Short if the long is this: spun a bearing in my 350, rather than spend $1000 to rebuild that motor I found a 454 that after opening up I found to be .040 over and 010/010 mains/rods leading me to believe I had found a jasper reman motor. Upon pulling this motor apart I found some rust in cylinders and heads were junk(exhaust valves beat the seats backwards). So I took to a rebuild. Pulled it all the way down, had crank polished, picked up a better set of oval ports(781 casting), comp extreme 4x4 hydraulic cam and lifters, comp double roller timing set, air gap intake, new rod and main bearings. I need to find a set of roller tips cheap and also a set of push rods. But it's going back together nicely. 112 more cubic inch's oughta be awesome.
462 bbc build for my plow truck
- Thread starter BigDMax05
- Start date
My 781BBC heads CC'd out at 119-120cc 10cc dome netted be about 9:1
I uped exhausted to 1.88 from 1.725 left intake stock
I uped exhausted to 1.88 from 1.725 left intake stock
I run 87 in mine, it avg 18-19 mpg in my 79 malibu with a 208/218° .475/.500" lift dynos 300/425 at the tires the air gap intake will be a PITA to start in cold weather and run rough till it warms up.. Ran one myself
When will it be back in the truck? I'd like to hear it run. I will always love the sound of a proper v8
Hopefully sooner than later! We are gonna be getting some snow tomorrow worthy of a plow. I'll video the start up and some break in when it goes down. I think it's gonna be pretty lopey at idle with that cam. First though I gotta pull a 5 spd with a cracked adapter housing and re clutch it and throw in a transgo and pump rub kit the tcase. After I get that done it's going in!
well I have kind of decided that putting this motor in my plow truck is really stupid! my plow truck needs way to much work for it to make sense to put this motor in it. So now I have a Big block sitting in the shop that needs a new home! FML smh.........