Are the camshafts listed for the 350 Olds OK to use in the 330? You folks here on ClassicOldsmobile clued me in to the intake manifold information. Now I'm wondering if the same is true for the camshaft offerings out there. Will the retro-fit hyd roller cams listed for the 350 Olds be good to go in a 330? Can anyone confirm the comp ratio of 10.25:1 for a 1965 330 315 HP? Should I be looking at a head swap to bring that ratio down? What heads would be a good choice? Anyone put E-Brock heads on a 330 yet?

 

The 330 ('64 to '67) has a 39 degree lifter bank angle... the 350's are 45 degree. The cams do not interchange.

Those 330 heads you are pretty good... why lower the compression ratio? Compression equals HP. The 10.25 is with a stock steel shim head gasket... newer styles are thicker so you will likely lose 1/4 point or more.

You'll get many different cam recommendations here... I got my 330 cam from www.camcraftcams.com .

 

However aren't the later 330's a 39 degree lifter angle? Anyone?

Right now there are only a couple of cam companies that have 45 degree cores for a roller, Bullet and OPP, and they're expensive.

 

This information although well intended is wrong. Didn't you mean to type that the early engines have the 45 deg bank angle while the later engines are 39 deg?.

Further, only the 64-66 330 uses the early 45 deg bank angle. The 1967 # 4 headed 330 shares the 39 deg bank angle with the later built 350 & other Olds small blocks.

 

Alzheimers.... sorry.

 

Yeah I goofed... my mistake. But my '67 330 is a 45 degree... I'm no Olds expert but the three 330's I explored all were 45 degree engines.

 

Most of the cam companies will grind you the correct cam, as long as you want it bad enough.

 

On ROP I remember discussions of early 330s being 45 deg bank angle engines. I have owned three #4 head 1967 330s & they were all 39 deg bank angle engines.

 

My '67 #4 headed project motor is a 45 degree... and the two others I have seen in the last year were also 45's....

Most cam grinders don't carry the 45 degree cam blanks but they can be bought from CWC. But I doubt you'd get a roller from anyone.

 

Uhh, I think I already said OPP and Bullet have ROLLER cores. Alzheimer's again or you going blind as well? Lol.
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