01hammer

my friend has a 1996 454 mag with a cracked block. are those heads better then my 01 454 mpi. couuld i bolt the mag heads on if they are better?

Chris Sunkin

Post the casting numbers. Yours should be 990 heads- they're pretty good.

Knot 4 Me

How did the block crack? Make sure to have those heads checked thoroughly if you decide to use them.

01hammer

never winterized it cracked in lifter valley