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Making Power: Project Number Cruncher’s SAM Tech-Built Top End

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Old 07-08-2021 | 09:49 PM
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Default Making Power: Project Number Cruncher’s SAM Tech-Built Top End

They Cheated Us With this Lame as Cam. The Short block was Done months ago..

Good Read....



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https://www.dragzine.com/tech-storie...built-top-end/
Old 07-09-2021 | 09:56 AM
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What’s wrong with the cam? Same duration and LSA I picked for mine but I have .774/.756” lift.

What compression did they run? My 427 will be 12.5:1…

I see a small dome on their pistons but the valve pockets are pretty big. Maybe a +3cc overall?

Last edited by spanks13; 07-09-2021 at 11:40 AM.
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Old 07-09-2021 | 01:46 PM
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Originally Posted by spanks13
What’s wrong with the cam? Same duration and LSA I picked for mine but I have .774/.756” lift.

What compression did they run? My 427 will be 12.5:1…

I see a small dome on their pistons but the valve pockets are pretty big. Maybe a +3cc overall?
.680 or so Lift? ....Fill the Cylinder 😭

​​​​​they Never said the Compression..I'll go find the Short block Build...

780 is and Was Shown and it Looks tooo Damn Easy. Reason I didn't like the cam Lift 🤣

800fwhp was Right there, I can see it with a bit More Lift..


side 🎵 note.

Saddest Day in America for the Godzilla fan Club and there Factory Port 😢 on YB. I hated to do it 🤣 as I like a good Fight.. poor Zilla needs Forced Induction or a Aftermarket head.
👇


Old 07-09-2021 | 05:22 PM
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Spanks I'm gonna go with your Compression thought of 12.5 as it Avg's out with a 427 I know of with More lift, Less compression Smaller 105 TB.


They give us Nothing but we Know....

​​​​​​https://www.dragzine.com/tech-storie...t-short-block/
Old 07-09-2021 | 05:29 PM
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With what I'm at .....lift Is my Only Friend... But Hear it can Really do Wonders. Compression is set in Stone @ 12.2...

408 cubic inches....
Goal of Match - out Do teacher With Rules...750 was the Normal minimum And the Championship. He had Rules ....

+ 1 for me on Size and Compression. He Taught me Well.

That 790 fwhp 418 higgin ls7 Build is looking Touchable I know it had 13.1+ Comp...


Cam LIft...👍

Last edited by Corona; 07-09-2021 at 05:39 PM.
Old 07-11-2021 | 10:28 AM
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Spanks ...here's a Thinker. Convert this into a LS?
I'm sure you get the idea... Was just searching on the phone and this popped up... I looked to see it Wasn't Bookmarked... 😲 What? And it's a old conversation, I'm Slipping or my Searches..

https://frontstreet.media/2020/01/31...akes-778-rwhp/



Little more digging..

https://www.corvetteforum.com/forums...-gen-v-lt.html


Good read...
Old 07-12-2021 | 10:20 AM
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Was talking to my Lil Brother TJ in Vegas.... He's now doing a 416-418. I haven't pressed him on his thought.. But told him I've come up with Something for a bored person like me to do.... That doesn't cost Much? Can I get a Larger Intake valve Than what's seen or Known same bore size. Sent this pic and TJ says ....You got something. Figure 2.220 to 2.230 all Dependant on Valve weight with a Hollow stem @ 5.5+ inches long. I've got a 2.20 Manley 5.4 long Hollow stem test valve.

Maybe buy a valve and see...STR8 Head used a 2.250 valve @ a 11 degree angle. If I knew the valve spacing and it's points.... Just buy a 2.250 valve and size it and or cut it down to a Clearance free size... 2.225 Would be nice.


This is Cole testing a Ls7 head on a 4.065 bore....
I've Shrunk the Exhaust... .035 bore Difference 😴
The intake Has more than Enough for a .020 - .025 valve increase VS a 2.20 valve.
IDK but will see.
Old 07-12-2021 | 10:30 AM
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Figure the "Cam"edit, intake valve closing Point would like to be around 60 to 62 with a Intake valve this Large.
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Last edited by Corona; 07-12-2021 at 10:43 AM.
Old 07-12-2021 | 12:19 PM
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Called my Guy @ Manley and 👍Perfect...
manley part # 11270H" = Hollow

Close but Know Cigar 👇👎

https://www.summitracing.com/search/...h-mm/142-200mm



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