Motor color

just wanted to find out what color the 318's were from the factory in 69 and 70
I'm was told they were blue and the 340's were orange..

i had a 69 A108 sportsman parts van the engine was red (318) not sure if it was the original engine or not.

Red was the color on 273 and 318 until 1970 I believe. After that blue.

ok... was just curious..because my 318 is blue but its a 70..
supposed to be the original motor but who knows ...

also.. i noticed a vibration when idling and when revving the motor.. didn't see a problem with the harmonic balancer.. could the pilot bearing cause this ...

get it up to temp then take the alternator belt off and run it again. takes the belt,alternator, fan blade and water pump out of the guessing.

thecruger wrote:ok... was just curious..because my 318 is blue but its a 70..
supposed to be the original motor but who knows ...
also.. i noticed a vibration when idling and when revving the motor.. didn't see a problem with the harmonic balancer.. could the pilot bearing cause this ...

Make sure, for sure, it IS a 318 (Rt side of the block should say 318 cast right into it at the end of the Casting #) or look at the ID# stamped on the block frt where it meets the bottom of the Lt head. A few people have run across this over the years where a previous owner opted for a 360 (first ones were in 1970 and blue too) to swap in.
Sometimes a mix and match project somewhere back in your A's lifetime goes awry and (if yours is an automatic) a trans rebuilder may swap out an older convertor for a newer or rebuilt one, but from a 360. This will throw the assembly out of balance too. 360's are externally balanced and when the original 318 flywheel & clutch or torque convertor is bolted on the whole assembly is out of balance.....
I had seen a 318 to 360 swap in a '69 Coronet Wagon fall to this scenario where the owner swapped in a 360 and found his original pulleys wouldn't line up (externally balanced 360 front dampner is thicker) so he threw all his 318 parts on. Holy cow....... Shake - Rattle AND Roll!
SB Mopar owners don't have all the historical mix and match options of our Small Block Chevy counterparts.
Terry

thecruger wrote:just wanted to find out what color the 318's were from the factory in 69 and 70
I'm was told they were blue and the 340's were orange..

In the transition from the Poly head 318 to the LA (66 to 67) they were Red.
'65 to 69 - 273's were red all their lives.
The original 318 in my 70 A-100 was red.
The forged crank 340's were orange.
Next engine color was Light Blue (318's, last of the 340's and first 360's).
Last LA color was Black.

NOW ya' wanna talk about correct Slant/6 colors?????
Silver, Yellow, Red, Black, Lt Blue, TURQUOISE ???? LOL

Terry

Yepper...the 318's in my '94 and '85 are black. I hate it.

I usually paint all my engines Mopar blue.

Yes, the pilot bearing could cause vibration. I'm not sure about A100's but other Mopars it's well documented and known that pre-'68 torque convertors have a smaller snout than post-68 crankshafts (I think '68 is the year)...so you have to insert a sleeve to make up the difference.

1.88" OD and 1.55" ID by 1/2" wide....I had to do this with my '65 Barracuda when I put in a later 318. I had bad vibration with a 273 that was in there and when removed found there to be no sleeve at all, so the torque converter had no way of centering itself in the back of the crank.

That is also true of the A's. Same drivetrains

Ok Terry,
I will take you up on that offer of the correct color for the slant 6 color for a 67' a100 pickup. I have been looking on and off for the last couple of weeks and seem to come up with yellow??

That’s the original color of my 66 A-100 slant 6 van. One day I’ll take it out and repaint it... (sigh)....a kid can dream....

well the latest update trying to figure out the motor..
the only numbers i could find were on the left side of the block
they were 4006830-360-10 ...
witch if i read it right..i have a mid to late 70's 360..
does that mean if they put the 318 fly wheel on its not balanced right..?

Is is an automatice or manual? Original transmission?

its a manual ..yes..the trans is original.. has the top hang trans mount..
i think only the a100's used that

4006830-360-10

76-80 to be exact.

A 318 flywheel will not have weights welded to it, but a 360 flywheel will.

1971 - 1979 360 car engine. some truck applications show a different casting number. vibration found. now its time to repair. you will destroy this engine without the proper flywheel. you need to check bearings in the engine now. rods and mains will be worn half on the top and half on the bottom at different ends of the block. they wear real funny. the engine in my truck now had the wrong torque converter on it and thats how mine were worn. it is salvagable but needs repair "now".
check bearings and "mike" the crank at rods journals in the 9 oclock and 12 oclock position to check for out of round. time to get dirty........good luck

The 273 in my Barracuda, the one I mentioned was missing the spacer in the end of the crank, wore right out. It had a bad vibration too and eventually I couldn't get the engine to run right. Changed the timing chain, distributor etc..finally just gave up and pulled it out, replacing it with a free 318 I got. That's when I found the missing spacer to adapt the smaller snout torque converter to the larger bore in the crank.

I'm no expert, but I'll hazard a guess that if your motor was missing the pilot bushing in the back of the crank, and some guy connected the manual trans to it without the bushing, it would have the same misalignment issues my 273 and auto torque converter had, right? Could be the issue, I don't know.

A new 360 shouldn't be that hard to find. All kinds of New Yorkers, Newports, etc. had them. My buddy bought a New Yorker with 24,000 miles for $500, put the 360 into his Valiant and sold the car for $250 to a guy for a demolition derby. Nice new like 360 for $250.

old part # for flywheel is : 3515497 sometimes this number is cast right into the part. mopar performance part # p4529110. this part is readily avalible and not out of line in price either. also saves from sending a used one out to be resurfaced that it will no doubt need.