there is. i didnt know for the longest time. kept getting diferent brands of 225 mounts hoping to get something like i had in there when i got the car and couldnt figure out why they were so much smaller. then one day i remembered it was a 170 car and looked it up for that motor and it turned out to be exactly what i was looking for. if you go to rock auto and look up a 1966 valiant with the 170 and find the motor mounts look at the pics and reference it to the 225 mounts. they are worlds apart.

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1966 Plymouth Valiant, 225, 3 on the tree, 8 1/4 3.21 sure grip, hyperpac, holley 650dp, holset h1c

The rock auto catalog is wrong, as is most other catalogs. I went through this years ago. If you look the listing for a 66 Valiant with 225 is for mount numbers 2265 and 2264, and the 170 is for numbers 2303 and 2304.
If you look at 1967 valiant the mount numbers are 2265 and 2264 this is correct. The mounts changed between 66 and 67.
Now look up the numbers for a 66 Dart, it lists the same number for a 225 and a 170, numbers 2303 and 2304.
In short the numbers 2265 and 2264 are incorrect for a 66 Valiant, they are for a 67 Valiant.
The reason you had a problem, was everyone was giving you a mount for a 67 car, which will not work.

The factory parts manual does not show a difference between a 170 and a 225 mount, within the same year, "A" body.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

gotcha, thank you for the clarification. i aways assumed they were just different mounts.

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1966 Plymouth Valiant, 225, 3 on the tree, 8 1/4 3.21 sure grip, hyperpac, holley 650dp, holset h1c

No problem. Like I said, I went through this years ago, an tore my hair out trying to get the right mounts.
PS: nobody will correct their catalogs. I gave up trying.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

I used 2303 & 2304 on my 64 225 Valiant


When I got them, that was the number cross-referenced (I'm pretty sure at rock auto too)


Now Rock Auto shows the 2264 & 2265 for a 64 225

and 2303 & 2304 for a 170


The 2304 @ 2303 did look like my original mounts.


What's the difference?

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Rick, I have only one thing to say,,,,,, I HATE YOU !!

Not me. I love him so much, I am going to marry him. Then I will get the manifolds in the divorce.

PS: 2265 and 2264 mounts are for 67-72, in "A" bodies. Many more years in trucks.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

Thanks Romeo!! And no thanks Charlie!

Here are a couple pics. The exhaust manifolds actually look real nice even with the Clifford intake. New starter should arrive Tuesday and I will post a picture. I took a bunch of measurements from from different things to the manifolds if someone wants me to post them I could. Mini stater looks like it may have worked if the rear manifold would have came out about 1" farther then turned down. Manifold diameter is 1 7/8" opening.

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2 Mopars come with Spark plug tubes. One is a world class, racing machine. The other is a 426 CI. boat anchor!

12.70 @ 104.6

Those is bee-otchin'!

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obliquely-inclined state of mind

Witness Mr. Rick Covalt. A regular guy who won the Hyper Pak lotto. All he wanted was to race. Little does he know he has just entered a different world. A world filled with admiration, jealousy, hatred, and man marriage proposals. A world called the slant six twilight zone.

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66 Lil' Red Piggie Valiant (Mater Crusher) - Thanks Zilla!!!!! 72 Demon (Number 1 Son's)

Do those bolt bosses on the exhaust manifold line up with something on the hyperpak?

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Yes , Bolts go through the intake into the exhaust manifolds.

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2 Mopars come with Spark plug tubes. One is a world class, racing machine. The other is a 426 CI. boat anchor!

12.70 @ 104.6

Personally, I think those would look even better hangin' off the side of my open engine, in the front of my '23 T project, with the Offy 2x1 intake nestled in between the runners.
Go with a true dual exhaust, but weld the pipes side-by-side, with a rib down the center, and a brass "sight bead" out near the ends to make it look like the muzzle(s) of a double-barrel shotgun.
Just sayin'

Roger

Tighten up the lash or lean out the mix on a manual transmission and the locals will think it is either a machine gun or you really are shootin' ducks.

If there were a porn magazine for slant sixes, these would the centerfold.