Originally Posted by Shoominati23
Originally Posted by fourgearsavoy
The oil pan choice should be obvious with the Milodon road race pan. It has plenty of baffles to keep the pickup covered. I really don't think the cross-ram would work without major tuning and modifications. The Nascar deal would be the better choice if you can find one because they do pop up once in a while for sale.
There are still some old guys still alive that used race those old cars turning left and right so they might be able to give you some parts information twocents

Gus beer


Yes, thats pretty much a given at this point,.,, and Im only allowed to run 4 venturis at max anyway.

But the burning question is compression (I was thinking 12:1 at least) But given I am allowed to go to .60 over- it is hard to find pistons for that size! (4.310) and there is nothing about stroke so I guess I will go up to 4.150 if I can get away with it.

And the second (well most important thing really) is choice of camshaft , as the heads will be flowing around 300cfm @ 500 lift I am told, I need something that has ommph up top but still carries torque from lowdown, say you might dip to 2000 after a gear change - it needs to haul the mail but not be like a high winding gasser motor that makes nothing under 4000 ,.. Rev limit I think is 7000 , and that sounds about right to me.

Carb will be a 4150 modded with all the good bits for trackwork, I'm not messing around with carbs myself as although I can do it, someone who knows what they are doing will eliminate any trace of bogging or hesitation and having that happen during a race could really ruin ones day.

Can anyone recommend a builder who deals in road and circle track engine frequently / exclusively? doesnt matter where in the country they are located..

I think I will go for TTI 2" primary headers with the 3.5" collector and everyone who has fitted them speaks highly of them, and they specialise in Mopar exhaust. I think 2" is the best compromise as the bigger 2 1'4" ones kill too much torque down low without the hassles of the slip joints on the larger models..

Anyway - keep on Moparing Mopar Mopurists wave


Couple of items stand out to me:

You will never be much below 4000 on the track
A stroker RB built big CR will have way more low end torque than you will ever be able to put to the track
You will actually want to use the cam choice to dial back the torque, and move the power band upwards
Almost all overtaking will be at the top end, before braking, if you are passing anybody exiting a corner, they are a dog to begin with
If you are running just against the clock, no overtaking, you can lower your power curve a tad.


" All sorts of things can happen when you are open to new Ideas" Inventor of Kevlar