Re: Project Blown 305
 

The problem with the Ford NP 205 is the front drive line output is on the driver's side, the NP 205 to use is from an earlier Dodge truck.

Re: Project Blown 305
 

Well I think I'm changing gears a bit in terms of front axle with the blower and the torque output of the v6 stock in going to need more heavy duty (also because if I can't find 4.10's for the eatons I'll have to run 40's lol)
So I located a place that would build me an eaton front axle.
I need to track down a local dana 61 from a 87-93 dodge 3/4 or 1 ton and an eaton rear axle with 4.10's and another drop out with 4.10's

It might be overkill but at least I can carry a spare drop out and get out of a bad situation and it will handle the big v6 output with the blower.


That thing sure is exciting to stare at lol.
I got the right tubing (turns out the port holes are 1.25x2.5 each and I found tubing to match)
I think since the magnum heads don't have a solid partition between ports I'll sharpen the bit between em and run a single port to the paired cylinders

Re: Project Blown 305
 

Located a 478 too btw
Should be able to build that one when I have the opportunity to go get it

Re: Project Blown 305
 

Hope you get it! I had the chance to get one for cheap, but passed because it was pretty rusty. Parts are scarce to.

Re: Project Blown 305
 

Yeah, I'm going to use as much off the 305 as possible.

I'll keep y'all posted.


Side note, anyone have the horns and roof running lights off a big gmc truck? Like a 4000 series?

Re: Project Blown 305
 

Looks as though the bell housing pattern on this is the same as the big 6s so I really just need to adapt the 8 bolt flywheel to fit under this or see about a custom one since this bellhousing fits my truck.
I'll just order an RXT clutch from McLeod to insure it handles the torque.

Sadly my crank pulley and timing plate are bent so I need to look into sourcing those.

If I flip the pulley it should work perfect in adding extra clearance for the blower belt as keeping it close to the motor is ideal.

Now if I cut off all the water pump stuff and run an electric pump, would you guys happen to know of a powerful pump?
This would also shave some weight too.

Re: Project Blown 305
 

If you're going to use the 305E bellhousing you'll definitely need the right 8 bolt flywheel for the 478. There were early 8 bolt flywheels used on 62-65 6500 series trucks that were the correct diameter and if you got a hold of one of these it would require machining an adapter to accept the smaller light duty pilot bearing because the hole in the center is much larger. The other alternative is a 379 flywheel if you can find one which is a straight bolt in. Myself I went with a custom flywheel from Tilton Engineering and of course it was balanced with the whole rotating assembly of the 478M, a good amount of weight was added to the flywheel. Another issue I need to bring up is Tilton never machined the flywheel surface facing the engine block to clear the four bolts that bolt the bellhousing to the engine block, that machined relief area is very evident on a 305E flywheel. I ended up grinding down the heads of the 4 bolts to achieve the right clearance:ok: Here's a pic of my custom 478 flywheel:upyes:

Re: Project Blown 305
 

Ah, well I may just do the custom route.
So I wanted to consider the NV4500 in this which requires an adapter so I may have to space out the flywheel anyways.

I'll def have some balancing to do because I think I'm gonna just shoot for a custom offset ground crank and different rods/Pistons. Knowing JE will make a custom 5.125" piston makes me more interested in that than to retain the weight of the giant 4 ring cast factory ones and I can jump to 8.5-1 compression ratio.

Re: Project Blown 305
 

Don't think you'll need to space out the flywheel, NV-4500 conversions have been done before on these engines. Go to Jolly's 6066GMCguy.org site, there is an NV-4500 conversion in there. Some custom pistons with 3 rings, Chrysler 426 Hemi type rods with a turned down and stroked crankshaft will result in a 500 plus cubic inch screaming V6:upyes:

Re: Project Blown 305
 

Yeah, I considered that from
The other build but there might be more available in a sbc rod journal (2.0") to pick up 1.6" stroke over the 478 stroke for I think roughly a 678