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Swapping 305 for 350

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Old Mar 29, 2001 | 05:38 PM
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unknown_host's Avatar
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Swapping 305 for 350

I have an 82 Berlinetta with a 305. I am buying a 350 for it and I need to know what I will need to do to switch things over. The 350 I am putting on is a 1986 350 from a truck, I am removing all emmissions controls from it, and it is carbed. I already have a non emmissions carb for it from a 1970 350 so thats ok. Thanks
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Old Mar 29, 2001 | 10:24 PM
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You need a mechanical/vacuum advance distributor as well. If you use the one from the '70, convert it from points to electronic (like Pertronix).

------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/LB9 block, ZZ3 cam and intake, TBD heads, Hooker headers & y-pipe, 3" Catco cat).
57 Bel Air, my 1st car. 0.030 over 396, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.
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