poly 318 to la 318

mikestroble · Post by **mikestroble** » Mon Dec 05, 2005 10:36 am

is this an easy swap? I have a 64 3/4 ton 4x4 with a 4spd. I have lots of la engines. Just think it might be cheaper.

dodgegrrrrrrl · Post by **dodgegrrrrrrl** » Mon Dec 05, 2005 11:04 am

it is a very easy swap. The only things you have to change are the flywheel (must be an LA flywheel. I have one for ya $75 plus shipping if you need it) and the water pump from the "A" will have to be moved over to the LA to put the bottom radiator hose on the right side. You will also need to move your exhaust pipes as the outlets are located differently on the "A" than on the "LA".

dodgetkboy78 · Post by **dodgetkboy78** » Mon Dec 05, 2005 12:32 pm

What she said!

Post by **Hobcobble** » Mon Dec 05, 2005 1:54 pm

That Poly flywheel will work on the LA engine. Also,
a '68 or older Swept flywheel will do the trick. I
have a '66 [Poly] flywheel on my '68 W200 with a '71
LA318 in it. You can't use the '69 or later flywheel
on a hydraulic clutch truck though

John
PS.... if you re-do the clutch/pressure plate, etc.,
go to hrclutch.com for parts.... they know exactly
what you're after.... NO HASSLES...

Jeffc · Post by **Jeffc** » Mon Dec 05, 2005 5:12 pm

John is right, only exception is the 360 LA engine, it needs its own flywheel.
But the poly fly will bolt right up to any LA318

mikestroble · Post by **mikestroble** » Mon Dec 05, 2005 8:53 pm

oh yeah, the good news. I have a 70 dodge p/u with the 318 in it. Looks like i got all i need. Thank you very much.

Post by **Hobcobble** » Tue Dec 06, 2005 8:21 am

Remember Mike.... you can't use the '70 flywheel with
the hydraulic clutch set up

.... stick with
the one off of your Poly and you'll be fine. You might
want to get it re-surfaced as long as everything is
all apart.
John

mikestroble · Post by **mikestroble** » Tue Dec 06, 2005 10:05 am

one rumor i heard is that if i use the poly flywheel with an la engine the starter wont engage and are the bolt holes the same on the crank-flywheel? Thank you.

mikestroble · Post by **mikestroble** » Tue Dec 06, 2005 10:13 am

oh yeah, it would be a poly flywheel, going on a 1970 318 if that helps. Thank you.

Post by **Hobcobble** » Tue Dec 06, 2005 11:24 am

Mike,
The crank bolts are the same. You'll have to use the
old direct drive [Poly] starter.
John

dodgetkboy78 · Post by **dodgetkboy78** » Tue Dec 06, 2005 11:45 am

Isn't the depth of the starters the same?

I thought so, at least....................

mikestroble · Post by **mikestroble** » Tue Dec 06, 2005 8:33 pm

THANK YOU VERY MUCH. Have a good christmas all.

bteam_hoss · Post by **bteam_hoss** » Thu Dec 29, 2005 11:56 am

what about motor mounts?

Post by **Hobcobble** » Thu Dec 29, 2005 1:12 pm

They're the same

John

bteam_hoss · Post by **bteam_hoss** » Thu Dec 29, 2005 2:41 pm

i just blew a head gasket on my poly 318. now im thinking of swapping it for an la 318 instead of spending money on the poly. waht do you guys think?

Sweptline.ORG

poly 318 to la 318

poly 318 to la 318

thanks!

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