What engine do I have?

[wakeboarddrumma]

I was just wondering how I can figure out what engine I have. I know it's either a 327 or 307, but I don't know which one. How can I find out.

[Green Machine]

Casting number is behind the head on the drivers side, assuming the gunk isn't to thick, there is another number on the block above the water pump bolts on the passenger side. www.mortec.com has casting numbers.

[Longhorn Man]

if it's original, and a 68, then look at your option sheet, a 327 will be listed, a 307 would not be listed since it was the base engine.
If you suspect it isn't original, than it could be anything

[wakeboarddrumma]

Ok, I guess it's a 307. Could someone tell me more about this engine? Horsepower? Litres? Thanks.

[truckdude239]

idk i got the 307 in my 71 and it got great pick up and i get about 12-13 mpg and its listed as a 5.0

[pissonNOS]

my internets really slow right now so i wont search for you but if you type in 307 stroker into search there was a lot of talk a littlw while ago about 307's personally i love mine and i can spank most of my friends in 350's

[pissonNOS]

http://67-72chevytrucks.com/vboard/s...hlight=stroker
I was bored tonight so i found it for ya

[Southpa]

Look on the front passenger side of the block for a stamped number followed by some letters. The letters represent a suffix code which will give you specific info found at this website.

http://www.nastyz28.com/spmenu.html

[409biscayne]

On the 68's i've owned the 307's were 2bbl , and the 327's were 4bbl . Is this always true ? Just curious .

[72armyswbtruck]

Makes me go Hmmn

[special-K]

No 4bbl 307s from factory.