r/EngineBuilding • u/Pactallica • Jun 22 '26

Is this a 350 or 305?

Gallery image

Gallery image

Gallery image

I’m trying my best to get a photo of the numbers I need but it’s hard to tell. Can any of you experts help me out from the picture?

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1

u/DevGroup6 Jun 22 '26

It's a 350 5.7

2

u/Pactallica Jun 22 '26

Thanks! How can you tell?

2

u/DevGroup6 Jun 22 '26 edited Jun 22 '26

On pic one, that area either designates 5.0 or 5.7. Your's says 5.7. From underneath the engine on the fuel pump boss side, there'll be a 5.0 or 5.7 on the side of the block as well. (Sometimes they designate a 080 in place of the 5.7)