318 build using 302 heads

to put in 2.02s the chamber needs to be opened up to fit them! 1.88s or the 1.92?s from a magnum would be a better choice but the 1.92s would need new magnum size guides but weight less. the 302s just dont have enuff port to support a 2.02 and ant enuff meat to port them big nuff to ether...still a great small cube mild motor head!