On a GMC the first 3 #s on the flat by the distributor are the cubic inches. C 2488022 is a 248. Depending on tour plans a 248 is a strong engine. How many Chevy guys are happy with a 235? Too many people can not be honest with them selves when it comes to engine choice and build. A strong 248 is a good street choice and looks just like a 270/302. Beater
