496 to be DYNO'D! - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69GMC910 · 02-29-2012, 08:09 PM

It's being dyno'd in Colorado, and currently I'm on a drilling rig near Fort Nelson, British Columbia...

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Gobbles · 02-29-2012, 11:29 PM

Wooo BC!!

I bet it is cold up there right now

69GMC910 · 03-01-2012, 12:26 AM

I think its -18 and the wind is about 20km/hr... Brrrrrr!
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shawnt · 03-02-2012, 03:46 AM

With Mark Jones work ill guess 685 hp.
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shawnt · 03-02-2012, 03:47 AM

No port work by mark will be around 607-617
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stef85 · 03-02-2012, 03:24 PM

i say mid 500. and a little over that for tq.

69GMC910 · 03-02-2012, 03:44 PM

Yes, the heads are ported by Mark.
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69GMC910 · 03-02-2012, 11:01 PM

Here's the situation... Mark Jones' dyno is broken. Somethin about a servo or whatever.. It is currently being rebuilt, and should be ready for action either tomorrow or early next week. Here's hoping for big numbers!!!! I have a "guestimation" for hp, and so far a couple if guesses are within 15-20 of what I am hoping for! No matter what the final number is, it's going to be a monster compared to my backyard 383!!!
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mud.man.rj · 03-02-2012, 11:05 PM

I'm guessing in at 670hp/655tq, oh ya I'm right, oops to early.

69GMC910 · 03-02-2012, 11:11 PM

Lol!
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mud.man.rj · 03-02-2012, 11:16 PM

All I know is having a 460 in my 71 4x4 is way more fun than the 330hp 5.7 ever was, just cooks the 35" tires like crazy in 4whigh. Smiling all day when I drive the beast and it's only 525hp.

69GMC910 · 03-02-2012, 11:33 PM

Youtube "testin 496" It is that truck that made me want to do this!
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69GMC910 · 03-02-2012, 11:38 PM

Or just watch it here!

testin' out the 496 - YouTube

Super73 · 03-03-2012, 01:09 AM

Interested in seeing what it makes. Did he give you flow numbers on the ported heads? I used stock flow numbers.
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69GMC910 · 03-03-2012, 01:24 AM

Sorry. I have not requested that info yet... If you are familier with his work, you know he get's everything he can out of every head!

smoknbarrels · 03-03-2012, 02:21 AM

well being that I have nearly the same goodies on mine as yours does (I have eldelbrock heads instead) but same c.r. , manifold, carb, but slight milder cam then I've got...
so I will guess a solid 615hp if you got roller rockers... if not I'll say 599hp

smoknbarrels · 03-03-2012, 02:26 AM

oh yea, by the way, I am hovering at 630 horse... so you have some kinda reference.

69GMC910 · 03-03-2012, 02:26 AM

What does your combo make smoknbarrels? And where ya at in AB?!

shawnt · 03-04-2012, 07:58 PM

I say 685. Similar combo made 665 with no work but "hybrid" cam.

That video also made me want a 496 lol
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69GMC910 · 03-04-2012, 11:14 PM

Final answer? Are you gonna lock in that answer?!!! Lol! I hope his dyno is fixed tomorrow!! As soon as I get the results, they WILL be posted!!!
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djunkie · 03-04-2012, 11:37 PM

I'm guessing about 625hp. My 496 in my boat is 10.5-1. Ported afr 315's. Bigger hydraulic roller cam than yours and a victor jr with an 850 Holley made 661hp/615tq.
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djunkie · 03-04-2012, 11:43 PM

Schiada idling - YouTube

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69GMC910 · 03-04-2012, 11:48 PM

That sounds AWESOME!!!!
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smoknbarrels · 03-05-2012, 12:22 AM

Quote:

Originally Posted by 69GMC910

What does your combo make smoknbarrels? And where ya at in AB?!

I am near Edmonton... not sure what you mean - "what does my combo make?"

69GMC910 · 03-05-2012, 12:34 AM

You answered it at the same time as I asked it! 630hp! Noice! I'm in Beaumont...
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02-29-2012, 08:09 PM	#26
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! It's being dyno'd in Colorado, and currently I'm on a drilling rig near Fort Nelson, British Columbia... Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

02-29-2012, 11:29 PM	#27
Gobbles Registered User Join Date: Sep 2010 Location: British Columbia Posts: 484	Re: 496 to be DYNO'D! Wooo BC!! I bet it is cold up there right now __________________ Trevor "You already said spite"

03-01-2012, 12:26 AM	#28
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! I think its -18 and the wind is about 20km/hr... Brrrrrr! Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

03-02-2012, 03:46 AM	#29
shawnt Registered User Join Date: Sep 2008 Location: sulphur springs texas Posts: 141	Re: 496 to be DYNO'D! With Mark Jones work ill guess 685 hp. Posted via Mobile Device __________________ Shawn 85 SWB 7.39 @ 93 Best so far with 0 tuning Lesson in life: Never fry bacon naked!

