Both of you, knock it off. You are both being awfully childish and it is not called for.

 

Go ahead. I'm sure you have them saved in your favorites. I myself am going to bed. Goodnight sweet prince.

 

He's touching me........MOM He's touching me...........

 

dude
i have a girlfriend.

 

Wow...really nice, guys...thanks for probably driving away a new member who just wanted some info. First of all, whether he posted here or in the engine-specific forum is not important, he should still be able to get the info he needs in either place without all the BS he's been handed along with it. A simple click of the "Report Post" button will alert us to the post and WE can determine if it needs moving or not, without the little jabs about posting in the wrong forum. Just knock that off in the future, hmmm?

As for the personal attacks on each other, that needs to stop as well. And no one needs to take it upon themselves to try and "right the wrongs". Again, I direct your attention the the "Report Post" button and WE will take care of it. Also, the language filters are in place for a reason, as this is a family-friendly site...so if you type language that trips the filters and replaces the words with asterisks, you might want to consider not posting that word...

As for the original post by twz55 in this thread, (provided he's not already gone for good in pure disgust, for which I couldn't blame him a bit) first I'd like to offer an apology for the above display and give a belated welcome, and second I'll take a stab at the question you asked. Odd fire and even fire are terms that only relate to a V6 and are not applicable to an inline 6 such as the Ford 300. As far as I know, it's GM terminology and only relates to a very few certain models as pointed out above, so if MSD's site is asking which one, you'd do best to stay with even-fire. However, in looking over their site I notice that the 300 comes up as a V8 (which must be a typo on their part). I also wonder about your intended use, as the 7AL-2 seems to be pretty much a drag race-only ignition system, so if you're planning this for a street truck it might not be the best choice. If you are indeed planning to drag race it, I wanna see pics!

 

I think your best bet would be to ask MSD the number is below.
MSD Tech Line: 915-855-7123
You could ask in the Inline six forum, you will get a better answer with out all the noise.
-Johnboy

 

from wiki...

"Odd and even firing

Many older V6 engines were based on V8 engine designs, in which a pair of cylinders was cut off the front of V8 without altering the V angle or using a more sophisticated crankshaft to even out the firing interval. Most V8 engines share a common crankpin between opposite cylinders in each bank, and a 90° V8 crankshaft has just four pins shared by eight cylinders, with two pistons per crankpin, allowing a cylinder to fire every 90° to achieve smooth operation.
Early 90° V6 engines derived from V8 engines had three shared crankpins arranged at 120° from each other, similar to an inline 3-cylinder. Since the cylinder banks were arranged at 90° to each other, this resulted in a firing pattern with groups of two cylinders separated by 90° of rotation, and groups separated by 150° of rotation, causing a notorious odd-firing behavior, with cylinders firing at alternating 90° and 150° intervals. The uneven firing intervals resulting in rough-running engines with unpleasant harmonic vibrations at certain engine speeds.
An example is the Buick 231 odd-fire, which has a firing order 1-6-5-4-3-2. As the crankshaft is rotated through the 720° required for all cylinders to fire, the following events occur on 30° boundaries:
Angle 0° 90° 180° 270° 360° 450° 540° 630°
Odd firing 1 6 5 4 3 2
Even firing 1 6 5 4 3 2
More modern 90° V6 engines avoid this problem by using split crankpins, with adjacent crankpins offset by 15° in opposite directions to achieve an even 120° ignition pattern. Such a 'split' crankpin is weaker than a straight one, but modern metallurgical techniques can produce a crankshaft that is adequately strong.
In 1977, Buick introduced the new "split-pin crankshaft" in the 231. Using a crankpin that is 'split' and offset by 30° of rotation resulted in smooth, even firing every 120°. However, in 1978 Chevrolet introduced a 90° 200/229 V6, which had a compromise 'semi-even firing' design using a crankpin that was offset by only 18°. This resulted in cylinders firing at 108° and 132°, which had the advantage of reducing vibrations to a more acceptable level and did not require strengthening the crankshaft. In 1985 Chevrolet's 4.3 (later the Vortec 4300) changed it to a true even-firing V6 with a 30° offset, requiring larger crank journals to make them adequately strong.
In 1986 the similarly-designed 90° PRV engine adopted the same 30° crankshaft offset design to even out its firing. In 1998, Mercedes-Benz introduced a V6 engine that not only had split crankpins, but had a counter-rotating balancing shaft between the cylinder banks to eliminate almost all primary and secondary vibrations, resulting in a very smooth-running engine"


also check out:
http://home.off-road.com/~merls_garage/oddfire.html
for more odd fire info

 

OIC, thanks! I've never owned either a V6 nor a GM product so I guess that explains
why I don't remember those terms.

 

Had to be said so someone would take notice and well, you did. Thanks.

 

My point was that it didn't have to be said...at least not in open forum. Hit the "Report Post" button and say it there, that's what gets our attention. It's what got our attention in this case as someone finally did so...

 

I stand behind what I said. When you call someone out they tend not to do it anymore. I'm not for public humiliation but enough was enough. I've seen abuse of new users asking simple questions. If your new, everything is new to you. Just be nice and considerate that's all I was asking. Sorry for the language. The End.