CordobaDart
318 SLANTMAN
Came from a mid 60's 6 wheel drive backhoe. The owner got a running poly for it from a salvage yard. I was asked if I wanted it, so I thought, why not? I was curious to see how these were put together.
Crusty free poly 318 and where it came from.
- Thread starter CordobaDart
- Start date
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CordobaDart
318 SLANTMAN
Some pictures of the crust, and a mouse nest.
chryslerfat
Well-Known Member
Wow the mice had fun inside that one.
Interesting...
CordobaDart
318 SLANTMAN
Picture Picture of the decal and replacemen poly in the backhoe.
Awesome score, free is my favorite acquisition$ !! You could send that to MCG to
put in an upcoming issue, esp. if you can get more background on when and how
long those were produced etc. .
So what are your plans for this crusty poly-jewel ?
put in an upcoming issue, esp. if you can get more background on when and how
long those were produced etc. .
So what are your plans for this crusty poly-jewel ?
Did you find any sign of why the poly stopped running before the mouse invasion?
Being an industrial engine, I bet you dollars to doughnuts that is what's referred to as an extended service block. In other words, it can be bored over a good bit. I bet it will go 4" without looking back. Plus, the 4" small block stroker crank is a direct drop in. Instant 402" Poly.
bobscuda67
Well-Known Member
Poly's are cool!
threewood
Well-Known Member
Free is always good and I do love the 318A motor. Those bores look...sporty lol. I bet it can still be bored out quite a bit depending on where it is at right now as RRR said. Tear it apart, send it out to be tanked and see how it looks. I could not have a free engine in my garage, it would magically drain my bank account and end up rebuilt and then I would have to find a car to put it in lol.
diymirage
HP@idle > hondaHP@redline
sure are, right below the firedome and flathead motors as for as cool factor goes
TylerW
Well-Known Member
Looks like it was in a flood.
CordobaDart
318 SLANTMAN
A 4" bore and stroke poly sounds freakin cool! I better not think too far into it right now as too not spend all that green, would like to pay off the house first ha. I was thinking the only engines that I would consider swapping into my 83 W150 slant 4 speed would be an early hemi or a poly to match or exceed the cool factor of the slant at roll-ins. Been soaking the poly in penetrating oil every other day and only have one rod cap left to remove, still stuck, and the cam and lifters still don't want to move much. Most every thing elso is off though.
CordobaDart
318 SLANTMAN
Getting less crusty and more penetration! That sounds bad I know.
CordobaDart
318 SLANTMAN
Every thing looks to have been in place, the bearings were scored a bit, and the front main bearing looked to be starting to rotate. The connecting rods are in one piece. The owner of the backhoe bought this from a guy because it is just like the one his father used to use in their family buisiness-dirtwork, tiling, tree removal, etc. in the past. Said to have sat in the same spot for at least 20 years before he got it. I am guessing water got into it while sitting, not sure if there was a carb on it over that time.
mguner
How many is too many?
That block will also accept any small block head if cammed for it....
CordobaDart
318 SLANTMAN
Finally got the crank and pistons out used two cans of penetrating oil to get this far. I found out my first failure point. Cylinder #1 has a bent connecting rod.
CordobaDart
318 SLANTMAN
I need to find a way to get the stuck cam out of it.
CordobaDart
318 SLANTMAN
Bent connecting rod so maybe coolant leak into cylinder? Head gaskets look to have been replaced before.
Yup. Hydrolock. Almost guaranteed. But that's a good thing. Probably means not much else is hurt.
dano
Evil Handy Man
So whats your plans with it?
Oh and one more thAng. Those valve covers are RARE. You really need to keep them in as good a shape as you can.
j par
Well-hung Member
You could use a newer snowmobile ? That thing looks like it's had it's day ! 
CordobaDart
318 SLANTMAN
You could use a newer snowmobile ? That thing looks like it's had it's day !
I put over 250 miles on that old 1983 Polaris Indy 440 since I bought it for $150 in January. Rebiult the carbs, cleaned out the tank, ran new fuel/oil lines, cleaned the mouse nest out of the fan cooling shroud, and put a windshield on it. I have a habit of making old stuff work it seems. -
