4.3 Vortec conversion

ANYTHING RELATED TO MANUAL OR AUTO TRANSMISSIONS GOES HERE.
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Topic author
gkangas
I am merely driving my van
I am merely driving my van
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Joined: Tue Nov 01, 2016 5:41 pm

4.3 Vortec conversion

Post by gkangas »

I want to install a 4.3 Vortec engine onto my 5 speed transmission which has a 1 inch diameter and 14 spline input shaft. What fly wheel and clutch assembly can I use?

Captn. Crunch
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Re: 4.3 Vortec conversion

Post by Captn. Crunch »

So I'm just guessing here but because this a van forum you have an Astro/Safari van. If that is so and you are putting in a 4.3, you must have a first gen four banger with a manual tranny? If I am correct, then I would tell you to go the junkyard route and get the drivetrain out of a 2WD five speed S-10 truck. Save the shifter off yours and swap it all out.
I'm making this suggestion because I have NO idea as to the spine counts/shaft lengths/throwout bearing lengths/bell housing bolt patterns you are going to need.
Captn. Crunch
"I don't beat my rig-I use it to it's maximum potential"
1994 Safari conversion (sold) and miss'n it!
1999 Safari SLE AWD junked
2003 GMC Safari AWD SLT
cast iron Torsen equipped front diff
S-10 leafs-G80 rear w/3.73’s
2” body lift w/Falken Wildpeak AT’s
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