409hotrod49merc
Active Member
Hey guys,
I have a 348 truck engine in the corner of the shop, and the 409 is being assembled on the engine stand...... I thought awhile back I would open up the 348 and look her over, the block is a 3857655 my information shows (62-650 ) truck.... I removed the heads, one being a 3764702 and the other head being unmatched is a 3815857 looked like smaller intake valves, than a set of #333's I have..
At some point and time, are these heads worth doing anything with, as far as larger valves, and a little port work ???? Thanks, Steve
I have a 348 truck engine in the corner of the shop, and the 409 is being assembled on the engine stand...... I thought awhile back I would open up the 348 and look her over, the block is a 3857655 my information shows (62-650 ) truck.... I removed the heads, one being a 3764702 and the other head being unmatched is a 3815857 looked like smaller intake valves, than a set of #333's I have..
At some point and time, are these heads worth doing anything with, as far as larger valves, and a little port work ???? Thanks, Steve