thanks i was i was sure it was 68 block just says gm 48 on back clock day nightshift
J148 no 5.7 350
they sure dressed it up cool lol
its way more powerful than other 76 blazer with good wrench motor
thought it was original 400 for years thought 19L533203 WAS 69 CAMARO numbers
thanks for help
maybe valve covers belonged i have two camaros in my neiborhood 76 and 78 t top and a black z28
with spoilers they both have dead engines getting close to prying owners fingers off of them lol
very nice to meet you