Hello,
I have a LQ4 with f-body accessories in my 89 GTA. I am planning on installing a big stereo system that is going to need ~150amps at idle. The stock ~2001 F-body CS130D alternator fits nicely in the lower left position on my car but I really need an AD244 alternator. I understand that this fits in the stock bracket with no issues... Has anyone with this same setup managed to fit a AD244 in the lower left position without modifying the K-member? I guess my other option would to be to install a dual alternator setup with a second one in the upper right position... But that would kind of screw up the clean look I have going...
THanks,
Derek

 

i have that on my 6.0 with a lower dirty dingo bracket. i think i couldn't use the rear support though

 

This is a fairly common upgrade in the 4th gen F-Body community.


I cannot attest to the clearance on a swapped Third gen, though.

 

Generally the Body of the Delco "44" series Alternators (CS144, AD244, DR44) do not fit 3rd-Gen F-Bodies, when positioned in a "lower" Mount...
Due to hitting the Stock Engine Crossmember.

Most of the Alternator Brackets that I have tested do not fit at all... or fit terribly.
"Mid" Mount, and "high" Mount brackets do fit.

Otherwise, you could try the "low" Mount setup with an aftermarket tubular Crossmember.

Make sure the Alternator that you purchase includes a test-sheet with the potential output at different RPM (Alternator RPM).
Then make certain that the Alternator will supply enough amperage under load at the (Engine) Idle RPM/ cruising RPM.
Many alternators that are rated at a decently high output... are NOT capable of doing so at an idle/ low Engine RPM.

For example... My 3rd-Gen has Holley EFI with 8 ignition coils that can add-up to 40 Amps, dual electric Radiator Fans, dual electric Fuel Pumps, Transmission oil-cooler electric Fan, Engine oil-cooler electric Fan, air to water Intercooler coolant Pump, Nitrous-Oxide Bottle-Heater, ETC...

Since the car has all it's Lights working, windshield wipers, power windows and locks, Heat/ a Blower-Motor and a Radio...
As well as all the stuff that I added to the car in the paragraph above.
I needed an Alternator that could reliably handle a 150A-180A Load at an idle.
So I had to purchase a 350A rated Alternator. I purchased a 4-Wire Aftermarket Delco AD244 that is good for about 200A when the Engine is at an idle...
And about 350A as the maximum output.

 

Truck alternator in stock location/bracket without the rear support brace,removed the triangular support bracket to the kmember for clearance.Many have done this before and use the same belt.I did this upgrade yrs ago when the orignal fbody alt died and I wanted more amperage.

 

Yes, the Mid-mount and High-mount fit nicely.