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Harmonic Dampers We list aftermarket (new) dampers first. Scroll down for stock and used dampers including a list of applications, and damper accessories. ALL aftermarket (new) dampers use the factory pulley spacing (for no belt alignment issues.) Don't forget a high strength bolt to hold on your new Damper! |
| Our fluid dampers are very similar in design to the type sold by Fluidampr.
They have an
internal ring surrounded by a thin film of high viscosity silicone fluid,
which allows the ring to rotate freely within the housing on nylon
positioning guides. This allows the outer shell to "spin up" faster then
the ring as the engine accelerates, which increases horsepower by reducing
the amount of weight the engine has to move by over 33% compared a standard elastomer
type balancer. Also, the housing is a one piece laser welded design, so
there is never any danger of the ring coming loose or timing marks slipping.
These include printed timing marks to 50 degrees, and a symmetrical pulley
bolt pattern. We have designed these dampers based on detailed factory
specifications, to be sure there will be no problems with fit or finish.
These are NOT the same as the imported garbage many other vendors are
selling. These are AWESOME quality. Take a look at the picture and judge for
yourself. The chrome is so highly polished, you can see the reflection of
our ceiling in the damper if you look closely.
440 Source is an official SFI approved participating manufacturer. The SFI foundation performs destructive testing on sample fluid dampers to ensure that the steel and methods of construction used meets their stringent requirements. This means they spin the sample dampers up to 12,500 RPM for over an hour, then they literally rip the metal apart while measuring how much force it takes for it to bend, stretch and finally break. SFI's minimum specifications to certify a damper to pass their 18.1 testing includes a yield strength of 40,000 pounds, a tensile strength of 60,000 pounds, and a maximum 10 percent elongation. Our fluid dampers not only passed the testing, but far exceeded SFI's minimum specs. Our yield strength was 52,000 pounds (over 30% stronger than required). Our tensile strength was an amazing 97,000 pounds (over 60% stronger than required) and our elongation was 25% (2.5 times the required minimum!) Not only do you get this kind of GUARANTEED quality, but you get it at a fraction of the cost of the name brand units. Part No: 200-1023 - SFI Fluid damper - Chrome - New. Price: $134.95 |
| Shown above is our
new high strength steel Damper. These use the offset (pre
72) pulley bolt pattern. They are supplied in a chrome finish for good looks
and corrosion protection. This damper is the perfect
choice for those who want a damper that looks similar and interchanges with
a factory unit, but with all the
design features you'd expect from a modern performance unit. First we start
with 1045 steel, (a far stronger steel than the cast iron the factory used,
or even the nodular iron that some cheaper aftermarket dampers use.) Then,
these dampers are fully dynamically balanced at the factory. But, we don't stop there. Even though these dampers are 100% dimensionally identical to a factory unit on the outside, there are some key differences in the manufacturing process. The number one problem with 40 year old stock dampers is that the rubber which bonds the inner hub to the outer ring is exposed on the backside of the damper. This allows it to deteriorate when exposed to ozone, engine oil/grease, etc. This can allow the outer ring to slip, causing inaccurate timing marks, a munched up timing cover, or worse the ring can come loose at high RPM and turn into a bullet. To remedy this problem, we have designed these dampers in such a way that the rubber is completely sealed inside the housing of the damper. Below, you can see a picture of the back of our damper (on the left and above) compared to a factory damper (on the right.) Notice the condition of the rubber on the factory damper.
Also, notice the quality of the machining on the damper snout and seal surface verses the stock unit. There's no comparison. This damper includes 40 years of manufacturing technology, all the features of a high dollar modern race unit, and best of all... We've made them incredibly affordable. Part No: 200-1083 - High Strength Steel Damper - Chrome plated - New. Price: $129.95 |
| We've taken the factory original and
hard to find damper bolt and made it even better by reproducing it in a high
strength Grade 8 material (along with the unique heavy washer) Use these
with ALL of our aftermarket SFI Dampers, as well as all factory big block
dampers (except for 426 Hemi and Industrial applications.) This is the 1.25"
(short) bolt. Includes bolt and washer. Chrysler originally sold these as
part #1731525 for the bolt and 1855561 for the washer.
Part No: 109-1503 - Bolt/washer - Damper to crankshaft - Short - Grade 8. Price: $9.95 |
| This super cool damper bolt has a
1/2" drive socket built into it, which makes it super easy to turn over your
engine by hand with a breaker bar or ratchet. Very nice for degreeing cams
or adjusting valves. It's 190,000 PSI steel, American made by ARP and also
includes the fully machined special washer. Both are finished in black
oxide. These work with ALL of our aftermarket SFI Dampers, as well as all
factory big block dampers (except for 426 Hemi and some Industrial
applications.)
