What engine best to put? BelAir 1973

Asked by Oct 19, 2010 at 04:43 AM about the 1973 Chevrolet Bel Air

Question type: Car Customization

I got Chevrolet BelAir 1973 with 250 R6 engine, and manual transmission.
I want to put 350 V8 engine, and automatic transmission.
What engine and transmission will be easier to install in my car?

Best Regards,

2 Answers


Any small block would basically drop in, and you can find them ANYWHERE. Mine's out of a school bus from 1974. Depending on your budget, you can go with anything from a TH350 (3-speed) TH400 (4-speed) or a 700R4 (with overdrive)

HOLY CRAP do NOT do THAT. A small HANDFUL of '73 Bel Airs came through with a 6 cyl and 3 speed. They were the LAST full size Chevies to be equipped as such. I've only seen ONE in 30 years. I'd be willing to bet there are maybe 3 or left on the planet and the demo derby morons are always looking for big Chevies. Can you post a photo of it??

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