| Engine Block: |
1972 Pontiac 455 with 2 bolt mains |
| Bore and Stroke: |
4.15" x 4.21"; + .030" over, 462 cubic inches |
| Heads: |
6X D port heads with Ferrea stainless steel 2.11" intake and 1.77"
exhaust valves (ported by Dave with assistance from Jim Hand and Kevin Flahrety
from K & M Machine); 9.8: 1 compression |
| Deck Height: |
.012" (below the deck, of course) |
| Valve Springs: |
Jim Butler # 052b dual springs with damper |
| Rocker Arms: |
Jim Butler 1.52 roller rockers |
| Retainers: |
stock |
| Keepers: |
stock |
| Valve Seals: |
teflon type |
| Lifters: |
Jim Butler |
| Push Rods: |
Jim Butler (Competition Cams Chrome Moly) 9.20" |
| Crankshaft: |
Stock, journals polished, balanced |
| Rods: |
stock untouched except for resizing big ends |
| Rod Bolts: |
Milodon 190,000 psi |
| Pistons: |
TRW L 2359F +.030 |
| Rings: |
Speed Pro moly rings |
| Bearings: |
All bearings are Clevite 77 |
| Timing Gear and Chain: |
Edelbock double roller, 3 key way |
| Gaskets: |
Fel Pro engine set, Felpro header and collector
gaskets |
| Camshaft: |
Ultradyne: 239 intake, 247 exhaust duration @.050": 296 intake and
304 advertised duration. Lobe separation 110 degrees. Installed at 103 intake
lobe center. Lift is .514" intake and .537" exhaust. Rough idle. |
| Intake Manifold: |
Performer RPM with .5" cut divider at secondary opening |
| Carburetion: |
800 cfm Quadrajet assembled by David; idle tubes modified by Jim Hand
.075" primary jets with .044" rods; .018" secondary rods. |
| Fuel Pump: |
Holley with regulator set at 5.5 pounds pressure. Maintains 5.5 pounds
during wide open throttle. -8 stainless steel braided hose to regulator
and -6 from regulator to carburetor |
| Exhaust: |
Hooker Super Competition headers (1.75" primaries with 3" collector),
Dr. Gas 3" crossover into Flowmaster 3 chamber 3" mufflers; Torque
Technologies' 3" tail pipes; Update: Walker Race Magnums substituted
for Flowmasters |
| Ignition: |
Stock HEI triggered by Crane Hi-6 ignition box. MSD cap and rotor. Accel
300+ race wires. Advance modified to be in by 2500 rpm; total advance is
31 degrees; there is no vacuum advance; Update:
lightweight mini starter replaces stock unit |
| Oil Pump |
Melling M54DS; use Mobil One 10-30 synthetic oil |
| Transmission: |
TH-350 with modified separator plates for firm shifts. High Stall Continental
torque converter. |
| Rear End: |
3.42 gearing in stock 10 bolt limited slip unit. South Side Machine lift
bars |
| Suspension / tires: |
Competition Engineering Drag shocks front and rear. Old rubber: Hoosier
28"x9"x15" slicks. New rubber: MT ET Street 28"x12.50"x15" |
| Vehicle Weight: |
Approximately 3800 pounds with driver; Update: fiberglass hood substituted
for stock TA hood |