Part No: 129-1001 - ARP Damper bolt - Socket Drive head. Price: $24.95 |
|
Stock Damperss Over the approximately two decades that "B" engines were in production, a total of 17 different balancers (or at least part numbers for balancers) were used. Use the table at the bottom of this page to give a year by year breakdown of what balancer every engine used. One important note is that starting in 1972, the bolt pattern on the front of the damper was changed to be exactly symmetrical. (Damper 1858382 is the only exception to this rule) Before this (71 and earlier) there is one bolt that is offset slightly, forcing the pulley to be installed only one way. (In case you are curious, the bolt is the second hole away from the woodruff key in the counterclockwise direction - it should be right in line with the timing mark.) So, because of this any pre 72 pulleys/dampers are not interchangeable with post 72 models. Be careful of this when buying balancers at swap meets - bring your pulley with you or verify the casting number. Speaking of casting numbers, I have found that probably 80% of dampers do not have any identifying numbers on them. The only way to find out what they are for is to try and work backwards. For instance, is it for a cast or forged crank? A cast crank damper will have an elliptical offset weight in one side, while a forged crank damper will be perfectly round. Second, check the bolt pattern for the offset hole... this will narrow it down to half of the list. We have tried to list pictures of every common damper further down this page, in addition to new ones. All dampers can be rebuilt to like new condition. Please inquire. Don't forget to scroll all the way down to the bottom of the page for attaching bolts and our application table as well. |
| This first damper
is an early forged crank internal balance type, measuring 7 1/4" diameter by
about 7/8" wide, with the offset (pre 72) pulley bolt pattern . Most of
these types of dampers will be Chrysler # 2275897 or 2658457. These were
available with either the solid ring (above left picture) or the cut
ring (above right picture), and the holes in the hub may be either round or square. The difference appears to be based on the supplier Chrysler
happened to use, as we have seen both types used for the same year, part #,
etc. The cut ring type seems to be more commonly used. These were used from about 1962 until 71 with all forged crank engines.
In 72, the bolt pattern was changed to be symmetrical and therefore a
different part and associated part # were used (see below.) These usually do not have part numbers cast into them
(although sometimes 2658457's will be marked on the rear inside of the hub.) Check for the offset bolt in the pulley bolt pattern to be sure. Part No: 100-1045 - Damper - Forged crank - Offset pulley - Solid - Used. Price: $74.95 Part No: 100-1046 - Damper - Forged crank - Offset pulley - W/Cut - Used. Price: $74.95 |
| Next is damper 3614371, used
on forged crank engines from 1972-75. Appearance and dimensions are the same
as above, the only difference is the pulley bolt pattern in the 72 and
later, which is symmetrical. These will usually have the casting number on
the rear of the hub. We have only seen these with the cut ring. These
continued to be used as part 3830183 for 1976-79. Part No: 100-1055 - Damper - Forged crank - Symmetrical pulley - Used. Price: $74.95 |
| Shown above is damper
#3512017, commonly known as a "six-pack" damper. This damper can be easily
identified by a small .210" thousandths thick elliptical weight attached to the center hub. This
version was used in '70 and '71 and has the offset pulley bolt pattern. Be
careful not to confuse it with 3614372, which was used only in '72 and looks
similar except for having a symmetrical pulley bolt pattern. The weight on
the 3614372 may be slightly thicker at .255", but we have not been able to
verify this.
Even though these dampers have an elliptical weight, they were never used with any cast cranks. These dampers were used with steel cranks and "six pack" (2951908 casting #) rods. The extra weight is to offset the added weight of the extra metal in the rods and pistons. Another important fact is that even though six pack rods continued to be used up until 1975 in HP and truck 440's with steel cranks, they did NOT use this damper. As you can see from the chart above, any 73-75 steel crank 440 (with either six pack or standard rods) would have come with the 3614371 damper. We have found this to be absolutely true. Part No: 100-1051 - Damper - "Six pack" offset pulley - Used. Price: SHOWN FOR INFORMATIONAL PURPOSES ONLY, NOT AVAILABLE FOR SALE. |
| Shown above is damper #3614374, used
on 400's with external balance cast cranks, which can usually be found in a
passenger car and/or automatic trans application (applications with 400
engines and manual transmission applications used forged cranks.) It measures
7 1/4" diameter by about 7/8" wide. Although it is similar to the "six pack"
dampers above, the weight on these is much thicker, and more closely
resembles the weights on the cast crank 440 models below, even though the
ring thickness is similar to an internal balance damper. One easy way to
identify these (and not confuse them with six pack models) is the small half
circle that is cut into one side of the counterweight. This is visible in
the picture above at about the 3 o'clock position. This is the only damper
that will have this small cut.
