88-98 Chevy 350 Flywheels, same throughout?

[JScott23]

Looking to get a chevy 350 crate motor for my 94 to replace my mechanically injected 6.5.... So i'm gonna run a GM Performance drop in replacement motor...

88-95 Chevy Crate Motor (Pre-Vortec)
96-00 Chevy Crate Motor (Vortec)

I'll be running a carb on ether one, but I'm leaning towards the 96+ motor due to the better design of the vortec heads, etc.

I will be buying a brand new torque converter... the question is do all 350's use the same flywheel?

 

[98_k1500]

No, vortec flywheels (flexplate if you wanna be politically corect for an auto) are weighted.

 

[JScott23]

Okay so would a Pre-vortec flywheel work do you know?

I don't see why not since they all use a 1pc rear main seal, i'd think the bolt pattern would be the same. It's gonna be a carb'd 350, just using a 96-00 350 crate. The guys at Summit told me that i can easily take this motor and add a carb intake, that people buy them for projects all the time. I just wanna know what flywheel/flexplate to use for a 4L80E, i'll prolly be picking up a monstertrans torque converter which doesn't specify any specific year. That shouldn't matter.

 

[polar]

What will you be using to control the transmission

 

[JScott23]

So i just called Summit Racing. they told me regardless of what GM crate i go with (88-95 or 96-00) i can use the same flywheel and run a carb on it.

So that answers that.

 

[Chewy1576]

My 90 TBI 350 flywheel is weighted. They should all be the same.


Sent from my iPhone using Tapatalk

 

[JScott23]

What will you be using to control the transmission

Hey sorry i just saw this.... lol

I've already purchased the US Quick Shift 1 (formerly Optishift) controller for the mechanical injection conversion i did so it's already installed. All the transmission will need is a more adequate torque converter, and a reprogramming of the module to better adhere to the SBC's numbers.

 

[98_k1500]

I couldn recall if the TBI flywheels were weighted or not. you should be good.