Pilot Bearings- New Engines to Older Transmissions: 4.3 to SM465

[The Freeak]

I can't find a clear answer on this- I want to mate an older SM465 to a newer (1994) 4.3 V6.
What pilot bearing will I need?

(EDIT- And yes, I searched... )

 

[PAE]

Get the specs on the orginal pilot bearing and compare dimensions.

Or maybe the 4.3 will take a standard 590 ID pilot bushing ?

Is there a specific reason you want an actual bearing or just using the term generically ?

standard pilot bushing.
https://www.summitracing.com/parts/...MIiYHT7bPu6gIVLh6tBh1wVAoZEAQYBSABEgKul_D_BwE


Actual pilot bearing.
https://www.summitracing.com/parts/...MIiYHT7bPu6gIVLh6tBh1wVAoZEAQYAiABEgLuLPD_BwE

 

[Lowrollin70gmc]

The 4.3 can use the same pilot bushing/bearing as the 350 that could’ve come in front of that SM465.

Anecdote: I used a SBC pilot bushing off my shelf on a 97 4.3 because the parts store was closed for the 4.3 pilot bearing when I swapped engines. Same dimensions, worked perfect.

 

[The Freeak]

Get the specs on the orginal pilot bearing and compare dimensions.

Or maybe the 4.3 will take a standard 590 ID pilot bushing ?

Is there a specific reason you want an actual bearing or just using the term generically ?

standard pilot bushing.
https://www.summitracing.com/parts/...MIiYHT7bPu6gIVLh6tBh1wVAoZEAQYBSABEgKul_D_BwE


Actual pilot bearing.
https://www.summitracing.com/parts/...MIiYHT7bPu6gIVLh6tBh1wVAoZEAQYAiABEgLuLPD_BwE

I was using the term generically. Ironically I'm usually more precise about that sort of thing. Thanks for the info.

 

[Pender1]

I put a SM465 behind my 5.3L and used this extended pilot bushing. I don't trust pilot bearings in offroad applications.

https://www.amazon.com/dp/B01N9VXHP...psc=1&ref_=lv_ov_lig_dp_it&tag=91812054244-20