Part No: 100-1050 - Damper - Cast crank 400 - Used. Price: $74.95 |
| Shown above is damper #3577785, used
on 440's with cast cranks from 73-75. It measures 7 1/4 diameter by 1 5/8
wide. It is an externally balanced model, (notice the approx. .275"
thousands thick counterweight
which contains the words "use with 440 cast crank only") Notice that the
outer surface of the damper is straight, which makes it easy to
differentiate from the later "bullet nose" cast crank damper (3830482)
pictured below.
Part No: 100-1047 - Damper - Early cast crank 440 - Used. Price: SHOWN FOR INFORMATIONAL PURPOSES ONLY, NOT AVAILABLE FOR SALE. |
| Shown above is damper #3830482, which
is an externally balanced type, used on cast crank 440's from 1976
until the end of production. It measures 7 1/4" diameter by 1 5/8" wide.
The counterweight on this damper measures about .300" thousandths thick. This damper is unique in that the outside edge is not straight, but rather
tapers down at the front. This lead to it being known as a "bullet nose"
type. It is also unique in that it is the only damper that has timing marks
machined at every 90 degrees. Note however only the main timing mark
continues to the rear of the damper, the rest stop where the taper begins,
or about 1/2" from the rear. Part No: 100-1048 - Damper - Late cast crank 440 - Used. Price: SHOWN FOR INFORMATIONAL PURPOSES ONLY, NOT AVAILABLE FOR SALE. |
| Shown above is damper #2658871, used on street Hemi engines 1966 to 1971. It measures 7 1/4" diameter by about 1 5/8" wide, using the symmetrical pulley bolt pattern.. This damper has several similarities to other dampers listed. From the side view, it looks very similar to the early cast crank damper, however it is an internal balance unit, so there are no counterweights. It also has a pulley mounting face with a unique pulley spacing similar to the Heavy Duty truck damper listed below. These are unique to 426 Hemi Engines, so they are very hard to find. We have listed them for educational purposes only. We do not offer them for sale, however we have occasionally seen them at swap meets selling in the $300-$500 range. If you need something similar for a lot less money, try our Heavy Duty truck damper below, which is nearly identical in width and pulley spacing, except it is 1 inch smaller diameter. These use the long damper bolt (our part number 100-1504.) |
| Shown above is damper #1858382, used
on heavy duty (HD) trucks and motorhomes with internally balanced forged
cranks. It measures 6 1/4" diameter by 1 5/8" wide. These first came into
use in 1960, when the heavy duty/industrial versions of the 361 and 413
replaced the early hemis (354/392, etc) in Dodge's medium and heavy duty
lines of trucks. They continued to be used unchanged until Dodge
discontinued their medium and heavy duty truck lines in 1977. All of the
these balancers have the standard offset pulley bolt pattern. The hub used
on these units spaces the pulley out further from the engine, so if one of
these were to be used in a standard car-type setup, it would require a
custom pulley arrangement. Also, note the lack of a hub which overlaps the
outer ring, acting as a safety to keep the ring from flying off. Also, these
are always used with timing cover #1858639 (our part number 100-1063) These
use the long damper bolt (our part number 100-1504.) Part No: 100-1049 - Damper - HD Truck 361/413 - Used. Price: $99.95 |
|
Damper Accessories: |
| Shown above is our crank pulley shim.
These are available in both .055" (about 1/16th of an inch) and .125" (about
1/8th of an inch) thicknesses to allow for exact belt alignment when
using dampers/pulleys/waterpumps, etc that don't all line up perfectly. They
use a dual pattern bolt circle to match up with any factory or aftermarket dampers
& pulleys. For applications that require more spacing, instead of stacking a
bunch of these together, use our one-piece spacer listed below. Part No: 127-1004 - Crank Pulley Shim - .055" Thickness - Price: $7.95 Part No: 127-1005 - Crank Pulley Shim - .125" Thickness - Price: $9.95 |
All website content copyright 440 Source.
