707 HP 402 Build On Youtube - Chevelle Tech
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post #1 of 43 (permalink) Old Feb 12th, 17, 5:42 PM Thread Starter
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707 HP 402 Build On Youtube

Thought you guys might be interested in this one.
https://youtu.be/-41BF4EvJ2U
aukai, horton409, oliver69 and 2 others like this.

Do the work....get the results
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post #2 of 43 (permalink) Old Feb 12th, 17, 5:49 PM
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Re: 707 HP 402 Build On Youtube

Healthy

YOU KNOW YOU HAVE THE POWER..... AND IF YOU USE THAT POWER BAD THINGS ARE GOING TO HAPPEN!!

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post #3 of 43 (permalink) Old Feb 12th, 17, 6:29 PM
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Re: 707 HP 402 Build On Youtube

On that note...

I was looking at the latest hot rod magazine that features two EMC BBC builds. For some reason, both builders are running 396/402 blocks with < 4.25" bore and using a 4.25" crank to arrive at ~470 c.i. This is the class that required builders to use Edelbrock 100cc heads.
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post #4 of 43 (permalink) Old Feb 12th, 17, 8:03 PM
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Re: 707 HP 402 Build On Youtube

-
---
------
---------- UMMMMM,,,,,



-------OK......






.
71350SS and horton409 like this.

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post #5 of 43 (permalink) Old Feb 12th, 17, 9:35 PM Thread Starter
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Re: 707 HP 402 Build On Youtube

Quote:
Originally Posted by Wolfplace View Post
-
---
------
---------- UMMMMM,,,,,



-------OK......






.
I knew you would like that. The delusion of automotive.
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post #6 of 43 (permalink) Old Feb 12th, 17, 10:24 PM
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Re: 707 HP 402 Build On Youtube

Um...y'all need to peruse their other videos.

Wow.

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post #7 of 43 (permalink) Old Feb 12th, 17, 11:36 PM
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Re: 707 HP 402 Build On Youtube

happy dyno hor$e $hit going on here
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post #8 of 43 (permalink) Old Feb 13th, 17, 1:30 AM
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Re: 707 HP 402 Build On Youtube

I guess you can't believe everything you see posted on the internet I take it.
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post #9 of 43 (permalink) Old Feb 13th, 17, 4:48 AM
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Re: 707 HP 402 Build On Youtube

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post #10 of 43 (permalink) Old Feb 13th, 17, 6:34 AM
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Re: 707 HP 402 Build On Youtube

Damn, knew I missed the boat somewhere

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post #11 of 43 (permalink) Old Feb 13th, 17, 6:49 AM
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Re: 707 HP 402 Build On Youtube

Oh man, I really wanted to see one. I was thinking this will be cool. Then as soon as I saw the numbers posted at the beginning of the video, I was thinking Is this a joke?? And yeah it was.
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post #12 of 43 (permalink) Old Feb 13th, 17, 9:51 AM
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Re: 707 HP 402 Build On Youtube

Quote:
Originally Posted by Vintage Musclecar View Post
Um...y'all need to peruse their other videos.

Wow.
Yeah.... I see what you mean....

Just a 'bit' of exaggeration on hp numbers on almost all of their dyno vids...
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post #13 of 43 (permalink) Old Feb 13th, 17, 10:46 AM
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Re: 707 HP 402 Build On Youtube

So I know we don't get the specs of this engine, but what do you people "think" this motor make? I see corrected and uncorrected on the sheet.

402 with 11-1, hyd roller cam???? 702 heads with 219/188 valves with some work, holley 750?

