Need to know the block casting number to be sure. My chevy by numbers book shows the HF suffix code for years 65,66,67 and 68. 68 would be the large journal as last year for small journal is 67.
your forced to look at the casting numbers.. and get a little greasy... I know the feeling.. I took my digital camera and poked it over the back of the block and shot a photo when I didnt want to crawl across the fender, or the engine (or couldnt) then shot it and checked until I could actually read it. the one I tried to look at had a hood that was so rusted, I could only open it enough to jam my arm in and shoot the photo.
Dave, you can also tell by looking at the front of the block. The front intake seal (to the block) is a different shape on a 65 327 than it is on a 69 350. I don't have pictures right now but if I get a chance later today I can look for them.
Look at the last picture on page 1 at the bottom of this thread.
See the circular opening at the front of the block on my small journal 327 where the intake seal is? I think all small journal 327's except 67 look like this. A 350 would never look like this.
__________________
1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
i think this one is a large journal 68 or 69, but it has camels on it The long water pump has been added later, and i think it is a collection of different eras, the intake is 1968 for sure, but there is no accessory holes in the heads, so they are pre-68 for sure.
thanks carl for the tip on hte oil fill area on early blocks. does not look like it in this pic
Those can still be 68 heads (hump, no bolt holes). Some of what I see on that engine says 68 to me, except for the alternator bracket which is clearly 69 and up.
-- Edited by Carl Stevenson on Sunday 28th of November 2010 01:48:35 PM
__________________
1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
Just wondering Dave, why do you want small journal? is it worth more? would have a steel crank i suppose... but i would think the large journal (although as common as belly buttons) would be a better foundation for a build...
Just wondering Dave, why do you want small journal? is it worth more? would have a steel crank i suppose... but i would think the large journal (although as common as belly buttons) would be a better foundation for a build...
ak
Hey, what do you have against small journal cranks? I take that personally!!!!!
Seriously though, why do you say that AK? Because bearings are easier to get? That is really all the difference.
__________________
1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
You could put the crank in a 4 bolt main 350 block. The large journal 327 crank was available as a forge crank also. Mostly in trucks and the High performance aplications. Or you could make a large journal 68 L79 engine as used in 68 chevelles.
-- Edited by Beaumont4008 on Monday 29th of November 2010 01:02:12 PM
Just wondering Dave, why do you want small journal? is it worth more? would have a steel crank i suppose... but i would think the large journal (although as common as belly buttons) would be a better foundation for a build...
ak
Hey, what do you have against small journal cranks? I take that personally!!!!!
Seriously though, why do you say that AK? Because bearings are easier to get? That is really all the difference.
Carl, sorry to hear about your small journal! Just wondering because Dave indicated that he'd be disappointed if its a large journal and it'd be worthless...(in his post)... No matter to me, just wondering and trying to learn why the preference, you could always use thicker bearings on a small journal crank in a large journal block. I suppose it would depend on intended use... -small journal crank is better than large journal if you are spinning it higher than 7000rpm -small journal come with steel cranks (i think they all do?) -large journal 327 steel cranks are super rare -small journal rods are heavier (not good) than large journal -large journal block allows you to go 383ci etc.etc. -more CI=more HP
You could put the crank in a 4 bolt main 350 block. The large journal 327 crank was available as a forge crank also. Mostly in trucks and the High performance aplications. Or you could make a large journal 68 L79 engine as used in 68 chevelles.
I did that years back as well...... But I believe I put a 307 crank in a 350 to make a large journal 327. (I think that is how I did it)
You could put the crank in a 4 bolt main 350 block. The large journal 327 crank was available as a forge crank also. Mostly in trucks and the High performance aplications. Or you could make a large journal 68 L79 engine as used in 68 chevelles.
I did that years back as well...... But I believe I put a 307 crank in a 350 to make a large journal 327. (I think that is how I did it)
Yes, same crankshaft.
__________________
1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
