351 Ore 400

[79fsb]

I am looking for opinons on which engine is better to rebuild a 351 m or 400 the bronko is used everyday and tows a 5500 pound tralier sometimes and the bronk is four speed any ideas would be great

 

[f250rangerexplorer]

a 351M and a 400 are identical except the crank and pistons. i'd go with a 400 or if you are gonna buy a block go with a 429/460. Same trans pattern only different mounts