Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
first determine what your oil pressure actually is put a different guage on it
if the pressure is dropping that low as it warms up you probally need bearings in the bottom end
we put one behind the nv 5 spd in my dads cummins diesel it has been problematic but most of that has been in the tranny end of the equation it has had bad effects on the nut that retains 5th gear not a problem one would have with the 727
the idea that you get a six speed while technically...
the 73 block is just fine it may have a cast or forged crank easy to tell as the forged crank balancer is about a inch wide the cast crank one is double that with a taper on the edge and a big honken wight on the front
but compression is low and cam timing is retarded
cheap way to make it run...
the welding is really not that hard to do as you make very small welds the trick is not to get carried away in a hurry
You are not trying to run a pefect bead you are basically making a bunch of tack welds
yep I know that was my point that with the right setup that many a 383 has spanked it bigger brother just as many a 383 roadrunner ran harder then most of the gtx that where in the same show room
matter of fact the 383 my buddy had came out of my 70 charger as I sold it to him to by my 73
bc/cc I did my bike a few years ago with HOK paint it came out great for a first attempt but that was because they provide very precise tech instructions that I fallowed to the letter
very expensive
stuff the bike cost about 700 to do about 10 yrs ago
If you take the Pontiacs for what the were the where cool I had a 73 firebird formula with a 455 great car for doing donuts but not much else as no tire seemed to stick but rpm work not but for moving a safari wagon around great but the intakes to get under a low hood the air had to change...
383 and 440 share the same heads in any givin year the blocks are also equal
the later castings 440 & 400 after 75 got less meat in them wight difference is maybe 10lbs if that nethier one is is slouch in the performance arena 57 cubic cubic inches is an advantage but many a 383 has smoked its...
I have been messing with big block mopars for about 30 yrs now and really everyone says go with the 440 as I tend to also
that said the 383 will be a forged crank and and a better runner with posibly a better block casting
the 440 depending on year probaly is an external balance cast crank and...
assumeing that one has the flow to support any givin air requirment and valve train as well the limiting factor becomes piston speed and burn rate
big block mopars have a very short stroke for there displasement(lower piston speed) and an almost ideal rod ratio
the best bottom end of there...