351w vs 351m

goinbroke2 · 03-11-2017, 04:09 PM

Looking at the guide got me thinking, a 75 or so wagon came with both and was wondering if there are any opinions from those who are familiar with them, what would be the better choice?
351w
Lighter overall, good pistons and rods available but terrible heads and intake. 1.78 / 1.46 valves and .419 lift

351m is heavier with massive long rods with no replacement rods or pistons. But, 2.05/1.65 valves with better flowing heads and intake. .409 lift

Both run the same 1.21 carb.

Not sure if the heads will overcome the extra weight.

Thought?

03-11-2017, 04:09 PM	#1
goinbroke2 Senior Member Join Date: Mar 2002 Location: NS CANADA Posts: 888 Likes: 1,600 Liked 387 Times in 151 Posts	351w vs 351m Looking at the guide got me thinking, a 75 or so wagon came with both and was wondering if there are any opinions from those who are familiar with them, what would be the better choice? 351w Lighter overall, good pistons and rods available but terrible heads and intake. 1.78 / 1.46 valves and .419 lift 351m is heavier with massive long rods with no replacement rods or pistons. But, 2.05/1.65 valves with better flowing heads and intake. .409 lift Both run the same 1.21 carb. Not sure if the heads will overcome the extra weight. Thought? Last edited by goinbroke2; 03-11-2017 at 04:14 PM.