1966 torsion bars Help

[rickster1959]

Hi,Everyone new to this Site Need some Info. I recently bought a 66 coronet 440 with 318 poly motor. I plan on keeping stock motor. The problem is when I bought car it was missing torsion bars. My question, is a 318 poly considered a big block or small block? I know it is wider than later model 318's. Should I get big block torsion bars or Small Block. Any help will be Appreciated Thanks.

 

[Funship32]

Hi Rickster, welcome to the site!

So here is some info for you: The "A" engine (which is what you have) was Mopar's small block offering until 1966 in the U.S. and '67 in Canada. After that it was replaced the the "LA" series small block (273,318,340,360) which was about 55 lbs lighter.

From my understanding size wise, the blocks of the "A" and "LA" engines were similar in width but the difference is in the heads- the poly design makes them look bigger.

Hope that helps.

 

[Cranky]

Actually, the poly engine was installed in 66 cars in the states....and yes, it's a small block. Does your car have AC, PS etc too? I have a pair that came out of a 67 Coronet that I'm not going to use. The car came with a 318, AC, PS, auto. The car only had 57k miles on it when it was parked.

 

[rickster1959]

Hey Cranky,My 66 has PS Auto no AC. Let me know on the torsion bars you have maybe we can work out a deal. Thanks Rick

 

[1965belvedere2]

I am no expert on torsion bars, but I worked on my own several times and I know a bit of engineering and the dynamics of a torsion bar.
The bar is under a load to offset the front end weight. If the front end weight is increased then the load on the bar must be increased. The way to increase the load is to tighten the torsion bar adjustment bolt.
If the front end weight is more than what the torsion bar can take, then a larger diameter bar must be used.
Did our cars use more that 1 size bar?

 

[A383Wing]

yes, there was more than 1 bar offered. If you put a bigger bar in, it may not adjust level & sit too high. Also, there are left & right side bars...don't put bars in wrong side.

Bryan

 

[66blvee]

66 torsion bar

A 66 Satellite with a v8 would use 776/777 bars for standard suspension, 778/779 with heavy duty suspension without swaybar or 780/781 with heavy duty suspension and sway bar. my 66 Satellite with a poly 318 and A/C had the 776/777 bars in it. If you have the build sheet that makes it easy.
'71-and-earlier Torsion Bar Identification Chart
Right Hex Preset
Part Chart or Color Length Dia. Across Angle
Number Number Left Code (in.) (in.) Flats (deg.)
1857774 1857771 Right Orange 41.0 0.860 1.25 30°
775 1857771 Left Orange 41.0 0.860 1.25 30°
776 1857771 Right Green 41.0 0.880 1.25 30°
777 1857771 Left Green 41.0 0.880 1.25 30°
778 1857771 Right Aluminum 41.0 0.900 1.25 30°
779 1857771 Left Aluminum 41.0 0.900 1.25 30°
780 1857771 Right Brown 41.0 0.920 1.25 30°
781 1857771 Left Brown 41.0 0.920 1.25 30°
2269574 2269571 Right Orange 44.0 0.940 1.41 40°
575 2269571 Left Orange 44.0 0.940 1.41 40°
578 2269571 Right Brown 44.0 0.960 1.41 40°
579 2269571 Left Brown 44.0 0.960 1.41 40°
2269618 2269611 Right Yellow 47.0 0.940 1.41 44°
619 2269611 Left Yellow 47.0 0.940 1.41 44°
620 2269611 Right Aluminum 47.0 0.960 1.41 44°
621 2269611 Left Aluminum 47.0 0.960 1.41 44°
622 2269611 Right Olive 47.0 0.980 1.41 44°
623 2269611 Left Olive 47.0 0.980 1.41 44°
2535512 2535501 Right Brown 50.0 1.020 1.41 44°
513 2535501 Left Brown 50.0 1.020 1.41 44°
516 2535501 Right Blue 50.0 1.060 1.41 42°
517 2535501 Left Blue 50.0 1.060 1.41 42°
2535888 2535887 Right Yellow 35.8 0.830 1.25 30°
889 2535501 Left Yellow 35.8 0.830 1.25 30°
890 2535501 Right Olive 35.8 0.850 1.25 30°
891 2535501 Left Olive 35.8 0.850 1.25 30°
892 2535501 Right Blue 35.8 0.870 1.25 30°

Read more: http://www.moparmusclemagazine.com/...tion_and_detailing/viewall.html#ixzz2YbmC7R2T