Included with the adapter are four 5/16-18
bolts (with washers) to fasten the adapter to the intake
manifold, along with four 5/16-18 flange style nylon insert locknuts which are used
to secure the throttle body to the adapter.
Installation instructions are also provided.
The adapter is manufactured from quarter inch steel plate, to which
the steel studs are welded. The entire plate is powdercoated for looks and
corrosion resistance.
What is it used for?
This adapter allows you to mount a Dodge Truck TBI style throttle body onto an intake
manifold which has a standard Holley 4bbl flange.
The TBI style throttle body was used on the 3.9L V6, 318ci V8, and 360ci V8 found in various
Dodge trucks and vans during the late 1980s and early 1990s. These motors were a stepping
stone between the older carbureted engines and the multipoint fuel injected Magnum
engines, and thus are affectionately referred to by many enthusiasts as "premags" or
"premaggers". The last year for the 3.9L V6 and 318ci V8 premag engines was 1991;
the Magnum 3.9L V6 and 318ci (5.2L) V8 replaced them starting with the 1992 model
year. The 360ci V8 premag engine held out for one more year (1992), finally being
replaced by the 360ci (5.9L) V8 Magnum engine in 1993.
This adapter may be useful to you if you are looking to do any of the following:
Convert an older carbureted (LA style) engine over to the TBI style fuel injection
Expand the intake manifold options for your existing premag powered Dakota, Ram or van
For example, if you would
like to swap out your stock intake manifold, this adapter should allow you to use an intake
manifold which was designed for one of the earlier carbureted LA motors, which would
likely have a Holley 4bbl flange (such as the Edelbrock 2915, 5076, 7176, 7576, etc).
Replace your existing long block or heads with the Magnum version
You should be able to purchase an aftermarket intake manifold designed for the Magnum
heads (such as the Edelbrock 7577 or the Mopar Performance M1), and use this adapter to
run the engine with your existing TBI fuel injection system.
Due to the anticipated low demand for this
product, I have applied a flat black powdercoat to all of my existing stock so that
I can package them up and have them ready to ship right away. This is why ordering no
powdercoat is more
expensive than ordering one with the standard flat black powdercoat - because I can't
just pull one off the shelf and ship it, I will actually have to build one from scratch.
However, I have decided to retain the "no powdercoat" option in case somebody would like to
paint it with an exact match to their engine paint or chrome plate it, etc. Just be aware
that it may take a little longer than ordering a flat black version, and if you do not
plan to paint it right away, be sure to keep it someplace dry with low humidity or the
unprotected steel base plate may start to form flash rust.
For more information about powdercoat pricing and options in general, please click
here.
