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there was 2 distinct engine blocks Chevrolet made back when. One was physically larger then the other thus that on was the big block.. the other was smaller hence the small block. The heads on the BB was a splayed design where on the sb was not. The middle 2 exhaust ports on the sb was siamesed where the bb was not. Nothing is interchangable on the 2 engines. And you can't tell whether it is a sb or a bb by the cubic inches.I have seen sb's well into the 450's and bb's as low as 396 cubic inches
Thankyou for the excellent post! I'm not very knowledgeable about this kind of thing, it's good to learn stuff. I just like driving the cars and looking at them.
Thankyou for the excellent post! I'm not very knowledgeable about this kind of thing, it's good to learn stuff. I just like driving the cars and looking at them.
Wasn't the 368 Cadillac motor considered a big block or a small block?
my buddie wants to trade a 500 for my 351 windsor his caddy 500 is a 70s my widsor is a 79 what one is more rare and worth more please help they both run great
Def! I have owned all three and all were excellent. I had a 1971 Oldsmobile Toronado with a 455 (this was the fastest) a 1972 Buick Electra with a 455 (fast too) and my 1973 Pontiac Grand Ville has a 455... powerful, but not as fast as the other two thanks to emissions controls.
I have had two Chevys with big blocks... thumbs down. Both had have cam woes. One was a 69 Caprice 396 and currently my 72 Caprice wagon with a 402. Had cams replaced in both... 69 turned out OK, but started smoking... still having problems with my 402... low power. Frustrating, as I have a fortune in this car.
my buddie wants to trade a 500 for my 351 windsor his caddy 500 is a 70s my widsor is a 79 what one is more rare and worth more please help they both run great
While neither are rare I would say the 500 Cadillac is more rare cause the 351W was built from the late 60s to late 90s versus 1970 to 1976 for the 500 Cadillac. The 500 is capable of far more power just no comparison there. Since they both run great I would pay more for the 500 Cadillac myself.
Def! I have owned all three and all were excellent. I had a 1971 Oldsmobile Toronado with a 455 (this was the fastest) a 1972 Buick Electra with a 455 (fast too) and my 1973 Pontiac Grand Ville has a 455... powerful, but not as fast as the other two thanks to emissions controls.
I have had two Chevys with big blocks... thumbs down. Both had have cam woes. One was a 69 Caprice 396 and currently my 72 Caprice wagon with a 402. Had cams replaced in both... 69 turned out OK, but started smoking... still having problems with my 402... low power. Frustrating, as I have a fortune in this car.
How much power does your 1972 Buick Electra and your 1973 Pontiac GrandVille have? I know 1973 was not a performance friendly year due to the Emissions Controls
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