Odd or Even fire V-6

Rick Angles · 01-19-2011, 01:42 PM

Ok, I will bring it over here, since I got it started in another thread. My Starfire is a '77, original 305/auto. I had a '75 parts car with a 231 odd-fire V-6. Am I wasting my time with the odd fire? Or look for a 77 even fire and not worry about changing the nose on the car to make it look like a 75?

I thought I would start out with the v-6 first, to have a little fun and see how things go before looking into putting the 305 back in. With the V-6, I would fall in the V/SA class and should be fun for a beginner.

Thoughts?

Owen S Quirion · 01-19-2011, 04:17 PM

Quote:

Originally Posted by Rick Angles

Ok, I will bring it over here, since I got it started in another thread. My Starfire is a '77, original 305/auto. I had a '75 parts car with a 231 odd-fire V-6. Am I wasting my time with the odd fire? Or look for a 77 even fire and not worry about changing the nose on the car to make it look like a 75?

I thought I would start out with the v-6 first, to have a little fun and see how things go before looking into putting the 305 back in. With the V-6, I would fall in the V/SA class and should be fun for a beginner.

Thoughts?

Rick, I would swap an even fire crank and cam into the block that you have. I don't have a rulebook in front of me but I think it is legal. If it is, I would get the crank out of one of the later EFI cars that has the factory crank trigger ignition as well. I run an even fire Buick V6 in my car and the balance job works good. I have never had any problems with the crankshaft and I buzz it pretty good.

Bench Racer · 01-19-2011, 08:11 PM

Rick I played with an odd fire 231buick 25+ years ago. One of the issues you will run into with the odd fire is the rocker pedastals. They are cast aluminum and crack with a strong stare. Back then they were no longer available from the dealer and if one broke while tightening it down you had to scour junk yards to find a rocker shaft that had a good one. They could easily be made in a machine shop and with no performance advantage over the originals I bet they still would not pass tech. If memory serves me the even fire heads have the rocker pedastals cast into the head. Don Jackson

01-19-2011, 01:42 PM	#1
Rick Angles Member Join Date: Dec 2006 Location: Circleville,Ohio Posts: 113 Likes: 0 Liked 0 Times in 0 Posts	Odd or Even fire V-6 Ok, I will bring it over here, since I got it started in another thread. My Starfire is a '77, original 305/auto. I had a '75 parts car with a 231 odd-fire V-6. Am I wasting my time with the odd fire? Or look for a 77 even fire and not worry about changing the nose on the car to make it look like a 75? I thought I would start out with the v-6 first, to have a little fun and see how things go before looking into putting the 305 back in. With the V-6, I would fall in the V/SA class and should be fun for a beginner. Thoughts? __________________ Rick

01-19-2011, 08:11 PM	#3
Bench Racer Member Join Date: May 2002 Location: Green Creek (Tryon) North Carolina Posts: 331 Likes: 69 Liked 99 Times in 21 Posts	Re: Odd or Even fire V-6 Rick I played with an odd fire 231buick 25+ years ago. One of the issues you will run into with the odd fire is the rocker pedastals. They are cast aluminum and crack with a strong stare. Back then they were no longer available from the dealer and if one broke while tightening it down you had to scour junk yards to find a rocker shaft that had a good one. They could easily be made in a machine shop and with no performance advantage over the originals I bet they still would not pass tech. If memory serves me the even fire heads have the rocker pedastals cast into the head. Don Jackson