Ram Air IV versus 455 HO

[Charley Lillard]

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......

[supergonzo]

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.

[Belair62]

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

[Chevy454]

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.

[Steve_Hoog]

You know the distributor spins the opposite direction, right?

[Belair62]

They just have their own set of tricks and don't respond to the things a big block responds to....am I close here Poncho dudes...

[supergonzo]

You can find Intake gaskets no problem.. fel pro makes them.I find the exact number Charlie if you want.
As far as ass backwards from chevy?? Yes the distributor turns the other way, and you can take it out of the car without pulling the intake manifold and draining all of your antifreeze out of the radiator. Pontiacs are much easier than most engines to work on, and any competent engine builder should be able to work on any brands.

As far as what makes them go or special tricks?? Most engines regardless of brand respond to mostly the same things...which is the right combination of parts. And careful building techniques, I am not sure what you guys think makes an engine tick. They all are just blocks, heads, intakes & exhaust and camshaft. Air pumps if you will, the more efficient you can make any brand the better.

Putting that discussion aside, everybody has a few tricks up their sleeve(that probably work on all brands), but that comes later, if you have a good engine builder your 455SD will make you very happy.

[Charley Lillard]

I will be fine.. @##$%%crash bang boom@#$%^&...Now does anybody know where I might find NOS SD intake gaskets ?