'88 up L98 vette setup here, bolt on, no issues....
been there 15 years now....
just remember you need use ALL the bolts on the a/c mount into the front of the head...without them ALL you will shatter the casting....there are two fairly close on the inner/upper front of the head, and if you have earlier iron heads that second/upper hole/boss close to the forward intake bolt is missing...you can fashion a steel L bracket for that position, but if you don't, you will have a problem...
don't ask.....once again thankful for my TIG buddy....
:clobbered::tomato: