anyone know if a 350 block casting #3932388 is 4-bolt or 2-bolt. Or could this block be both? Any other info on this block is appreciated.. I have the casting number book as a reference...

thanks
mike

Chevy by The Numbers shows it as a 4 bolt block for passenger and Camaro use. Is there a engine suffix on the pad along with a partial VIN?

My neighbot has one thats stamped HB that came out of a Camaro that is a 350/300 Turbo 350 tranny, High Perf. This engine is being dropped into a 65 Vette this weekend.

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Jeff 67/68(2) & 69 RS's

http://hobbystage.net/camaro/hawaiiancamaro/index.html

Ive read that the ...388 can be either 2 or 4 bolt, depending on how it was built up and for which final configuration.
Mine is 4 bolt, but others Ive chatted with here have 2 bolt.
click

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69RS 350/255 LM1, Balanced, TRW forged pistons, .30 over, TH-350 auto.,
Dover White,Blue Vinyl top, F&R spoilers,pdb, close ratio ps,am/fm,3.08 Posi., A/C, fold down rear seat
My RS www.brainerd.net/~knudsen/69RS (http://www.brainerd.net/~knudsen/69RS)

click, does that mean the additional threads were tapped in all the blocks or just the 4-bolt ones?

Only 4 bolt blocks have 4 bolt holes. 2 bolt blocks can be converted with caps and machine work.