[Steeveedee]

I'm leaning towards the 454, mainly for pulling torque. The truck slows quite a bit pulling hills with my 26 foot travel trailer. If I do this, will all my ancillary equipment fit? Seems like all the holes would be threaded metric, nowadays. It also looks like I'll have to run headers or get bolts with shorter head heights on the bottom row. I prefer not to run headers.

The claim is that these now have the boss for the mechanical fuel pump, but then in the detailed description it says you need to buy an electric fuel pump.

I've done tons of engine work, but not so much in the last 15 years, so I'm full of questions. I tried to chat with a tech person to get answers, but the application wouldn't come up, for some reason.