(661)951-3700
| 440 | 426 | 413 | 400 | 383 | 361 | 350 | |
| 1979 | 3830183(forged truck) 3830482(truck only) | N/A | N/A |
3830183(forged HD truck) 3830184(truck only) |
N/A | N/A | N/A |
| 1978 | 3830183(forged truck) 3830482(cast) |
N/A | N/A |
3830183(forged truck) 3830184(cast) |
N/A | N/A | N/A |
| 1977 | 3830183(forged truck) 3830482(cast) |
N/A | 1858382(HD truck) |
3830183(forged truck) 3830184(cast) |
N/A | 1858382(HD truck) | N/A |
| 1976 | 3830183(forged truck) 3830482(cast) |
N/A | 1858382(HD truck) |
3830183(forged truck) 3830184(cast) |
N/A | 1858382(HD truck) | N/A |
| 1975 | 3577785(cast) 3614371(forged) |
N/A | 1858382(HD truck) | 3614374(cast car) 3830183(forged truck) 3830184(cast truck) |
N/A | 1858382(HD truck) | N/A |
| 1974 | 3577785(cast) 3614371(forged) |
N/A | 1858382(HD truck) |
3614374(cast) 3614371(forged) |
N/A | 1858382(HD truck) | N/A |
| 1973 | 3577785(cast) 3614371(forged) |
N/A | 1858382(HD truck) |
3614374(cast) 3614371(forged) |
N/A | 1858382(HD truck) | N/A |
| 1972 | 3614372(w/HP) 3614371(nonHP) |
N/A | 1858382(HD truck) |
3614374(cast) 3614371(forged) |
N/A | 1858382(HD truck) | N/A |
| 1971 | 3512017(w/HP) 2658457(nonHP) |
2658871(Street Hemi) | 1858382(HD truck) | N/A |
3577180(cast) 2658457(forged) |
1858382(HD truck) | N/A |
| 1970 | 3512017(w/HP) 2658457(nonHP) |
2658871(Street Hemi) | 1858382(HD truck) | N/A |
3577180(cast) 2658457(forged) |
1858382(HD truck) | N/A |
| 1969 | 2658457 | 2658871(Street Hemi) | 1858382(HD truck) | N/A | 2658457 | 1858382(HD truck) | N/A |
| 1968 | 2658457 | 2658871(Street Hemi) | 1858382(HD truck) | N/A | 2658457 | 1858382(HD truck) | N/A |
| 1967 | 2658457 | 2658871(Street Hemi) | 1858382(HD truck) | N/A | 2658457 | 1858382(HD truck) | N/A |
| 1966 | 2658457 | 2658871(Street Hemi) | 1858382(HD truck) | N/A | 2658457 |
1858382(HD truck) 2658457 |
N/A |
| 1965 | N/A | 2532795(race hemi) 2275897(wedge) |
1858382(HD truck) 2275897 |
N/A | 2275897 |
1858382(HD truck) 2275897 |
N/A |
| 1964 | N/A | 2268905(race hemi) 2275897(wedge) |
1858382(HD truck) 2275897 |
N/A | 2275897 |
1858382(HD truck) 2275897 |
N/A |
| 1963 | N/A | 2275897(wedge) |
1858382(HD truck) 2275897 |
N/A | 2275897 |
1858382(HD truck) 2275897 |
N/A |
| 1962 | N/A | N/A |
1858382(HD truck) 2275897 |
N/A | 2275897 |
1858382(HD truck) 2275897 |
N/A |
| 1961 | N/A | N/A |
1858382(HD truck) 1947897 |
N/A | 1947897 |
1858382(HD truck) 1947897 |
N/A |
| 1960 | N/A | N/A |
1858382(HD truck) 1947897 |
N/A | 1947897 |
1858382(HD truck) 1947897 |
N/A |
| 1959 | N/A | N/A | 1859359 | N/A | 1859359 | 1859359 | N/A |
| 1958 | N/A | N/A | N/A | N/A | N/A | 1737657 | 1737657 |
| Numerical listing: | Type | Casting # | Our Part # |
| 1737657 | 58 only | ||
| 1858382 | HD Truck | 1858382 (some) | 100-1049 |
| 1859359 | 59 only | ||
| 1947897 | 60-61 std forged | ||
| 2268905 | 64 race hemi | Good luck! | |
| 2275897 | 62-65 std forged | 100-1045 100-1046 |
|
| 2532795 | 65 race hemi | Good luck! | |
| 2658457 | 66-71 std forged | 2658457 (some) | 100-1045 100-1046 |
| 2658871 | 66-71 street hemi | ||
| 3512017 | 70-71 HP (six pack) | 100-1051 | |
| 3577180 | 70-71 383 cast | ||
| 3577785 | 73-75 440 cast | 100-1047 | |
| 3614371 | 72-75 std forged | 3614371 | 100-1055 |
| 3614372 | 72 HP (six pack) | ||
| 3614374 | 72-75 400 cast | ||
| 3830183 | 75-end std forged | 100-1055 | |
| 3830184 | 75-end 400 cast | ||
| 3830482 | 76-end 440 cast | 4095087 (some) | 100-1048 |
All website content copyright 440 Source
(661) 951-3700
