Thought id show you guys my 85 also - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rigon4 · 08-08-2009, 08:50 AM

It is a 1985 with a 502/th400 and 4.11 gears. It went throw a 400 already after 2500 miles ripped the bell off the thing so pulled it out an put a j.w. ultra bell on it with a b&m pan , shift kit and 2400 stall. Than i bought a 4 inch harwood bolt on hood and new tires all the way around the thing. They are mickey thompson sportsman s/r's 26x8-15 front and 29x15-15s rear

What do you think it would run 1/4 mile time

502 ci 450hp-550tq
th400 with 2400 stall
4.11 rears with posi

rigon4 · 08-08-2009, 08:52 AM

some pics

bigbadjohn84 · 08-10-2009, 08:40 PM

um, just a guess. maybe 12.5 or 13. depending on if you had any traction off the line. those are street tires

BossHogg69 · 08-11-2009, 10:15 AM

yeah, I was thinking low 13's too.

btw, where are the motor pics?!

'72customdeluxe · 08-11-2009, 06:37 PM

You need some e/t streets or nitto 555's or something for when you want to go fast. My poorly tuned stock 350 in my last truck with 3.08 gears would spin the crap out of ONE of them. They were 26x12 Mickey Thompson s/r's like you have. So I imagine with a 502, a nice converter and 4.11's it will demolish them, even though they are wider and you have a limited slip. Those do look good though. You just might need some stickies to get it going anywhere

rookierodbuilder · 08-11-2009, 09:59 PM

I would agree with the 12.5-13 second guesses. for another thing, with the leaves alone, you will have axle wrap issues which will also plague your times. get some slappers along with the stickies and hope it hooks like hell!

08-08-2009, 08:50 AM	#1
rigon4 Registered User Join Date: Mar 2006 Location: east syracuse ny Posts: 371	Thought id show you guys my 85 also It is a 1985 with a 502/th400 and 4.11 gears. It went throw a 400 already after 2500 miles ripped the bell off the thing so pulled it out an put a j.w. ultra bell on it with a b&m pan , shift kit and 2400 stall. Than i bought a 4 inch harwood bolt on hood and new tires all the way around the thing. They are mickey thompson sportsman s/r's 26x8-15 front and 29x15-15s rear What do you think it would run 1/4 mile time 502 ci 450hp-550tq th400 with 2400 stall 4.11 rears with posi __________________ 1981 K-5 Blazer 2wd 1985 C-10 Short step 1988 C-10 Suburban

08-08-2009, 08:52 AM	#2
rigon4 Registered User Join Date: Mar 2006 Location: east syracuse ny Posts: 371	Re: Thought id show you guys my 85 also some pics Attached Images __________________ 1981 K-5 Blazer 2wd 1985 C-10 Short step 1988 C-10 Suburban

08-10-2009, 08:40 PM	#3
bigbadjohn84 Registered User Join Date: Feb 2008 Location: Florala, AL Posts: 398	Re: Thought id show you guys my 85 also um, just a guess. maybe 12.5 or 13. depending on if you had any traction off the line. those are street tires

08-11-2009, 10:15 AM	#4
BossHogg69 motor exploder Join Date: Mar 2009 Location: Pittsburgh, PA Posts: 2,346	Re: Thought id show you guys my 85 also yeah, I was thinking low 13's too. btw, where are the motor pics?! __________________ Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac Use the SEARCH function on this forum - it is your friend!! Last edited by BossHogg69; 08-11-2009 at 10:16 AM.

08-11-2009, 06:37 PM	#5
'72customdeluxe Registered User Join Date: Jan 2008 Location: Tejas Posts: 691	Re: Thought id show you guys my 85 also You need some e/t streets or nitto 555's or something for when you want to go fast. My poorly tuned stock 350 in my last truck with 3.08 gears would spin the crap out of ONE of them. They were 26x12 Mickey Thompson s/r's like you have. So I imagine with a 502, a nice converter and 4.11's it will demolish them, even though they are wider and you have a limited slip. Those do look good though. You just might need some stickies to get it going anywhere __________________ '72 cheyenne super step, '05 long bed gmc

08-11-2009, 09:59 PM	#6
rookierodbuilder Registered User Join Date: Jan 2009 Location: Sharpsburg, Ky. Posts: 110	Re: Thought id show you guys my 85 also I would agree with the 12.5-13 second guesses. for another thing, with the leaves alone, you will have axle wrap issues which will also plague your times. get some slappers along with the stickies and hope it hooks like hell!



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