400hp should be easy with what you're thinking about, even with iron heads. If you go aluminum heads, I'd bump the compression to around 10. AMCs like to breathe. For iron heads, I'd go with the...
Type: Posts; User: tufcj
400hp should be easy with what you're thinking about, even with iron heads. If you go aluminum heads, I'd bump the compression to around 10. AMCs like to breathe. For iron heads, I'd go with the...
The factory recommended no more than a .040 overbore on a 401. I've seen bigger, but not without a sonic check. If you get a 401 that's already bored .030 and been used, it may not clean up at...
The last 401 that AMC made was in 1978, so there haven't been any made in nearly 30 years. A lot of blocks that would have been scrapped years ago are now being repaired. Like MC said, good core...
