Topic: Finally going for it...
in Forum: C3 Engines
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Anyone running the GM ZZ383??
If so, did you have any issues with vacuum pressure in terms of the brakes? How does it idle etc..?
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Manteca, CA - USA
Joined: 11/20/2005
Posts: 3623
Vette(s): 1978,two tone,Metalic Rootbeer & gold
1975 L48 4 speed
That sure sounds like a nice motor. Sorry, only in my dreams Shane.
Jimmy B.
Just can't wait to get on the road again.
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I'm thinking it will be nice. I have it ordered...I just wanted to see if anyone was running the motor to see if there were any other considerations. Wanted to get all the painful parts-buying out of the way as much as possible. 

Hi Shane,
I put GMPP's 383/425HP in my 82 with a Tremec 5 speed behind it and i really enjoy it. I didn't have any vacuum problems, and that was something i was also worried about. It is really a great engine, no problem with the idle, of course it is a full roller cam and lifters. My idle is set at 750 and it sounds great, no problems at stop lights with dieing. It's a small block that drives like a big block, gobs of torque.

Equinunk, PA - USA
Joined: 10/31/2007
Posts: 2465
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.


HOWELL, NJ - USA
Joined: 5/18/2004
Posts: 6812
Vette(s): 1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.
Cool deal Shane. Did you get the carb and dist as part of the package? Starter?
Go with new rad hoses and belts. New motor mounts - polys may be a consideration depending on how heavy tour foot is
.

If the motor comes with a water pump, make sure it's the short style.
Have fun!!

Paul
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in Forum: C3 Engines
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