Have 3 intake off 235 / 261, none mate to it. Exhaust ports all line up w/ other 235 / 261 exhaust manifolds I have. This odd one also has the firing order cast into the front runner which the others don't.
BC 1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc 1949 GMC 250 project in waiting 1960 C60 pasture art Retired GM dealer tech. 1980 - 2022
