Re: engine choice?
 

Can't the side bars be welded to a 6x6 bolted plate as well as the other braces? What if no sub frame connectors, for the bar braces to "weld" to? Wording in rule book is contradictive somewhat, one can "bolt" in the roll bar but the braces have to welded to subframe, page 212-D & 205-4:10. Most of this was written 40-50 years ago (when the fastest Super Stocker ran in the 11s or high 10s) ,maybe time for clarification or update.

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The welding to subframe connectors is optional if you have a rollbar instead of a cage. Look at the rule book for the minimum required installation.

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That's what we're taking about, minuim roll bar, not a cage

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now that this thread has been completely hijacked, time to add another question. I am going the 318 route now. What are the best years for 318 blocks as far as deck and wall thickness?

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I tried to stay on point for you. Just find anything as early as you can 66-72 dates are best. Most of these should be nearly free. For years I paid scrap value for 273 engines.

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Paul, you were directly on Point, it was the roll bar and other discussions that went into another direction. I have a couple of 273 blocks here at my place if you want them

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You did bring up the roll bar did you not?

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Pat Cvengros called me today and told me the new Diamond 318 piston, #80077, was a "True flat top" and "no valve notches" according to Pat. Not sure what happened, but that is disappointing.

I believe I originally brought up the roll bar issue since I was reluctant to put one in my 340 Barracuda. I guess it could always be cut out.

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go re-read the thread.

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why did you decide to sell the 318?

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That is what I do. I have a good customer that wanted it. I have already started on another. I will just get my 68 hemi cuda out for the next race. The reason I built the 68 318 stocker is there is very little maintenance,I new it would be fast after I got the piston with notches oked and I did not want a roll bar car. Racing in a t-shirt this summer was nice too.

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Never mine, i found the answer to my question

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Nice, somewhat vague, article. :rolleyes: Nice car.

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Totally missed this thread. Idk where to start but I will say that the flat top piston on the 318 (which is the only legal one as far as I know) is one of the limiting factors...I've reached the point where the only improvements on my car will come in the form of cubic dollars spent....also there is a single plane intake legal for the earlier year 318s that should be faster BUT the engine isn't making any horsepower over 6300 anyway so who knows.

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I have over 1000 passes on my motor and need to watch for dry rot on tires instead of check holes lmao. Pump gas is also nice for bracket racing

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Pat told me the new Diamond piston (80077) is also a flat top. Not sure why two Diamond flat top pistons are needed. I e-mailed Diamond but they haven't responded to my inquiry.

Sam, are you running the "high top" BBD 1-1/4" on your 318? Somewhere around 1973/4 they switched to the "high top" air horn casting but also switched to AFB jets which would be nice. The change was for emissions to seal around the accelerator pump better and pipe it off to the canister.

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I'm running the earlier vacuum version. I had to get creative and make a set of jets for mine. Haven't tried the later version

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Interesting. So with all this talk about aftermarket heads and intakes on the mopars I decided to give this thread a new look. So what your saying is that it was approved, built and now it's no longer approved?? I do know that when I asked a few questions to pat about different year 318 intakes, i was told that they (68-71 and 73) are two different motors with different parts which is why they have different horsepower numbers. This was when all 318s were at 185 and the 69 was at 182.

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What rear, gear ratio are you running? Converter?

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Turbo action and the cargoes thru traps at 6100 in bad air and closer to 6500 at maple grove

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approx what stall on the converter?

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Zzz