Thread: novice engine question

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im just getting into the small block chevys and into the v8 engine. is it true that i can make a 302 ci from using a 327 block and a 283 crank. thanks

....yep, a 327 Block & a 283 crank is 301.75 cu. in.

327 has a; 4.001 bore & 3.25 stroke

283 has a; 3.875 bore & 3.0 stroke

bore x bore x stroke x .7854 x number of cylinders = cu. inches

So, 4.001 x 4.001 = 16.008
16.008 x 3.0 = 48.024
48.024 x .7854 = 37.718
37.718 x 8 = 301.75 cu. in........

awesome news thanks for the help. does the 283 crank drop in the 327 block or do i have to change something. and if it will can i use any 327 block even one with four bolt mains. thanks again.

Couple things to consider, they made both a large journal and a small journal 327 crankshaft. Make sure the 327 block you use is a small journal block. The 283 main journals and 327 small journal mains are the same size.

Far as I know, the factory never made a 4 bolt 327 block....... the chebbie guys should be along here shortly.....

The 283 crank only came with the small main journals, so you would have to obtain a small journal 327 block. Your going to need some good stout connecting rods and cylinder heads with large valves with strong springs and a cam that is suited for the 302.

I'd opt for a solid lifter cam because the 302 was made to obtain high rpms very quickly!

My best friend in high school had a new 69 Z28 that we drove the wee out of, nothing bets the sound of the 302 whining thru the gears on a four speed!!

Don