We have for some comparisons:

Joe Sherman's 9.75 to 396 that went 557Hp,

now I made a thread about this one, yet no one seemed to dispute it.
Super Chevy's 396 Build, 10.25 to 1 with a 750 Holley made 577Hp, How to Increase Horsepower -Super Chevy Magazine

Our very own Mark Jone VORTEC PRO L-78396/375 build made 452Hp, 1969 L78 396 375 HP Dyno Test

Chris Struab 10 - 1 396 with OEM 702 and hyd roller and 750 made 450+Hp, now there are others in this thread, Vigg, that also had a 396, UNPORTED 702 head, solid roller with 10 - 1 and 750 and made 511Hp 10 to 1 396 with 702 GM heads

My old 396. NEVER dyno'ed but ran at the track ONCE in 1/4 to 10.47 @ 3300, and about 15 - 6.40 passes in the 1/8. I figure that was about 550-575 range.

Reason is, I want to do a 600+Hp (601 or better LOL) 396/402 based engine. I would like to use OEM heads and block. I think I'm going to get there and I have heard from both Gary in NY and Mark Jones that BOTH have done it and BOTH have 396/402's that have been over 700, so there is some HOPE.


Mine is as follows:

- 402 short block ('72 4 bolt block built to L-78 specs. , standard bore, GM crank and rods, ARP bolts, TRW 11.5-1's)
- PORTED '69 215 heads, 2.19/1.88, flow right at 325 @ 700
- Holley Strip Dom intake, or 454-O (as per Marks recommendations)
- Bullit SR .710/.710, 264/274 on 106Cl 108 LS
- reworked Holley 830


Now I'm not saying this is one of those REAL 700Hp 396/402's, just wondering what you guys think this made and why from the info we were given. Is it a real 630Hp engine???

DISCUSS
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post #14 of 43 (permalink) Old Feb 13th, 17, 11:55 AM
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Re: 707 HP 402 Build On Youtube

I don't pretend to know anything about potential HP for these, but adding %12 for 1,400' elevation sound right? My guestimate would be well under %5, more like %2-%3.

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post #15 of 43 (permalink) Old Feb 13th, 17, 1:43 PM
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Re: 707 HP 402 Build On Youtube

[QUOTE=EZ Nova;9552225]So I know we don't get the specs of this engine, but what do you people "think" this motor make? I see corrected and uncorrected on the sheet.

402 with 11-1, hyd roller cam???? 702 heads with 219/188 valves with some work, holley 750?

We have for some comparisons:

Joe Sherman's 9.75 to 396 that went 557Hp,

now I made a thread about this one, yet no one seemed to dispute it.
Super Chevy's 396 Build, 10.25 to 1 with a 750 Holley made 577Hp, How to Increase Horsepower -Super Chevy Magazine

Our very own Mark Jone VORTEC PRO L-78396/375 build made 452Hp, 1969 L78 396 375 HP Dyno Test

Chris Struab 10 - 1 396 with OEM 702 and hyd roller and 750 made 450+Hp, now there are others in this thread, Vigg, that also had a 396, UNPORTED 702 head, solid roller with 10 - 1 and 750 and made 511Hp 10 to 1 396 with 702 GM heads

My old 396. NEVER dyno'ed but ran at the track ONCE in 1/4 to 10.47 @ 3300, and about 15 - 6.40 passes in the 1/8. I figure that was about 550-575 range.

Reason is, I want to do a 600+Hp (601 or better LOL) 396/402 based engine. I would like to use OEM heads and block. I think I'm going to get there and I have heard from both Gary in NY and Mark Jones that BOTH have done it and BOTH have 396/402's that have been over 700, so there is some HOPE.


Mine is as follows:

- 402 short block ('72 4 bolt block built to L-78 specs. , standard bore, GM crank and rods, ARP bolts, TRW 11.5-1's)
- PORTED '69 215 heads, 2.19/1.88, flow right at 325 @ 700
- Holley Strip Dom intake, or 454-O (as per Marks recommendations)
- Bullit SR .710/.710, 264/274 on 106Cl 108 LS
- reworked Holley 830


Now I'm not saying this is one of those REAL 700Hp 396/402's, just wondering what you guys think this made and why from the info we were given. Is it a real 630Hp engine???

DISCUSS[/Q are you talking abought a stock 396 running 6.40s in the 1/8 , tell us your combo
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