Small Block vs. Big Block

[Stingray74CC]

I'm doing research on the major differences and developments b/w the small block and big block GM engines. The 396 and 402 are the engines I would like to compare but any history would be great. Can anyone point me to some articles concerning this? Thanks for the help.

 

[JohnZ]

Not sure exactly what it is that you want to compare between them, but the 402 was simply a .030"-over 396.

 

[Stingray74CC]

there's an instance of my lack of knowledge

Basically I'm trying to compare the differences (major and minor) b/w a big block and small block. If there aren't many, what are advantages. I'm looking for sources of information. Surprisingly, I'm having a tough time locating info on GM big block engines.

 

[Edmond]

Anthony,

Looking to do a project?

 

[brooks]

larger displacement engines will generate more HP. they also weigh more, which may not be the best choice for a specific application. drag racing a bb will win everything else being equal. for autox a sb with fewer horses would give better balance and better times

 

[Stingray74CC]

This may lead to a future project but for now...

For now it's just a presentation in my Engine's course. I may use this info later to decide when I do build my own beast but until then I'll have to dream.

 

[Red73BB]

BB vs BB

Anthony, You are comparing the same block. The chevy small block ranges from (265?) 283 to 400 C.I.D. The BB were 396, 427 and 454.
Gary

 

[Stallion]

"There is no replacement for displacement."

You should start out with that. I shouldn't say that though, because I do have a small block (350) in my Vette.

TR

 

[grumpyvette]

here this will get you started


http://www.teufert.net/bbchevy/bbchevy.htm

http://www.nastyz28.com/bbcmenu.html#engine

http://www.afn.org/~afn14222/sbchist.htm

http://www.antiquechevytrucks.com/Content/Engine Information/engine_information.htm

http://www.musclecarplanet.com/History/Chevrolet_70.htm

big block

small block

Ill add more later several sites are down now

 

[Stallion]

Are those two crate engines?

 

[Stingray74CC]

grumpyvette

Thanks for the info. The sites are very helpful.