"I found a set of "marine&
"I found a set of "marine" Vortec heads for sale. Vortec heads could be a nice upgrade on a stock 305, obviously you'd need the proper intake manifold to go with the new heads. But what exactly is the difference between "marine" Vortec heads and regular automotive Vortecs? The seller said he doesn't know, except they came off a 305 boat engine and they are in great shape."
"I found a set of "marine" Vortec heads for sale. Vortec heads could be a nice upgrade on a stock 305, obviously you'd need the proper intake manifold to go with the new heads. But what exactly is the difference between "marine" Vortec heads and regular automotive Vortecs? The seller said he doesn't know, except they came off a 305 boat engine and they are in great shape."