I keep reading and hearing about folks who have a "318 polly", or a "318 LA", and even a 318 Magnum.
What are the differences? I'm not sure I can tell what 318 I have.
What Is It About These 318 Engines?
What Is It About These 318 Engines?
1971 Dodge W100
-
dodgeboykim
- Sweptline.ORG Pioneer
- Posts: 3016
- Joined: Wed Dec 31, 1969 6:00 pm
- City: Chilliwack. B.C. Canada
- State: Foreign
- Location: chilliwack.
Re: What Is It About These 318 Engines?
A series Poly. https://www.allpar.com/mopar/a-engines.html
Magnum 273 318 340 360 5.2 5.9. https://www.google.ca/url?sa=t&rct=j&q= ... vbumKswszc
Magnum 273 318 340 360 5.2 5.9. https://www.google.ca/url?sa=t&rct=j&q= ... vbumKswszc
My truck is younger than me.
66 W100. 70 D 500 , 69 Hiab Speed Loader. 96 Ram 3500 Club Cab Cummin's 5 spd. 97 Ram 1500 Club Cab 5.9 gas auto. 83 W200 LB Propane 360 auto 09 Yammy Rhino 700.
66 W100. 70 D 500 , 69 Hiab Speed Loader. 96 Ram 3500 Club Cab Cummin's 5 spd. 97 Ram 1500 Club Cab 5.9 gas auto. 83 W200 LB Propane 360 auto 09 Yammy Rhino 700.
-
Wildergarten
- Sweptline.ORG Pioneer
- Posts: 1768
- Joined: Wed Mar 21, 2018 5:27 pm
- City: Los Gatos
- State: CA
- Contact:
Re: What Is It About These 318 Engines?
I'm a sucker for Uncle Tony's explanations of such things.
He calls the 318 poly the engine Chrysler should have developed: https://www.youtube.com/watch?v=YU0Eo2f0vKg
He calls the 318 poly the engine Chrysler should have developed: https://www.youtube.com/watch?v=YU0Eo2f0vKg
'69 W200 (thumbnail)
'68 W200 (RIP)
'68 W200 383 NP435 3.53
'67 W200 383 NP435 4.10 w overload springs, Dana 60, PTO winch & flatbed dump, racks, crane, c-air (Max)
Mark Vande Pol
Wildergarten.org
'68 W200 (RIP)
'68 W200 383 NP435 3.53
'67 W200 383 NP435 4.10 w overload springs, Dana 60, PTO winch & flatbed dump, racks, crane, c-air (Max)
Mark Vande Pol
Wildergarten.org
Re: What Is It About These 318 Engines?
Well I guess, from the article and video, I got an LA 318? I know my push rods are not that "slanted", though I'm forgetting what side the valve springs are on when I changed out the valve cover gaskets. My documentation, study, and note taking has probably improved since then. I'll have to keep up on the differences to gain more.
I caught on to UTG just before his 100th video. There is a lot I missed too. He did comment on my W100 though! For me, he has a lot to offer, like this forum.
Thank you for the information, good stuff!
I caught on to UTG just before his 100th video. There is a lot I missed too. He did comment on my W100 though! For me, he has a lot to offer, like this forum.
Thank you for the information, good stuff!
1971 Dodge W100
-
PwrWgnDrvr
- Sweptline.ORG Pioneer
- Posts: 7362
- Joined: Wed Dec 31, 1969 6:00 pm
- Location: Walnut Creek, CA
Re: What Is It About These 318 Engines?
There are several ways to easily tell whether its an LA or poly 318. Here are a few.
Exhaust port configuration on the head:
0-0-0-0 is a poly
0-00-0 is an LA
Valve stems all in a row is an LA
Valve stems on opposite sides of the rocker arm shaft is a poly.
2 bolts on the top of the valve cover is a poly (one near each end)
Several bolts around the edge of the valve cover is an LA
Lower edge of the valve cover scalloped is a poly.
Lower edge straight is an LA
Exhaust port configuration on the head:
0-0-0-0 is a poly
0-00-0 is an LA
Valve stems all in a row is an LA
Valve stems on opposite sides of the rocker arm shaft is a poly.
2 bolts on the top of the valve cover is a poly (one near each end)
Several bolts around the edge of the valve cover is an LA
Lower edge of the valve cover scalloped is a poly.
Lower edge straight is an LA