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Old 02-07-2013, 01:49 AM
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Choosing Gears To Go With A Magnum 280h Cam

I have a mild built sbc 350 which rear end gears should i go with

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Old 02-07-2013, 02:03 AM
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car=
trans=
tire height=
if automatic stall=
weight of vehicle=
use of vehicle=

without knowing this.. I'd say 3:43 or 3:73
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Old 02-07-2013, 02:20 AM
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Originally Posted by gearheadslife View Post
car=
trans=
tire height=
if automatic stall=
weight of vehicle=
use of vehicle=

without knowing this.. I'd say 3:43 or 3:73
1982 el camino
Th350 trans
2200-2700 stall
28" tire
mostly street some highways
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Old 02-07-2013, 03:14 AM
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3:73 if more hyway long runs 343
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Old 02-07-2013, 09:49 AM
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Quote:
Originally Posted by F-BIRD'88 View Post
4.10:1 gears
Thats a lil too low i still want to be able to make a 30-45 min high way run
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Old 02-07-2013, 01:08 PM
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if you have the cam , and it's installed, 373's and 26"tall tire..
the stall is a tad low even for the 270mag..

I years ago ran a comp 292 magnum cam in a vehicle with a 2400 stall and 273 gears and 28" tires.. it was fun at 100+ the cam came on hard at 95mph..


2nd gen t/a's float around a lot at 120+ 135+ they are down right scary
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Old 02-07-2013, 02:01 PM
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Quote:
Originally Posted by gearheadslife View Post
if you have the cam , and it's installed, 373's and 26"tall tire..
the stall is a tad low even for the 270mag..

I years ago ran a comp 292 magnum cam in a vehicle with a 2400 stall and 273 gears and 28" tires.. it was fun at 100+ the cam came on hard at 95mph..


2nd gen t/a's float around a lot at 120+ 135+ they are down right scary
Yea the cam is already in i been running it for about 5 months with 323 gears and 2200-2700 stall. It dosent pull on the brakes when im at a stop light though. Now i guess ill be going with a 3000 stall & some diffrent gears
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Old 02-07-2013, 02:24 PM
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before you do all that see if you can borrow someones 26" tires. and see how that does..
or just start with the 3000 stall and see..

fyi 295/50/15 on 8" wide 4" backspace rims fit under the 78-88 g bodys

oh and they are 26" tall
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Old 02-07-2013, 03:37 PM
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Quote:
Originally Posted by F-BIRD'88 View Post
I just searched your old posts..

Instead of trying to make your car match the camshaft by changing the converter/transmission and gears,

Why don't you make the camshaft in the engine match the car.?

Change the camshaft to a Comp 265DEH-10 12-208-2
or a Isky 201264/271-12

Either , is a much better match to the car and mild converter and 3.23 gears and how you like to drive it.
The right solution at a fraction of the price too.

The car will fell like a whole different deal.

Do you still have those sad 882 cylinder heads on this motor?
yea i like the 280h cam so im going to stick with it ill just change the converter & gears
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Old 02-07-2013, 03:59 PM
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Originally Posted by F-BIRD'88 View Post
If you like it and want to make it work get a 3500 stall 10" converter
and 4.10 gears. And get better cylinder heads than the 882's

They are the worst of the worst. No wonder you want to change things.
The 280H cannot make power with crappy 882 heads.

with the 882 heads, a shorter duration cam is much better.

Been there.
Will do thanks
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Old 02-07-2013, 04:43 PM
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Originally Posted by F-BIRD'88 View Post
280H cam and 882 heads equals no low end torque , no midrange torque and no top end torque.
Im just useing these heads for now until i get enough money for some aluminum heads
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