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'95 350 to '92 305 swap

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Old Feb 3, 2016 | 08:34 PM
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Rez-NDN's Avatar
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'95 350 to '92 305 swap

2 trucks involved
'92 sierra, 305 5.0l, 2wd

'95 z71, 350 5.7l, 4wd

Swapped the 305 into the 95 chevy, took out the 350...everything hooks up fine...only thing replaced was timing gears inside the time cover...made sure the marks aligned, then installed it in.

Only thing is I'm reading about these 2 engines' different timing positions...305 at 12:00 position & 350 at 1:30 position...I either get a backfire thru intake or no fire at all.

Last edited by Rez-NDN; Feb 3, 2016 at 08:45 PM. Reason: Editing
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Old Feb 4, 2016 | 12:36 AM
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Night rider327's Avatar
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From: Bowdon, GA.
Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: '95 350 to '92 305 swap

Your ignition timing is off. Adjust the dist.
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Old Feb 4, 2016 | 11:19 PM
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Re: '95 350 to '92 305 swap

Originally Posted by Rez-NDN
2 trucks involved
'92 sierra, 305 5.0l, 2wd

'95 z71, 350 5.7l, 4wd

Swapped the 305 into the 95 chevy, took out the 350...everything hooks up fine...only thing replaced was timing gears inside the time cover...made sure the marks aligned, then installed it in.

Only thing is I'm reading about these 2 engines' different timing positions...305 at 12:00 position & 350 at 1:30 position...I either get a backfire thru intake or no fire at all.
Got it to fire up but holding down the throttle after engine warms is still surging...switched some sensors but
It continues
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