Quote:
Originally Posted by special-K
The thing with all that is it is 100% car guy oriented. Not a single word on trucks, other than their motors can't be verified due to no partial VIN stamped in the block. Well, that's a Camaro guy talking, and he would need that number to have any idea of what he is talking about. A truck guy who knows these things inside and out up, down, and all around is your book. No mention of the 327s used in 40-60 series trucks or pickups.
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I don't completely disagree with your comment. But I did discuss blocks which are car/truck/industrial. I cannot speak to C40 and larger (but I think 68 was the last year for a 327 there as well). The simple facts as far as I can see:
1) 67 and back 327s are all small journal and thus cannot be 4-bolt main.
2) 68 and up 327s are all large journal-however there are no 4-bolt blocks in 68. The 4-bolt block was introduced in 69. Mortec and others do not list a 4-bolt block in 68.
3) 68 is the last year for a 327 in a C10-30 so there are no 4-bolt mains in them since the block didn't exist yet.
4) as far as I can tell the only 327s in 69 went into Camaros and B-bodies, not into any trucks. C10-30 Trucks got 350s in 69.
5) Of course a 327 4-bolt can be made, but the factory never did.