[67SSBOSTON]

If my 396 is bored .030 what is the new CI of the engine? I have been told it is 402 to a 426? Thanks

 

[1966_L78]

A 396 BB bored 0.030 over would be approximately a 402.

Stock bore 4.094
new bore ~4.124-4.125

I can't remember the stroke off hand... pretty sure its 3.75inch...

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Tony
1966 SS L78 coupe
1966 SS convertible
1965 Impala convertible
1 wife that has drawn the line...

 

[d1_bradley]

Its a 402.

Look here.... http://homepages.ihug.co.nz/~don_s/enginespecs.htm

 

[1Fast7D]

Bore x bore x stroke x #of cylinders x .7854 4.125 x 4.125 x 3.76 x 8 x .7854 = 401.991282 cubic inch displacement

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Undee's70SS