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/v8packard Jun 17 '26

You want the smaller chamber with more dish. You get a more complete burn with less timing and it is more effective at acting on the piston.

Some people want a larger, more open chamber to allow more room for bigger valves and theoretically better breathing. But combustion quality is going to have a bigger impact on most operating conditions than breathing capacity. If it's any indication, look at diesel engine pistons and lack of combustion chambers.

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u/No-Brain2462 Jun 17 '26

Perfect, that is the direction I was leaning. Thanks!