Will the Buick 350 comp cam thumpr 279th7 will work with my 71 Buick 350 I know that it's 8:5:1 and it doesn't says what comprassion to work with and I'm just wondering if it would work with exhaust manifold til I buy me a pair of headers can some one help me out I want to go with a bigger cam and have better performance.my car has 2 1/2 inch flowmaster exhaust system and a 2,000 to 2,200 torque converter..
If I buy the TA 212 cam what do I all need to change..I know I have to buy a timing and lifters do I have to change anything else
Comp 268 has been used by many here quite successfully. They sell everything you might need either a la carte or in a kit. I think it may actually be less than the TA stuff too. Some here think it is an "old" type cam, but it's been doing well for a lot of years, and besides, if the motor is 40 years old, what difference would it make? Not saying the TA product wouldnt work, just that the Comp stuff has stood the test of time. Google them and give em a call. Decide for yourself.
I just trying a cheaper and easier route to put a cam in my motor I really like the thumpr 279th7 cam but I also like the TA 212 cam and i really want to know what do I all need to change it like I already know I have to buy a timing chain,lifts and cam and I'm wondering if taperformance makes a cam kit for a reasonable price. Should I buy valve springs or I don't have to
Springs wouldnt add much to the cost of all the other goodies in the kit. 40 year old springs might have lost their oomph over time, so why put all the other stuff in there only to not have everything working as it should? Springs by themselves add about $85.00. But the whole kit is only about $360. Here's an example: Part number 92-203-4 http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=41&sb=2
for what it's worth.......you put that thumper in a low compression motor and you WILL be sorry. Don't do it....It will sound great but a honda civic will kick your %$^ !
I'm just trying to have a good performance motor with the 8:5:1 because I'm don't have a lot of money I'm just trying to have a budget build I'm looking to have around like 300hp I know a 71 Buick 350v4 has like 260 I know its going to take money to do it.im just wanting some information and some other advice about what cam should I go with I really want a TA cam but I'm looking at comp cams and see if I find something better for a lil cheaper..
Really not trying make anything of it ,,, what you really need to do is ask yourself...what do I want to get out of this car ? Start with that and there are alot of people here that can help you. Just hate to see people think that one or two parts are really going to make it all work. Start with....Do I want a daily driver ?...How many miles am I going to drive this car every day ?....Do I want to drive high rpm or low rpm ?. Put these answers out there and you will get great advice.
I wouldn't do the Thump'r or the TA288. With only 8.5:1 you need to build cylinder pressure in order for it to run well and make a bang, no cylinder pressure, no bang. I offer custom grinds if you're interested, $275.00 cam and lifters to your door. I'm sure we can come up with something, but I need to tell you it's a bit tougher to do what you want with that low compression ratio.
I would put in the TA 212 cam. This is the best cam to put in for a 8.5 comp mild build. Anything else will require more work and the engine will not have the power you expect. Also supporting TA will help with more 350 parts. Get the whole kit with the springs and all that. Get a new set of rockers and shafts normal pushrods for stock engine. You will be fine here with this. Don't make it harder than it is. ---------- Post added at 09:22 AM ---------- Previous post was at 08:43 AM ---------- The comp cam will be too big unless you do some more work on the heads like some porting. 227-241 @ 50 is too much for a stock engine The TA cam is at 218 227 @50 and is recommeneded for 9.0 comp You will need at least that or more for the Comp Cam. I ran the 268 Comp cam, it was nice but it took to over 2500 rpm to get going. It is a very old design I bought it in 1983. Checked some prices too TA cam 185.00, Comp 192.00, TA spring 75.00 Comp 69.00, Valve seals TA 12.00-25.00 Comp 23.00, stock push rods TA 40.00 Comp 35.00, Lifters TA 79-85.00 Comp 91.00, Timing chain TA 20-60.00, Comp 27.00, steel Rocker shaft kit TA 155.00. Not much difference in prices in the two companies. I would support TA, at least this way they will give you help when you need it and this will help them develop more parts for the 350. ---------- Post added at 09:22 AM ---------- Previous post was at 09:22 AM ---------- The comp cam will be too big unless you do some more work on the heads like some porting. 227-241 @ 50 is too much for a stock engine The TA cam is at 218 227 @50 and is recommeneded for 9.0 comp You will need at least that or more for the Comp Cam. I ran the 268 Comp cam, it was nice but it took to over 2500 rpm to get going. It is a very old design I bought it in 1983. Checked some prices too TA cam 185.00, Comp 192.00, TA spring 75.00 Comp 69.00, Valve seals TA 12.00-25.00 Comp 23.00, stock push rods TA 40.00 Comp 35.00, Lifters TA 79-85.00 Comp 91.00, Timing chain TA 20-60.00, Comp 27.00, steel Rocker shaft kit TA 155.00. Not much difference in prices in the two companies. I would support TA, at least this way they will give you help when you need it and this will help them develop more parts for the 350.
I see this from several TA followers. What does it mean? Has the needs of a 40 yr old Buick 350 changed? Why was it fine then but now it is "an old design"?
It all has to do with Dynamic Compression. An engine does not run at the advertised or static compression ratio. The valve timing, or more specifically, the intake valve closing point determines dynamic compression. The intake valve always closes when the piston is on it's way up the cylinder on the compression stroke. You can't build any compression at all until the intake valve closes. An early closing builds more cylinder pressure, a late closing, less cylinder pressure. Higher static compression is needed to run bigger cams that have later intake valve closing. That is why you see a minimum compression ratio in cam descriptions. Lower compression ratios want a smaller cam to keep the dynamic compression in the desirable range of 7.5 - 8.4. Read more here. http://www.empirenet.com/pkelley2/DynamicCR.html
I think you need something in the 215 int-230 exh @050 on a 110sep/installed at 106 c/l to build some low end cylinder pressure The large split will allow the motor to breathe better upstairs and still maitain good bottom end,also working well with teh poor factory exhaust ports
Back then that was the only cam available for the 350. I did not even now of Ken-Bell at the time. The 212 cam might even be a little large for the 350, He may have to step down one more notch if the engine is at 8.5 comp. Staying at about 210 int@050 might be the best bet and keeping the large split will be a good idea also, that works better in a stock Buick engine. The Comp cam is a 218-218 cam @050 469 lift, it is basically a Chevy cam. If you port the heads some and bump the comp up over 9.5 then you might be able to go for the 284 88H cam mentioned earlier. ---------- Post added at 02:11 PM ---------- Previous post was at 02:11 PM ---------- Back then that was the only cam available for the 350. I did not even now of Ken-Bell at the time. The 212 cam might even be a little large for the 350, He may have to step down one more notch if the engine is at 8.5 comp. Staying at about 210 int@050 might be the best bet and keeping the large split will be a good idea also, that works better in a stock Buick engine. The Comp cam is a 218-218 cam @050 469 lift, it is basically a Chevy cam. If you port the heads some and bump the comp up over 9.5 then you might be able to go for the 284 88H cam mentioned earlier.
