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Posted: Thu Oct 23, 2003 2:15 am Post subject: Removing 373 and going to 323...
my 78 has a 373 from an 83 monte and my 73 (that is no longer in running condition) has a 323 rearend. are they interchangeable? and... when i run about 90mph im cranking out a good 5ks on the tach with the 373s which doesnt really matter, i built this 305 with some beefy poop and have pushed it well over 7k. so my question is, is the switch going to help this 3spd auto at all besides make it highway worthy again? i just ran a 14.6 last friday at the 1/4 (timeslip to prove for all you haters ) im assuming this time will stay about the same, yay nay ?
Necoa #: 14
Location: 5(NC,SC)
Joined: Dec 07, 2001
Posts: 1761
Year: 1978
Model: El Camino
Posted: Thu Oct 23, 2003 3:10 pm Post subject:
No. They won't interchange. Changing to a 3.23 will deffiently help your engine live longer. Running at 5 grand alot is killing it. I am pleased with a 3.23 gear & th350 but someday I might change to a 700r or 200r. _________________ 78 Camino SS, 355,built 700r4,3.23
Gallery78 Camino SS, 355,700r4,3.23
MSGT 145 AW
NECOA #14
Posted: Thu Oct 23, 2003 3:17 pm Post subject: 90mph
what is the rpm's at 65-70? I am going from a 2.41 to 3.73. At 65 i am at about 2100-2200 rpm's. And why would ya drive 90 for any length of time. 14.6 1/4 you should only be at 90 for a couple of seconds... _________________ race prepped 350 .040, msd ignition(6-AL, billet distributer, MSD Blaster 2), L-31 vortec's, .488/.488 lift cam, 670 street avenger, air gap intake, roller rocker arms, TH350, 2500 stall, 3.73 gears. Exxon loves me!
Necoa #: 14
Location: 5(NC,SC)
Joined: Dec 07, 2001
Posts: 1761
Year: 1978
Model: El Camino
Posted: Wed Oct 29, 2003 5:36 am Post subject:
Afraid not, 73 is a 8.5 ring gear , the 83 has a 7.5 or 7.58. _________________ 78 Camino SS, 355,built 700r4,3.23
Gallery78 Camino SS, 355,700r4,3.23
MSGT 145 AW
NECOA #14
Necoa #: 14
Location: 5(NC,SC)
Joined: Dec 07, 2001
Posts: 1761
Year: 1978
Model: El Camino
Posted: Sun Nov 02, 2003 11:19 am Post subject:
I found a set of 3.23s at a local swap meet a few years ago to go with my factory posi unit. I had 2.73s but it wasn't enough. Your best bet is find some from a s-10 or 82-85 camaro. _________________ 78 Camino SS, 355,built 700r4,3.23
Gallery78 Camino SS, 355,700r4,3.23
MSGT 145 AW
NECOA #14
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) im assuming this time will stay about the same, yay nay ?
ddaaaaamnit. where can i get some 323s for this durned thing?