Re: Ram Air IV versus 455 HO
 

Yes you can run stock lifters, Pontiacs are much better at top oiling than a Big Block.

Re: Ram Air IV versus 455 HO
 

You can run stock rockers 1.50 ratio if you want but why??
If you are getting an expensive HR cam why would you put stock rockers on it. You could get roller tip 1.65 ratio rockers, but if you gonna do it, do it right.Get Roller Rockers. They will fit under the stock valve covers, if you use 2 valve cover gaskets. Look Stock....Go Fast

Steved...I think you meant stock rockers, not lifters with the HR cam

Re: Ram Air IV versus 455 HO
 

I don't want to double the valve cover gaskets, now what ? https://www.yenko.net/ubbthreads/imag...ns/burnout.gif

Re: Ram Air IV versus 455 HO
 

So use roller tip rockers, they look like stock rockers with roller tips. Comp Cams has those as well.

Re: Ram Air IV versus 455 HO
 

Yes I meant stock rockers, see Charley gets me all twisted up when he starts talking Pontiacs. But I say throw stock rockers in the trash, we finally have a multitude of goodies to choose from now. Lets use em!!!!

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Re: Ram Air IV versus 455 HO
 

So I get the comp 1.5 ratio roller tips because the 1.65 ratio require double gaskets ? And the XR276HR ? and 10-1 compression and I will be happy...... https://www.yenko.net/ubbthreads/imag...lins/smile.gif

Re: Ram Air IV versus 455 HO
 

You can choose either .15 ratio or 1.65 stamped steel roller tips rocker arms. NEITHER will hit the valve covers. I would choose 1.65's.
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The full Aluminm roller rockers are the one that need 2 gaskets. because the aluminum rocker itself is much bulkier.

Re: Ram Air IV versus 455 HO
 

Charley...I would really suggest you take these guy's advice and use someone who KNOWS PONTIAC...they are different animals.

Re: Ram Air IV versus 455 HO
 

I can't believe I'm saying this, but I agree with Belair. From talking to SuperStock guys, those Ponchos seem to do things kind of bassackwards of a Chevy.

Re: Ram Air IV versus 455 HO
 

You know the distributor spins the opposite direction, right?

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