ok i have a 350 in the machine shop now and am gonna start pulling my 305 today but i need to know this afternoon does my 305 tbi have a roller cam or hyd,the machine shop needs to know for the cam bearings if the 305 has a roller i want to use it. The 350 block is out of a truck and is a hyd cam..thanks in adavnce...Steve

 

Huh? Are you planning on using the cam out of the 305 or something??? It's not going to work well at all in a 350, and using an old cam with new bearings is not a good idea. Using the old lifters with a new cam is also asking for trouble- choose which ever combo you like, but get all new components. Why rebuild the whole block and use an old cam espacially when the profile was designed for an emissions-compliant 305???

 

no i was going to get a new cam and lifters but doesnt the roller cam have a plate in the block?if so then my 350 has to be drilled for it,or should i just stick with a hyd cam alot less $$$$ but i am also going to run a tpi setup not tbi

 

Let's get one thing straight - your 305 has a hydraulic roller lifter camshaft. The truck 350 has a hydraulic flat tappet lifter camshaft.

In other words, they're both hydraulic.

Just get a flat tappet hydraulic cam & lifter set. There's more to getting a block prepped for roller lifters than drilling and tapping - there's machining work as well. Hardly worth it.

And, the cam bearings are identical, anyway.

 

thats what i needed to know thanks