3748772 Small block Chevrolet cylinder heads

Originally fitted to the 283ci small block Chevrolet.

Date codes G 15 58 and G 21 58, July 15th and 21st 1958

These heads will fit all of the small block Chevrolet range from 265ci to 400ci.

1.94″ Intake valves and 1.6″ Exhaust.

64cc chambers

The bowls under the larger than standard valves have been pocket ported and blended.

Resurfaced to 80 microns RA.

New 1.94″ intake valves

Guide inserts as necessary

Guide tops machined to .500″ for Competition Cams Teflon positive stop stem seals.

Pressure tested

Great heads for the old school look.

These heads do not have accessory bolt holes!