GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

305 to a 350

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Old Apr 29, 2006 | 11:56 PM
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Default 305 to a 350

In the next few weeks I'm swappin in a 350 for my tired old 305, Its gonna be T.B.I so wat should I do about my computer?
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Old Apr 30, 2006 | 11:45 AM
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thow it away and get a carburetor..haha id guess your get a computer for the same year model out a 350..i dunno much about the tbi computers
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Old Apr 30, 2006 | 01:13 PM
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Yep, thats is either have someone tune your current PCM for it or purchase one for a 350. Thats all I did when I swapped my 305 to 350 in my 87.
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Old Apr 30, 2006 | 03:16 PM
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my boss has an 87 chevy that we put headers on it and took the fuel injection off and put an edelbrock multiport fuel injection and put a rear mounted turbo on it..woke it up abunch
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Old Apr 30, 2006 | 05:54 PM
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You need a 350 chip and maybe injectors. I can't remember if the injectors are different though. Send an email to Brian Harris. You can find him at TBIChips.com. He is a real nice guy.
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Old Apr 30, 2006 | 06:26 PM
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The puter should be the same, just change the chip. The computer for the 4.3 is the same also, for anyone wanting to swap out a 4.3 TBI truck to a V8 TBI. I always thought it would be a cool swap to take like a '93 or so S10 that had a 4.3 TBI and stick a 350 TBI in there. The engine harness would swap right over, the front accessories are the same, and all you would hafta do is change the chip in the ECM.
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Old May 1, 2006 | 05:28 PM
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k thanks, ya i've got the 670cfm holley tbi in the mail right now. Will a jet performance chip do?
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