[Dragncar]

Originally Posted by performerrpm

i dont think i really need the brace for this ud solid roller im putting in....its only a 271/[email protected] which i think plenty have ran a cam in this range with no problems...but since i bought the brace for this block and figure this cam and one other i have is the biggest im gonna put in a stock block, the 2nd cam is slightly smaller but ill use it with the mega brace. all the rest of my stock blocks will use tamer cams.

however i may have got ahead of myself...im putting in .045 restrictors,all the galley holes are just under 1/4" perfect for the 1/4x20 tap i used. ive only done one side but then i started thinking maybe i should not have tapped the whole depth of the galley so that i can tighten it up against the bottom thread?

i started looking and seen where steve 25 recommended just that. you guys think red loctite will keep them in place? i was going to use it any way just for safe measure but now it seems like im gonna be relying heavy on it holding.

The @ .050 numbers by themselves do not mean a thing as far as being aggressive enough to break a lifter bore. What is the advertised @ .020 numbers from that cam ? Subtract one from the other and if you get 32 or larger its a more safe cam.
My cam was .265-.275 @ .050, does not sound aggressive right ? It was very aggressive, had a number of 29 and ended up with 34. Had it reground to .265-.274 which sounds about the same, but its not.
I just finished the season. I beat on the motor and it held up just fine . I am as quick as the Chevy Ford guys I race with but they all have race gas engines. Pontiac pump gas power baby !

[performerrpm]

Originally Posted by Dragncar

The @ .050 numbers by themselves do not mean a thing as far as being aggressive enough to break a lifter bore. What is the advertised @ .020 numbers from that cam ? Subtract one from the other and if you get 32 or larger its a more safe cam.
My cam was .265-.275 @ .050, does not sound aggressive right ? It was very aggressive, had a number of 29 and ended up with 34. Had it reground to .265-.274 which sounds about the same, but its not.
I just finished the season. I beat on the motor and it held up just fine . I am as quick as the Chevy Ford guys I race with but they all have race gas engines. Pontiac pump gas power baby !

i dont have the cam card for this cam, i only know that it ran best degreed in at 101.5° and the @ .050 specs. i also know it did ok in another stock block with no brace so hopefully the brace is just extra, that and if a cam change is done later it will hopefully be good to go

[RUDOLFSSON]

Here's an engine I'm doing for a friend, 1969 428 block.
I do this to all roller cam builds.

My own billet aluminum retainer sets:

8 mounting spots.

Huge surface area for epoxy (dykem area becomes epoxy area).

I finish grind them so they seat well at the most vulnrelable spots, that way I can preload these areas before the epoxy cures.

I have programs for both casting numbers 97X and 48X today.



Thanks,
Kris.