• JP Magazine
  • Dirt Sports + Off-Road
  • 4-Wheel & Off-Road
  • Four Wheeler

1971 Chevy Suburban - SuperBurb - Part III

Posted in Project Vehicles on July 30, 2004 Comment (0)
Share this
1971 Chevy Suburban - SuperBurb - Part III
Our first step was to get our tired old 350 V-8 out of the 'Burb. With 6 inches of lift and 35-inch tires, we had to try plenty of high-altitude techniques to get it out. First, we flattened the tires. That didn't work. So we removed the tires and wheels and rested the front axle on its rotors. After that we were able to get the engine just barely over the core support. Our first step was to get our tired old 350 V-8 out of the 'Burb. With 6 inches of lift and 35-inch tires, we had to try plenty of high-altitude techniques to get it out. First, we flattened the tires. That didn't work. So we removed the tires and wheels and rested the front axle on its rotors. After that we were able to get the engine just barely over the core support.

You were maybe wondering about the ongoing saga of Project SuperBurb? Allow us to bring you up to date. A few months back we installed a Superlift 6-inch lift, along with a set of 35-inch Pro Comp Xterrain tires. So, why the delay? Well, ever heard of time or money? We have heard of both, but don't have much of either. So Project SuperBurb has been on hold.

But now it's finally time to replace the tired old 350 V-8 found under the hood of our '71 Chevy Suburban. While we considered this prospect, thoughts of a big-block with tons of power danced through our heads. Then of course getting 9 miles per gallon also came to mind, and since this rig could become a daily driver, we decided against a ton of cubic inches.

But we still wanted plenty of torque to help the big Burb out on the trail and while towing. That is when we came across the HT 383 crate engine from GM Performance Parts. It's perfect for the SuperBurb. Built to produce torque down low, the HT 383 produces 435 lb-ft of peak torque at 4,000 rpm. Even better is the fact that it makes more than 400 lb-ft of torque from 2,500 to 4,000 rpm. On top of this it also makes 340 hp at 4,500 rpm. Other workhorse features include a hydraulic roller cam and a four-bolt main block. We also liked its 9:1 compression ratio--that means that we can run it on 87-octane gas and still harvest all that power and torque. Best of all, it's a brand-new long-block ready to be dropped in and fired up. So we think we've chosen the perfect truck engine.

Next, we had to find a transmission for the SuperBurb, one with an overdrive, since we are running 4.88 gears. Here the choice of a NV4500 five-speed manual from Advance Adapters to replace our SM465 four-speed manual was simple. First off, these are brand-new transmissions, are plenty stout, and combine a 5.62:1 first-gear ratio with a 0.70:1 fifth gear. The folks at Advance Adapters have the necessary pieces to mate the NV4500 to our NP205. So what follows is a summary of our weekend wrench sessions as we slammed the HT 383 and NV4500 in the 'Burb--but minus all the cussing and busted knuckles.

View Slideshow
View Slideshow

Finally, to let the HT 383 breathe right, we selected a Holley Power Shot air filter. They flow a lot of air but still do an excellent job of filtering. Even better is the fact that they are washable after a day of wheeling.

Project SuperBurb - Part 1
Project SuperBurb- Part 2
Project SuperBurb- Part 4
Project SuperBurb- Part 5
Project SuperBurb- Part 6

Sources

Energy Suspension
San Clemente, 92673
888-913-6374
http://www.energysuspension.com
Chevrolet Performance Parts
Detroit, MI 48232
800-577-6888
www.gmperformanceparts.com
Advance Adapters
Paso Robles, CA 93446
800-350-2223
www.advanceadapters.com
JET Performance Products
Huntington Beach , CA
800-535-1161
http://www.jetchip.com
Harbor Freight Tools
800-423-2567
www.HarborFreight.com

Related Articles

Comments

Connect With Us

Newsletter Sign Up

Subscribe to the Magazine

Sponsored Content