[Jack Gifford]

Wade- thanks for the reply.
Could anyone here with a post-1960 Pontiac crank lying around- please look to see if it's drilled for 'straight shot' oiling (see the photos in post#37)? Thanks in advance.

[Mo]

Originally Posted by pontiac jack

Wade- thanks for the reply.
Could anyone here with a post-1960 Pontiac crank lying around- please look to see if it's drilled for 'straight shot' oiling (see the photos in post#37)? Thanks in advance.

Jack, I just quickly checked a 990 crank and a 70 455 crank. Both have what I would call a "T" type oil intersection. The mains are crossdrilled and the the rod bearing oil line intersects at about the middle of the main "crossdrill" line forming a "T". HTH

[screamingchief]

Hmmm,this "crossdrilling" conversation all sounds soooo familiar...

crossdrilling thread.

Ahhh yes...

[Jack Gifford]

Originally Posted by Mo

... checked a 990 crank and a 70 455 crank. Both have what I would call a "T" type oil intersection.

Thanks, Mo- sorry for my ignorance of 'mainstream' Pontiac parts. I certainly agree that the 'straight shot' drillings of these new AllPontiac forgings is much more desirable than a 'T' drilling.
Although not of interest to many- 'straight shot' drilling is yet another feather-in-cap for the old '58 forged cranks.