Authentic Cal Customs finned aluminum valve covers for a small block Chevy engine. Approx dimensions are 19-1/2” x 5” x 3-1/4”. Bolt holes are approx 8-3/4” and 10” apart. Casting mark reads: CAL CUSTOM GARDENIA CALIF. 40-1000 Covers have been professionally media blasted and are ready for paint or polishing. $100.00 obo + shipping