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Old 06-09-2005, 07:16 PM   #1
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Location: Upstate NY
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Car: 1982 z28, 2007 Silverado
Engine: 350 Chevy, 10-1 CR, Comp Cams 270h
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Axle/Gears: 3.23

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SBC Crank Timing Gear

Hi Guys, I'm thinking of buying one of the GM performance parts crate motors, and I want to know how difficult it is to remove the timing gear that is on the end of the crank.

I want to put a gear drive on it, mostly because I like the sound

I'm thinking the crank needs to come out, and have the gears pressed on/off at the machine shop?

I do not want to take the crank out of a brand new motor, is there another way?

Thanks!
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Old 06-09-2005, 07:33 PM   #2
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Car: 1984 Z28 Hardtop / 1988 IROC T-top
Engine: 383 Carb / 305 TPI
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Try a 2 or 3 jaw puller.
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Old 06-09-2005, 07:41 PM   #3
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Yup, use a gear puller
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Old 06-10-2005, 06:30 AM   #4
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i'd just about think if you're asking this you ought to round up a experienced helper for the engine swap.
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Last edited by ede; 06-10-2005 at 06:34 AM.
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Old 06-10-2005, 07:21 AM   #5
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You may like the suund ,but no one else will.
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Old 06-10-2005, 09:16 AM   #6
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Quote:
You may like the suund ,but no one else will.
Just how loud are they, I remeber hearing them, and liking it

But..... Does it make it impossible to diagnose problems with the engine because you just cant hear anything else?


BTW, I have done some engine swaps in the past, but I dont have much experiece with internal engine components.... I have been driving newer vehicles for years now... My wife wanted a new car, so I bought her a 2005 Chevy Malibu... So I bought this 82 z-28 for myself, just to play with.... I'm sorry if I'm not up to speed.... I'm here to learn
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Old 06-10-2005, 02:45 PM   #7
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Quote:
Originally posted by ck76239
Does it make it impossible to diagnose problems with the engine because you just cant hear anything else?
It can, but so can loud exhaust. It can also play havoc with your knock sensor, if you have one.

Gear drives are one of those things that sound cool for the first 5 minutes.
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Old 06-10-2005, 03:00 PM   #8
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Car: 1982 z28, 2007 Silverado
Engine: 350 Chevy, 10-1 CR, Comp Cams 270h
Transmission: Th350,
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What about one of the quiter types of gear drives, would one of those be a compromise? or are they pretty much silent?

Thanks!
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Old 06-10-2005, 03:46 PM   #9
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why do you want one? they make too much noise and rob HP. a quality made chain and gear set would prefor better.
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Old 06-10-2005, 04:00 PM   #10
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Car: 1982 z28, 2007 Silverado
Engine: 350 Chevy, 10-1 CR, Comp Cams 270h
Transmission: Th350,
Axle/Gears: 3.23

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Just because.... I like the noise, besides, it's not a daily driver, I doubt I'll drive it more than 2000 miles a year, so I'm not worried about it be annoying after awhile....

I'm sure that it does rob some horsepower, but it cant be that big a deal... If my motor made 250 hp (just a #, not sure what kind of HP I'll really have yet), and the gear drive took 10 away, I dont think I would ever notice it...


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Old 06-10-2005, 04:00 PM
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270h, 350, chevy, comp, crankshaft, gear, gears, knock, removal, remove, sbc, sensor, sound, sprocket, sproket, timing
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