Performer Centerbolt
Designed for 1987-95 Chevy 5.7L engines originally equipped with centerbolt valve covers (except Corvettes)
1987-95 intake manifold bolt pattern
High-velocity intake runner works with either T.B.I. or Tuned Port Injection systems
Maintains stock compression ratio when used with the recommended head gasket
Accepts stock centerbolt or Edelbrock aluminum valve covers ED4246 and ED4247