How much HP to run low 7's - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ProStreet71 · 01-18-2009, 09:07 PM

Hello to all.... new to the forum. Great site by the way!
I have a 71 swb prostreet truck with a 406. I'm guessing my truck weighs in the neighbor hood of 3900 lbs. How much HP would it take to run 7.0's in the 1/8?

ton*loc · 01-18-2009, 11:20 PM

7's flat takes 591.95hp

ProStreet71 · 01-19-2009, 12:07 AM

Thanks tonloc. Looks like i better go ahead and up grade my heads. Maybe the AFR 210's will get me a little closer. I will be happy if i can get this thing down in the low 7's. I have a 406 with Scat rotating assembly, 11.4:1 comp., Motown 220 heads, Comp XE292 solid roller, Team G 2" raised plenum intake, QuickFuel 850, 1 3/4 headers.
Here is a pic with a Dominator that i had for it but changed for streetability

djracer · 01-19-2009, 01:08 PM

if you still have the intake in the picture you will need a wilson adapter plate to a 4150 with the nitrous bars to run 7.00.

Super73 · 01-19-2009, 02:22 PM

Check out the engine analyzer thread and put all your motor/truck info in. It's pretty darned close..

ProStreet71 · 01-19-2009, 08:13 PM

Thanks Super73.... I will get those specs to you asap. I dont think i am to awful far from my goals. I know my current heads are holding me back a bit. There is a 79 truck at our local track in full trim, stock suspension with cal-tracks. this truck had everything it came with from the factory except A/C and runs 7.02 consistantly on a 10" tire all motor with a 406. This is the truck that started it all for me. He just put a 434 in it but hasnt got the bugs worked out yet. Cant wait to see what that truck will do this spring when the track opens up. Thanks to all that posted!

383 Stroker · 01-21-2009, 01:35 PM

It takes a 383 with a 200shot of nitrous for my truck to run low 7's. That's real world results. But anything is possible on the internet...

01-18-2009, 09:07 PM	#1
ProStreet71 Registered User Join Date: Sep 2008 Location: Huntingdon,TN Posts: 95	How much HP to run low 7's Hello to all.... new to the forum. Great site by the way! I have a 71 swb prostreet truck with a 406. I'm guessing my truck weighs in the neighbor hood of 3900 lbs. How much HP would it take to run 7.0's in the 1/8?

01-18-2009, 11:20 PM	#2
ton*loc Registered User Join Date: Feb 2008 Location: sioux city iowa Posts: 178	Re: How much HP to run low 7's 7's flat takes 591.95hp __________________ 1986 chevy c10 in the "build" process as we speak 358 flat tops, vortec heads, .500 lift cam, NOS power shot plate system, yada yada yada MMA PIX http://www.clgpix.com/MMA/Fighters/F...C/CoteTony.htm MMA RECORD 24-5

01-19-2009, 12:07 AM	#3
ProStreet71 Registered User Join Date: Sep 2008 Location: Huntingdon,TN Posts: 95	Re: How much HP to run low 7's Thanks tonloc. Looks like i better go ahead and up grade my heads. Maybe the AFR 210's will get me a little closer. I will be happy if i can get this thing down in the low 7's. I have a 406 with Scat rotating assembly, 11.4:1 comp., Motown 220 heads, Comp XE292 solid roller, Team G 2" raised plenum intake, QuickFuel 850, 1 3/4 headers. Here is a pic with a Dominator that i had for it but changed for streetability

01-19-2009, 01:08 PM	#4
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,891	Re: How much HP to run low 7's if you still have the intake in the picture you will need a wilson adapter plate to a 4150 with the nitrous bars to run 7.00. __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

01-19-2009, 02:22 PM	#5
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: How much HP to run low 7's Check out the engine analyzer thread and put all your motor/truck info in. It's pretty darned close.. __________________ ------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

01-19-2009, 08:13 PM	#6
ProStreet71 Registered User Join Date: Sep 2008 Location: Huntingdon,TN Posts: 95	Re: How much HP to run low 7's Thanks Super73.... I will get those specs to you asap. I dont think i am to awful far from my goals. I know my current heads are holding me back a bit. There is a 79 truck at our local track in full trim, stock suspension with cal-tracks. this truck had everything it came with from the factory except A/C and runs 7.02 consistantly on a 10" tire all motor with a 406. This is the truck that started it all for me. He just put a 434 in it but hasnt got the bugs worked out yet. Cant wait to see what that truck will do this spring when the track opens up. Thanks to all that posted!

01-21-2009, 01:35 PM	#7
383 Stroker Registered User Join Date: Aug 2001 Location: Jesup, GA Posts: 571	Re: How much HP to run low 7's It takes a 383 with a 200shot of nitrous for my truck to run low 7's. That's real world results. But anything is possible on the internet... __________________ Video's of my Truck Racing 1967 C-10, 383ci Sbc, TH350, 3200 stall, 3.73 gear



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