Earl's Straight Adapter Fitting -12 AN Female to -10 AN Male - Blue CHOP2XL A direct replacement for all

A direct replacement for all 1955-56 Chevy passenger cars with six cylinder engines

Metric Spindle

37+ Adapter Fitting Cones

which results in increased engine speed before valve float

Sky Jacker

Earl's Straight Adapter Fitting -12 AN Female to -10 AN Male - Blue CHOP2XL A direct replacement for allEarl's offers the most complete line of adapter fittings in the industry. In addition to the standard range of AN adapters in both aluminum and steel, over the past 30 years Earl's has designed and manufactured a wide selection of special adapter fittings to meet the needs of the racing industry. These specials include metric to AN, inverted flare to AN and power steering fittings. Product Description: Adapter Straight 12 AN Female to 10 AN Male