My Rear End Build For My Low Buck Street/Race Truck

Mark Jones said:

Thanks....its been fun, probably run high 11s @ Woodburn!

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Mark as in woodburn Ore? Mark where are you located? Love your attitude, and your inventiveness, old school, admire your work. Come late fall-winter, hope to do lots of wrenching, build my LQ4 for the 54 Chevy. Would love to get it into the 12's to start, hopefully better as time goes on. Keep posting as I "monitor" your progress, as you are someone that "Get's er' done.

Craig Nedrow said:

Mark as in woodburn Ore? Mark where are you located? Love your attitude, and your inventiveness, old school, admire your work. Come late fall-winter, hope to do lots of wrenching, build my LQ4 for the 54 Chevy. Would love to get it into the 12's to start, hopefully better as time goes on. Keep posting as I "monitor" your progress, as you are someone that "Get's er' done.

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Yes Woodburn Oregon, I've raced there before, very fast there. Thanks for the nice comments. I live in Colorado Springs and Thousand Oaks Ca, right now in Colorado. My first series of modifications netted a reduction of 9 tenths of a second and 3 3/4 of a MPH. I still have the light weight front rims and tires and the aluminum drive shaft to go.

Mark Jones said:

Yes Woodburn Oregon, I've raced there before, very fast there. Thanks for the nice comments. I live in Colorado Springs and Thousand Oaks Ca, right now in Colorado. My first series of modifications netted a reduction of 9 tenths of a second and 3 3/4 of a MPH. I still have the light weight front rims and tires and the aluminum drive shaft to go.

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Wow, 9/10 and 3 3/4 is a bunch. Sure wish you were closer, we need a great machinist up here. Watched everything and subscribed to everything youtube. You are meticulous, absolutely necessary for machine work. Worked only a smattering in auto machine shop, but have ported heads, assembled all my motors after the machining, (caught a few small mistakes, that would have made my last 350 a dog, forgot to finish two valves on my 350!) Putting a high horse (for me,) LQ4 turbo motor this winter. Need to pull it apart, and check the bores, but will replace the pistons with between .025-.030 dish forged pistons and file fit rings. Using a Borg Warner 465 turbo, 728 open chamber heads ported by Katech, Launiti 6.125 rods with ARP bolts, Texas Speed turbo cam, around .600+ lift turbo cam. For my cool old 54 chevy 3600. All most done with chassis and suspension. Built a dana 61 from a ford 450 truck. Converted in to fanged axle, with big ford bearing, Strange 35 spline S/S axles, 4.56 Yukon gears. Welded ears onto the center section to make it triangulated, Mustang disk brakes. Want to take to Bonneville next year if they run, coolest place on earth for home built fast cars. Yes I will change the gears for that. Keep posting here and Youtube!

potent rodent said:

u better have the engine to go with the 514 gears. they are not street gears nor are they 1/4 mile gears they are 1/8th mile , u said u want to run 55 mph on the hwy like i said u better have the engine or that 327 will have a short life

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The 30 inch tires will tame the 5.13 gears. Properly built, a 327 will handle rod stretching rpm easily.

Moving to the front of the truck now, I have my rotors machined for a 5 on 4/3/4 pattern, 15x3.5 lightweight rims with Moroso tires going on, looking forward to seeing what this does for my ET!

idahovette said:

DOUBT??

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Were going to find out if I got a high altitude 12 sec truck Saturday.........

Screw-in front studs then?

Mark Jones said:

Were going to find out if I got a high altitude 12 sec truck Saturday.........

You must be registered for see images attach

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Love the torque thrusts on the trailer.

Turn em and burn em.


I'm pulling for ya, we're all in this together.

I didn't read the whole thread, but I did do better than my normal skimming so I did read what I think was the important parts. I'm glad to get in on this BEFORE you take it out again with the 5.13's. I seen your comments of getting into the 11-12's. So you're at 13.50's with the open diff 3.07's. So you did get it to hook with the peg legger? Or No? Whether you did or not, I'm going to make a prediction that you DO NOT get into the 12's with just a rear axle modification. If you do it's going to be way high 12's and I'd actually be shocked if you do but I'm not seeing you pick up over 1/2 second in the 1/4 mile by a gear swap. I'm going to go with you're going to be around the 13.10-13.20 at the very best and I'm leaning more towards the 13.20's. Post up some time slips and let's see what you did. Hopefully you have some time slips to compare the 3.07's to the 5.13's. Only huge improvement you might see is your 60 foot times.

I think its important to mention I never seen high gear with the 3.07 gear, I ran through in second gear. When I ran 13s with the 3.07 gear I was fully hooked up (no spin) with the open rear end with a 30X9 radial slick with 30 PSI. 2.17 60 foot. The 327 really didn't like the 3.07 gear, really needs more gear than a 5.13. When I ran 13s with the 3.08 I had everything on kill, Iced intake, no tail gate, no power steering, turning only the water pump. My latest test is with power steering, tail gate, turning everything, no ice.

Conditions today:

10 MPH cross wind, a killer in a truck
27.43 barometer
4300 foot DA

Any extra power makes a dramatic difference on the launch of this truck, which makes a dramatic difference in ET, because its so down on power. I believe it could possibly run close to 11s in the right conditions.

bucket said:

Screw-in front studs then?

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Yes

If you do your research. Mark has been around a few cars and built a few engines....

Not to put you on the spot Mark. However I do admire your discretion and humble attitude.

Mark Jones said:

I think its important to mention I never seen high gear with the 3.07 gear, I ran through in second gear. When I ran 13s with the 3.07 gear I was fully hooked up (no spin) with the open rear end with a 30X9 radial slick with 30 PSI. 2.17 60 foot. The 327 really didn't like the 3.07 gear, really needs more gear than a 5.13. When I ran 13s with the 3.08 I had everything on kill, Iced intake, no tail gate, no power steering, turning only the water pump. My latest test is with power steering, tail gate, turning everything, no ice.

Conditions today:

10 MPH cross wind, a killer in a truck
27.43 barometer
4300 foot DA

Any extra power makes a dramatic difference on the launch of this truck, which makes a dramatic difference in ET, because its so down on power. I believe it could possibly run close to 11s in the right conditions.

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So now that you confirm that you did hook on slicks even with the peg legger and 3.07's that even more confirms my prediction. I already knew you never seen 3rd gear in the 1/4 mile and you're only shifting once from 1st to 2nd. Now you'll use all 3 gears and shift twice but my prediction stands, you don't get into the 12's with the 5.13's. Did you run it today at the track. How did you do? Believe it or not, you do have enough gear with 5.13 and going even steeper yet is not going to improve your time but maybe by hairs.

BigDaddy72 said:

If you do your research. Mark has been around a few cars and built a few engines....

Not to put you on the spot Mark. However I do admire your discretion and humble attitude.

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Yes.

HotRodPC said:

So now that you confirm that you did hook on slicks even with the peg legger and 3.07's that even more confirms my prediction. I already knew you never seen 3rd gear in the 1/4 mile and you're only shifting once from 1st to 2nd. Now you'll use all 3 gears and shift twice but my prediction stands, you don't get into the 12's with the 5.13's. Did you run it today at the track. How did you do? Believe it or not, you do have enough gear with 5.13 and going even steeper yet is not going to improve your time but maybe by hairs.

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Actually what I need is another 1400 RPM of converter flash!

Mark Jones said:

Actually what I need is another 1400 RPM of converter flash!

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You'll won't be happy with those results either. Are you saying you're running a stock stall converter now? Sounds like you're wanting alot of stall. Did you make it to the track Saturday?