD Ls Valve Cover Adapter Plates 241-297 catalytic-converters Increase Torque and HorsepowerSmall Block Chevy to LS Black Finish Holley's new cast aluminum LS valve cover adapter plates offer an innovative way to add the vintage styling cues of a 1958 1986 Small Block Chevy perimeter bolt valve cover to your modern GM LS engine. NOTES: Part # 241 362 is required to fill crankcase with oil when using these valve covers. Features: Constructed of Cast Aluminum Available in three finishes (Natural Cast, Black Painted, and Polished Finish)