I have a good (fresh) 454 that has been sitting for many years.... wow, like just shy of 30. Time flies when you're having fun.
It was in a hooligan street truck, PO had to go to prison for a bit and I bought it hearing it run and it was strong.
Never used it so I just started to disassemble, clean and inspect the rotating mass.
From what I've seen so far with the heads and pan off it's a basic 72-78 2 bolt main block. 3999289
Stock bore, flat tops with valve relief cutouts. No specs but it has a lumpy cam from hearing it run years ago.
Cylinder walls still have cross hatch. At this point I am assuming stock rods.
Gonna be topped with a 2x4 tunnel ram in a v-drive drag boat and raced with an occasional river/lake cruise.
Try to keep revs <6500 but you know how that goes. Just out to have fun, not rule the world.
I usually run non oxy pump gas in stuff like this, may mix some AV gas if needed.
Also have rev and timing control ignition for this project. Prolly use 10-40 earl.
Would like to make sure the clearance specs are within marine tolerance. if not, make them so.
After searching and reading way too many threads on BBC bearing clearance for boats .....here's what I got.
Please correct me if I'm wrong.
Piston wall to skirt_______.007
Thanks for any input or comments. This is a great site.