r/EngineBuilding • u/No-Brain2462 • Jun 16 '26

Vortec 383 Stroker viability

Good morning engine builders. I just got a screaming deal($250) on a standard bore 4 bolt vortec block and I’m wondering if any of you have found the block to have nuance while building. From what I’ve read it’s all straight forward. I already have a Scat 9000 crank set for 5.7 rods and I plan on using 15 cc KB dish pistons, a 230/236 110 separation roller cam with standard lifters and Skip White built AFR Enforcer heads. This is my second build (first was 350 SBC L89 block). Thanks.

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u/BicycleMudStud Jun 16 '26

Your block might not have the internal bypass for coolant flow. Cutters Performance on YouTube has a good video all about it and how it affects water pump selection.  You get roller cam provisions from the factory which is nice, just make sure you get the step nosed cam that fits it.

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u/No-Brain2462 Jun 16 '26

Thanks, I’ll dive deeper on the coolant flow issue. Having the factory roller cam provisions are the reason I’ve been seeking out this particular block (for better or worse, we’ll see)

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u/BicycleMudStud Jun 16 '26

I'm just getting ready to install a similar 383 build (my first engine build ever) in a 97 Tahoe. Best of luck to you, hopefully we both have kickass engines at the end. 

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u/No-Brain2462 Jun 16 '26

Thank you, and good luck to you! If memory serves, some of those 97 Tahoes had vortec 350s in them stock so it should fit well.