its in a stripped 85 regal w/th400 for the track only, motor is stock 72 455 but headers and big valve heads, will have elec fan/water pump, manual brakes/steering. would like to know what would be best, i like the rough sound but cant spend tons for all this rolloer rocker stuff, dont know the difference between roller and hydrolic, does it matter at the lower power level im at,dont want to get the wrong one. i do have an sp1 intake i was going to put on w/ bigger carb, would that change the selection of cam, thanks for the help, just hope to go fast.....!!! :rant:
Check out this thread: http://www.v8buick.com/showthread.php?t=102843 That 107 cam may be the way to go for you.
where would i buy that cam, found the kenne bell sit but was just superchargers, sounds like it would be perfect, i looked at postons and they only show that 107/118 not the kb107, are they still avail new???
the 107 cam i found from TA (not sure if its the same as the kb107 ) says needs notched pistons? i dont want to have to redo the motor, is there a difference..does the kb107 in the other thread need the notched pistons too?
You may want to contact Buick from that thread and see what he went with. It sounded like he was using a stock short block for his scab motor. Along with that, contact some of the guys that have used this cam from that thread.
I checked piston to valve clearance twice, just to be sure I wasn't missing something. With the Poston GS107 cam, completely stock 1976 short-block, and 1.6 ratio rockers, the clearance was HUGE. I will be running stock rockers (1.55) and felpro gasket...I'll have plenty of room, that's for sure. I did the clay method and made sure to cover the non-dished outer part of the piston too. I put the head on with no gasket, snugged up the bolts and tested it out on two different cylinders. Just make sure you check the clearance too, because if the cam is degreed off a bit, it might make a difference. The 107 had 4 degrees advance ground in, as is normal with that cam, plus 1.5 degrees more advance with my timing gear dots "straight-up"; I am at 101.5 intake centerline or 5.5 degrees advanced). I was planning on getting this thing running before Indy, but there are a few more things I'd like to do to the car before dropping the engine in. I just don't feel like "thrashing" to get ready for an event, like I would have in the past.
Any head work? If not, some version of the "107" cam is the way to go to make power. Gonna idle like 9.5 on the Richter scale. They don't call it the "window rattler" for nuttin' LOL
thats what i want...iron heads w/ the big valves, no head work that i know of, what 107 can i go with w/o nothed pistons and will be rough and loud, i think the postons 107 not the 107/118, ta's says needs nothched, but this is the postons im thinking of...455-430-400 GS Series Camshafts Sounds like the baddest cam on the street. The short lift (.473) and long duration produces an ultrawild "Window Rattling" lope. Gives .4 and 4 MPH and 45 horsepower over stock cam. Product Code: GS-107.. also i assume the the cam kit would be worth it??..
Don't know if anyone makes the exact same cam now, but the "classic" KB107 was 490/490 lift (I think) and somewhere in the 240s, I think, on .05 intake duration. (of course a 107 degree centerline.) I looked for an old KB catalog, but no luck...
I looked at two old KB catalogs. Their 107 used to be 0.473 and then in '91 became .499, said the profile was changed. The Poston catalog I'm looking at says check piston to valve clearances for their 107.
I'd have to dig thru my old KB cataloges to find the time frames, but, The KB107 originaly was .473, then became .490 for short period of time, then went to the .499, I have run all the versions, LOVED them all, running with out piston notches will be fine, BUT................keep the RPMS below 5,800, I didn't (many times), never bent a valve but, do have dents in the pistons(not a good idea with stock cast pistons) to prove it. Baddest sounding "street cam" there is, but with stock "72 compression, it probly won't be the fastest car out there. Just make sure you have a high e-nuf stall torque converter in the car or it will be no fun to drive. :Smarty:
Hey there JL. I was once running a 455 big block regal just like the one that you are talking about. In my first setup it was like yours except that I did not have big valves in the heads to start out with. I had a cast piston 70 455 with big port 430 heads on it, th400, 4.11 gear, TA 608 camshaft, b4b intake, holley carb, and 28x10 inch slicks. The car would run some 7.27 on the last pass on motor in the 1/8th of mile. I then tried a bunch of nitrous and tore the top off of the #1 piston.
The early KenneBell version of the 107 was a 240 262 @.050" duration with .473" lift. The poston GS107 is the closest thing to it now- 244, 264@ .050", about the same lift. TA's advertised specs seem different... Might be where they measure their advertised duration, but I wonder if the lobes are as aggressive as the Poston version (which is what you want in a low compression motor- fast lobes and a narrow lobe seperation angle). Listen to Mr. Stevens (I think his avatar says it all ) and make sure you have a good 3500 stall converter and at least 3.73 gears to make it work. You will have awesome power in the 3500 to 5400 range. Probably should be set up advanced 4-6 degrees. I would make sure the valve springs are upgraded and set up with the right seat pressure. This cam is aggressive. Also, it can be hard on rockers, so watch those. ________ Sick From Wellbutrin
