I'm thinking about installing a 455 Olds into my car but I had alot of questions about the engine. I've been doing alot of research but I'm still not sure about certain things as I've heard varying answers.

Which heads are considered best? I've heard C, E and F heads were some of the best but that you should make sure that they have the hardened seats in order to work with unleaded gas.

Then I was looking for a carb, mainly one with 800 cfm but I wanted to know how you could verify the difference between a 750 and 800 carb? Are their parts #'s on the carb that distinguish between the two? I've read online that the last # tells you the difference between auto/manual but nothing has told me how you can distinguish the 750/800...

Was also looking for a Toronado intake manifold but wasn't sure how I could tell the difference between that intake as well...

Any help would be greatly appreciated!!!

 

Another question I was just thinking about, can a Toro intake (398664) which is from years '68-69 be used with a 455 engine of lets say in the '70's..

ARe either or compatible with each other??

 

All those heads are good. C easy to find and most desirable, E are good never heard anything bad about them, F are hard to find and pricey.

i don't know the how to tell which carb is 750/800. u should be just fine with a 750 quadrajet though. expecially if ur just using a stock intake.

and yes a 68-69 455 intake will fit a 70's 455.