Engine Block: |
1972 Pontiac 455 with
2 bolt mains and ARP studs, HardBlocked
to bottom of freeze plugs. |
Bore and Stroke: |
4.152" x 4.210"; bored +.030" |
Heads: |
Stock 1974 (400) 4X's, decked to
cleanup and new Sealed Power Valves (2.11" intake / 1.66" exhaust) |
Cam: |
Comp
Cams custom Xtreme Energy grind with 230° intake / 236° exhaust
duration @0.050" ; lift of .497" intake/exhaust with 1.52 rockers ; cam
ground on a 110° centerline. |
Valve Springs: |
Comp Cams 995-16 |
Rocker Arms: |
Comp Cams Roller Tip (1.52:1) with
Crane Kool lock nuts |
Retainers / Keepers: |
Comp Cams 10° |
Lifters: |
Crane Variable
duration |
Crankshaft: |
Original 455*, turned -.010" mains / -.020"
rods fitted with a Warrior crank scrapper |
Rods: |
Original 455, ARP bolts, beams
polished and resized* |
Pistons: |
TRW forged L2359 (0.030" oversized)*
(*Note: All reciprocating parts balanced) |
Rings: |
Sealed Power (moly) |
Bearings: |
Clevite 77 (all bearings) |
Oil Pump: |
Melling M54DS |
Timing Chain / Gears: |
Summit true roller set |
Gaskets: |
Fel-Pro (# KS2616) |
Ignition: |
Jacob's Omni-Pak high
output coil through original 1969 points distributor converted to a Mallory
Unilite. Jacobs 8 mm silicone wires. |
Intake / Carburetor: |
Edlebrock Performer with a Holley 750 double pumper
Update: Speed
Demon 750 vacuum secondary (see News below) -
Pic |
Exhaust: |
4 tube Headman headers to 2 1/4" full exhaust with turbo style mufflers.
Update: Torque Tech 3" full exhaust
system with two 40 series Flowmaster Delta Flow two chamber mufflers. |
Transmission: |
Turbo Hydromatic 400, modified for firm fast shifts, TCI (#240920)
tight lockup converter with 2500 stall. |
Rear End: |
12-Bolt posi with 3.42 gears |
Tires / Wheels / Suspension: |
P245/60R14 (P235/60R14 fronts) BF Goodrich Radial TA with American
Racing Type 23 rims.
Update: Polygraphite bushings at
all 4 corners, boxed control
arms and 1 5/16" Hellwig front
Swaybar. |
Body Mods: |
GTO hood and `69 Judge Wing with `98 GMC Blazer LED third brake light
mounted under wing, wired through wing & post. |
Vehicle Weight: |
3880 lbs. with me |
Performance: |
Best 1/4 of 13.36 and a 103.82 mph (1999)
2.016 shorts coming out slow with the street rubber
Through the 1/8 in 8.601 @ 82.54 mph. |