Early GM aluminum V8 39s Page 4 The H.A.M.B.
a Detroit Diesel, 6V53, twostroke V6 diesel engine, not a gasburning, 283 Chev V8. And. yes, the 6V53 39s did and do come in both standard castiron versions and also in special nonmagnetic, 39militaryuseonly 39 aluminum block and head versions too. But in both cases, the 6V53 block and heads, whether they are iron or