Bruce's '72 Nova: 2001
- Fabricated and installed traction device
- Installed 4.10:1 Richmond gears
- Installed new Tom's Kick-Ass Axles from Tom's Differentials
- Put in my new (to me) Hurst Quarter Stick shifter
- Installed my new 4000-stall Midwest converter
- Converted my fiberglass bolt-on hood to pin-on
Unfortunately, along with the advantages a lift-off hood provides, there's one disadvantage. When the hood is on the roof, it's easy to forget about it! I had it on the roof in mid-August and was moving my car around the driveway so I could do another project in the garage. As you might have guessed, I forgot about the hood and punched the gas to get up the driveway. Strangely, that didn't cause a problem. The problem came when I hit the brakes as I approached the house and the hood slid forward along the roof and fell down into the engine bay. The hood is fine, but the leading edge trim hit the top inside corner of my right fender and took off a couple small chunks of paint and somehow (I'm still not sure how) the hood put a small tear in my vinyl roof at the very front, almost in the center. I wonder if that happened when I gassed it? There are those studs holding the front trim piece to the hood, maybe one of those cut into the vinyl as the car accelerated forward and the hood tried to stay where it was? A body at rest tends to stay at rest unless acted upon by an outside force...
Oh well, it's a street car, right?
I reinstalled the carb and the bog is better, but not gone. Hopefully some adjustments will eliminate that problem.
Two new problems have presented themselves, however.
First, when in top
gear at about 45+ mph giving it some good pedal (anywhere from half- to full-throttle) for
solid acceleration, it sounds like it's missing or like there's a huge vacuum leak or something.
WAA uhh WAAA uh WAA uhhh, and so on. It's not like I'm giving throttle and then no throttle,
it's not nearly that severe, but it's very noticeable. Maybe a lean surge? My oxygen sensor readings
are very low (lean) under acceleration (when above the power valve's opening point (100 mV)), but
this problem occurs even when the PV is open resulting in a rich condition (900 mV), too, so it
doesn't seem to relate to the air/fuel ratio. Odd.
But before I can address that issue, I have a more immediate problem: My driver's side motor mount
is broken. I happened to drive with the hood off for a few miles and immediately saw what was
going on. When I punch it from a stop the driver's side of the engine lifts up about 2 inches!
Here are a couple screen shots of the video I took showing it at rest and when I punch it.
Here are the final 2001 specs for my car:
- '73 350 block from a Nova SS, align-honed, decked, and bored .030" over
- Stock cast crank turned down .010"/.010"
- Rebuilt 5.7" rods with ARP Waveloc bolts from Northern Auto Parts Warehouse
- Speed-Pro hypereutectic flattop pistons
- 10.1:1 static compression ratio
- Hastings moly rings
- Melling M55A oil pump
- Moroso oil pump pickup
- Moroso windage tray
- Moroso 7-quart oil pan
- Vibratech 6-3/4" StreetDampr harmonic balancer
- Comp Cams Xtreme Energy 274 cam - 230/236 degrees duration @ .050" lift, .487"/.490" valve lift, 110 degree LDA
- Bow Tie iron heads, casting number #034, 2.02"/1.60" valves, 1.46" springs, guideplates, screw-in studs
- Crane Gold full-roller rockers, 1.5:1 on intake, 1.6:1 on exhaust
- Comp Cams #926 valvesprings
- Edelbrock Performer RPM intake manifold
- Holley #3310 750 cfm vac. sec. carb with secondary metering block and 50cc accelerator pump - 76/82 jets, lightest secondary spring
- K&N 14x4 air filter in a Summit Racing housing
- MSD Pro Billet distributor and Blaster 3 Power Tower coil
- Hooker Competition 1-5/8" headers
- Mandrel-bent 2-1/2" dual exhaust all the way to the rear bumper with 3" collector extensions, cutouts, oxygen sensors, and Thrush California Turbo mufflers
The Rest of the Driveline:
- TH 350 with B&M Shift Improver Kit (which I highly recommend!)
- Hayden tube-and-fin tranny cooler
- Midwest 4000-stall, 10-inch converter
- Stock driveshaft with Summit safety loop
- '72 8.5" 10-bolt rearend housing
- '73 or '74 Nova Eaton posi carrier
- Richmond 4.10:1 ring & pinion
- Tom's Kick Ass replacement axles
- Homemade traction bars
Chassis and Suspension:
- Stock unibody frame with homemade subframe connectors welded in
- Graphite-impregnated polyurethane body mount bushings
- Graphite-impregnated polyurethane leaf spring bushings and pads
- Original front V8 w/ A/C coil springs with one coil removed
- Herb Adams 3-way adjustable shocks on all four corners
- Relocated upper control arm (per Dick Guldstrand's recommendations) for more positive camber gain
- Graphite-impregnated polyurethane upper and lower control arm bushings and bump stops
- Hellwig 1-1/8" front anti-sway bar with graphite-impregnated polyurethane bushings
- Addco 3/4" rear anti-sway bar with polyurethane bushings
- Front steering system rebuilt in '97 including tie rods, sleeves, ball joints, idler arm, and Pitman arm.
- Rebuilt power steering gearbox with 12:1 ratio and high effort valve by Lee Power Steering.
- Rebuilt power steering pump by Lee Power Steering.
- New stock replacement rag joint
- '73 Nova SS tilt steering column
© 2020 Bruce Johnson and Craig Watson