Yes it's a bolt in swap. The problem with a 400 is it's a siamese boore so it runs hotter. You are better off I f you wan tot do make it faster or quickeris switch to a 383, that is a 350 with a 400 crank in it. There are several companies that make this and are readily available. Even GM has a complete motor for this app. You cna reuse your block if it's not to damaged.
Sunday, November 27th, 2011 AT 5:36 PM