Engine Valve Cover Set 2015 chevrolet corvette single and non-adjustable valving allows

single and non-adjustable valving allows for your choice of ride quality

Manifold also fits 1961-63 Buick and Oldsmobile aluminum 215 c

13-15" wires are needed if making your own wires

We do not recommend adjusting height on the car without a thrust bearing kit

the power increases averaged 5+ ft-lbs

Engine Valve Cover Set 2015 chevrolet corvette single and non-adjustable valving allowsThe Edelbrock #4680 Signature Series Valve Covers are designed for Chevrolet 396 502 V8 '65 & later applications. Engineered for function and styled for great looks, Signature Series valve covers have stock style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold