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Im ISO of POSI third member for my 63 Riv. I am ONLY seeking a POSI 3.23 or higher ratio. I am NOT interested in the 3.08. Thank you.

Aaron Forbes:bana: :hurray: :shield: :thumbsup:

Rcull,

The crossover exhaust isnt possible due to the X-frame on the 63 Riv...guess I forgot to say what I had it in....lol

I am only planning on driving it local. and I know the nailheads...

I had my 401 bored 0.60 over and a mild cam +25 HP, and a 3 angle valve job and all the stock remaining valvetrain with cast 9:5 to 1 pistons, and electronic ignition. I went with the lower...

I am now looking to go all out on my nailhead....stroker billet crank, ported heads, forged HC pistons, whatever it takes........who is the king? Who gets my money, and who is gonna make my Riviera...

Here is my two cents worth (+ $1500)

I had my dynaflow rebuilt for $1500. Works and shifts great...DOES NOT LEAK AT ALL which it did before! Not sure whether these guys saying all dyna's leak is...

Does someone in here know the torque specs for the valve covers, intake manifold, exhaust manifold, and oil pan on a 1963 401?

Could really use the info guys...I know this is the place to get...

Well, as of right now, we all know there is no such thing as aftermarket heads for our nailheads.....yet-

Northwest Speed Equipment in Lake Oswego, Oregon will have some available by the end of...

I answered my own question ( actually the guys at Northwest Speed Equipment did) they are a Corporate 10 bolt read end (buicks version) with a 3:56 non-limited slip differential. Having a...

I have a 1963 riviera with a 401 and the dynaflow tranny. What rear end does this have? I have the motor built very well and I have found out that it obviously does NOT have posi...so I want to...

Anyone know of an aftermarket single four barrel intake manifold for a 401 nailhead?? The carb is a 800 cfm Edelbrock. graemlins/banana.gif

Also... anyone know of a under the hood supercharger...

The two best choices are the Edelbrock Carter AFB 750cfm electric choke or the one I am currently running which is the Edelbrock Q-jet 850 cfm (Mine is .060 over w/very long duration cam).

Let me...

cCurrently have a rebuilt 401 .060 over, mild cam and decided to drop my compression to 9.5:1 for obvious reasons.....so my question is, what, if any, HP would I increase by going back to the...

I had my 63' Riv with a 401 recently rebuilt. I am wondering what the true displacement of this motor is?

It is bored .060 over and the stock crank ground .10 under.

Can someone let me know...