It must be cam selecting season! I am interested in using a GS 113A cam with a set a low compression 1972 455 pistons. My block is a 1972 as well. I was wondering if anybody is using this cam with low comp. pistons? what are you combos as well as power results? My goal is to get my 1979 T/A into low 13s high 12s. I think my pistons and rings (I have did a compression or leakdown test, yet) are fine; there is no smoke coming from my exhaust. I am trying to keep the cost of rebuild in the $3000-$3500 range. Thanks for your advice :TU:.
I have a 73 motor with 71 heads and a GS113(It pulls great). I tried the 113a, it doesn't work well with low comp. Run the 113 with regular lifters(no Roads), a good intake and stage 1 valves or ported head(if affordable). hope this helps
I believe I ran my gs113 with crane high intensity lifters, used rhodes with my gs118 and didn't like the noise, cranes tick but not as loud. Anyway why do you not recommend rhodes and whats your opinion, or anyone's opinion on using the gs113 with crane high intensity lifters. I have 10:1 forged pistons, don't know what actual compression works out to.
Hello, Years ago I ran a GS 113 cam in a stock 72 455 with headers and B4B and tiny stock dual exhaust on Fleet-farm 275-60-15 tires and 3.30 gears in a 72 skylark with a switchpitch trans leaving in low stall so not to kill the tires in a street class at my local track and it would run in the 13.40-13.50 range. I took 5th in points in that class that year, I had lots of fun back then getting to know Buicks. This was in 1995. Tom
Were your heads stock and what type of manifold would you recommend? I had my transmission rebuilt with a shift kit and a 2500 stall. Will that work?
I'm running the 113A cam and love it. I degreed it now and it is installed at 110 degrees (straight up is 109 degrees). Car idles at 800 in park, about 650-700 in gear. Engine has a definite lope, but nothing harsh or tooth-rattling. I do have 10.0 to 1 compression. Along with my SP1, holley 950 HP, TA lifters, '67 430 heads w/stage 1 valves, th400 with 2500 stall converter and 3.73 rear. I'm putting a new, 3400 stall converter in tomorrow. Maker, Edge Racing Converters in California, swears I'll knock at least two tenths off my time, and that SHOULD put me in the high 11's, I hope. My car, on a diet, weighs about 4150 lbs. with me in it. That is with 26" ET Drags.
I'm running the 113A in my 462 with 10/1 pistons and Jim Burek ported heads and the other basic goodies. If you use it, or any other cam for that matter, be sure to degree it in to get it setup right. I didn't do mine now I wish I had because I think it is too far advanced. Good cam though in my opinion. Mike D.
I couldn't agree more with degreeing Postons's cam. Mine was installed "straight up" and when I finally did degree it, I found it to be 6.5 degrees advanced. It did run OK, but degreeing it back to true straight up, 109 degrees, gained me a little on the ET and 2.6 mph at the end of the track. That was worht it for the price of a gasket set for the front. It now idles smoother, runs better and my idle rpm is down to 650-700 in gear and 800 in park. Almost factory specs.
Phil, I'm thinking about degreeing mine this winter with the engine in the car. I know you did this, how much work was it and was it worth it? Mike D.
Wasn't too bad. You do have to take the entire front of the motor off as well as the driver's valve cover. After that, it's pretty straight forward.
just curious as to why you need to run the 113 without the rhoads lifters when poston states in their catalog to use the rhoads lifters. Did you have a bad experience or find that you get more power with the regular lifters?
have had problems with all Buick lifters over the years. TA has a set that actually fix the leak down problem(colapsing lifters). I have them (10k so far) and not a tick, I would recomend them.
one other observation, seems olds and buick lifters carry the same part number (crane web site). Has anyone ever used lifters from any of the olds distributors in their buick?
They use different lifters, so I wouldn't buy any that say they use the same part number. They could be the wrong length, dia., or have the oil hole in the wrong place.