03-02-2012, 03:47 AM	#30
shawnt Registered User Join Date: Sep 2008 Location: sulphur springs texas Posts: 141	Re: 496 to be DYNO'D! No port work by mark will be around 607-617 Posted via Mobile Device __________________ Shawn 85 SWB 7.39 @ 93 Best so far with 0 tuning Lesson in life: Never fry bacon naked!

03-02-2012, 03:24 PM	#31
stef85 Registered User Join Date: Mar 2012 Location: Houston TX Posts: 6	Re: 496 to be DYNO'D! i say mid 500. and a little over that for tq.

03-02-2012, 03:44 PM	#32
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! Yes, the heads are ported by Mark. Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

03-02-2012, 11:01 PM	#33
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! Here's the situation... Mark Jones' dyno is broken. Somethin about a servo or whatever.. It is currently being rebuilt, and should be ready for action either tomorrow or early next week. Here's hoping for big numbers!!!! I have a "guestimation" for hp, and so far a couple if guesses are within 15-20 of what I am hoping for! No matter what the final number is, it's going to be a monster compared to my backyard 383!!! Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

03-02-2012, 11:05 PM	#34
mud.man.rj Registered User Join Date: Dec 2011 Location: Creighton Sask. Canada Posts: 4,121	Re: 496 to be DYNO'D! I'm guessing in at 670hp/655tq, oh ya I'm right, oops to early.

03-02-2012, 11:11 PM	#35
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! Lol! Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

03-02-2012, 11:16 PM	#36
mud.man.rj Registered User Join Date: Dec 2011 Location: Creighton Sask. Canada Posts: 4,121	Re: 496 to be DYNO'D! All I know is having a 460 in my 71 4x4 is way more fun than the 330hp 5.7 ever was, just cooks the 35" tires like crazy in 4whigh. Smiling all day when I drive the beast and it's only 525hp.

03-02-2012, 11:33 PM	#37
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! Youtube "testin 496" It is that truck that made me want to do this! Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

03-03-2012, 01:09 AM	#39
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: 496 to be DYNO'D! Interested in seeing what it makes. Did he give you flow numbers on the ported heads? I used stock flow numbers. Posted via Mobile Device __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49

03-03-2012, 01:24 AM	#40
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! Sorry. I have not requested that info yet... If you are familier with his work, you know he get's everything he can out of every head! __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

03-03-2012, 02:21 AM	#41
smoknbarrels Registered Mail Join Date: Jun 2006 Location: Alberta, Canada Posts: 513	Re: 496 to be DYNO'D! well being that I have nearly the same goodies on mine as yours does (I have eldelbrock heads instead) but same c.r. , manifold, carb, but slight milder cam then I've got... so I will guess a solid 615hp if you got roller rockers... if not I'll say 599hp __________________ '67 chev 496, lwb to swb, bagged - pro street project



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03-03-2012, 02:26 AM	#42
smoknbarrels Registered Mail Join Date: Jun 2006 Location: Alberta, Canada Posts: 513	Re: 496 to be DYNO'D! oh yea, by the way, I am hovering at 630 horse... so you have some kinda reference. __________________ '67 chev 496, lwb to swb, bagged - pro street project

03-03-2012, 02:26 AM	#43
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! What does your combo make smoknbarrels? And where ya at in AB?! __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

03-04-2012, 07:58 PM	#44
shawnt Registered User Join Date: Sep 2008 Location: sulphur springs texas Posts: 141	Re: 496 to be DYNO'D! I say 685. Similar combo made 665 with no work but "hybrid" cam. That video also made me want a 496 lol Posted via Mobile Device __________________ Shawn 85 SWB 7.39 @ 93 Best so far with 0 tuning Lesson in life: Never fry bacon naked!

03-04-2012, 11:14 PM	#45
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! Final answer? Are you gonna lock in that answer?!!! Lol! I hope his dyno is fixed tomorrow!! As soon as I get the results, they WILL be posted!!! Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

03-04-2012, 11:37 PM	#46
djunkie Registered User Join Date: May 2011 Location: Lomita. Ca. Posts: 127	Re: 496 to be DYNO'D! I'm guessing about 625hp. My 496 in my boat is 10.5-1. Ported afr 315's. Bigger hydraulic roller cam than yours and a victor jr with an 850 Holley made 661hp/615tq. Posted via Mobile Device

03-04-2012, 11:48 PM	#48
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! That sounds AWESOME!!!! Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

03-05-2012, 12:34 AM	#50
69GMC910 MOTORHEAD! Join Date: May 2000 Location: Devon AB, Canada Posts: 849	Re: 496 to be DYNO'D! You answered it at the same time as I asked it! 630hp! Noice! I'm in Beaumont... Posted via Mobile Device __________________ 82 GMC High Sierra VortecPro 496 12 Bolt, 3.42's AFR 265 Holley 850 Performer RPM Air Gap Hooker 2455's TCI Turbo 400 Super Street Fighter TRRC 12 Bolt Eaton Posi Mark Williams Axles Cal-Tracs Hoosier 30x10.5 Radial Slick Full weight long box pickup Current best- 11.33@117mph

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