Chev Small Block

[TiTAN]

I haven't used the Precision rods. Anyone who has, can you tell me if they really use a 5/16" rod bolt in them? surely not. Maybe if they were an L19 or Carr bolt it may be a different story. I know some scat ones used to on the SR20 and 3S toyota rods but even they have 3/8" bolts now. Thats a lot of load on a little bolt! Spool and most others run a 3/8" bolt.

they are the rods in my engine (which you put together) you did comment on them being a different bolt but i dont remember which model bolt you said they were.

[proengines]

ah ok, if that's the case then they have 3/8" bolts.

[T04GTR]

what about having the oil hole in the bigend like the factory rods? yes the rods i have in my 26 have the grove you speak off.

[proengines]

The oil squirter in the factory rod isn't there to oil the pin, it's to oil the thrust side of the bore. It will squirt a fair bit of oil around but again, you're relying on splash or mist rather than a jet of oil to the pin. If your rods have the grooves in them I wouldn't worry about doing anything else, it will oil the pins and do some piston cooling.