[Jamezter]

ok so why can you put 351 heads on a 302 block but not vise versa?

[RLG34750]

Originally Posted by Jamezter

ok so why can you put 351 heads on a 302 block but not vise versa?

351 heads flow more than 302 heads

the are a multitude of reasons for not putting 302 head on a 351

the most important is that 302 heads can barely support a 302

Imagine running a marathon while breathing though a straw.....

That is what 302 heads would do to a 351.....