A lot of folks want to know exactly what things are under the hood and car and what makes it so darn special. Heck, who knows any more, it has changed so many times? That's why we try to keep track of everything here... time permitting.
Here's the more important components broken down by each "sub-system" as it currently sits in the garage for the 2005 racing season.
Powertrain (with 391 LT4)
Dyno Info (Graph and Chart) for prior 385 LT1 and current 391 LT4
350 LT1 #2
Suspension
Exterior
Interior
Racing Safety Gear
Corner Weights
6.37L (391ci) SFI LT4 V8
Crank: Callies Dragon Slayer 3.875" 4340 forged 1 piece rear main seal crank
Rods: Lunati LAD1 4340 6.00" Pro Mod forged steel rods
Pistons: Arias pistons with a -16.5cc dish
Rings: R-977 gappless .005 ring set
Rod Bearings: Clevite 77 H-series CB663H race bearings
Main Bearings: Clevite 77 H-series MS909H race bearings
Cam Bearings: CHP8
Caps: Stock LT4 4 bolt main caps
Main Studs: ARP studs and bolts
Internally balanced crank and rotating assembly
LPE Stage II CNC ported LT4 heads
58cc combustion chambers
Ported intake and exhaust runners
LT4 Valves: 2.00" intake
1.55" exhaust
Valve springs: Comp Cams 985-16 dual springs
Retainers: Comp Cams 730-16 titanium retainers
Spring Seats: Comp Cams 4770-16 .060 shims ???
Valve Locks: Comp Cams 611-16 10 degree super lock
Valve Seals: GM 12533586 stock valve seals
Rocker Arm Studs: Comp Cams 4501-16 7/16"
Roller Rockers: Comp Cams 1305-16 1.6 Pro Magnum roller rockers
Guideplates: Comp Cams 4808-8 5/16"
Push Rods: Comp Cams CCA-7940-16 Hi-Tech 5/16" hardened chromemoly
Roller Lifters: Comp Cams CCA-875-16 Pro Mag hydraulic
Head Studs: ARP
Felpro PermaSeal 1074 .035 head gaskets (or Victor Reinz 11679-8 Nitroseal .039 head gaskets)
Comp Cams 07-306-8 230/244 .544"I/.576"E w/1.6 112LS cam grind number 290HR-12
GM-12370835 GM Extreme Duty timing chain set (stock timing cover)
Canton 15-242T 6 qrt racing oil pan
Melling M55HV High volume oil pump
Canton 10-020 high volume pick up
Canton 21-200 Oil Pump Driveshaft
G2-101 -35% circumference crank (power) pulley and drive belt kit
B&B engine oil cooler w/fan & 350 V8 oil filter adapter (for Chev Blazer?)
Moroso cold air intake with K&N filter
Vortech satin finish aluminum intake elbow
Edlebrock/BBK 58mm throttle body and plate
NTI Racing 58mm and full runner ported LT4 intake
SVO/Bosche 30# injectors
TPIS adjustable fuel pressure regulator
Walbro 255LPH high volume in tank fuel pump
Fuel Safe custom 25 gallon fuel cell and fuel lines
Accel 300+ ignition
MSD coil w/harness
Taylor Spiro Pro or MSD spark plug and coil wires
Stock Opti-spark distributor w/vent hose
'96 LT4 knock sensor module PN:16214681
Jim Greenwood custom PCM reprogram for race engine specs
JET-HOT 2000 coated Jet-Hot long tube 1-3/4" headers
Hooker 3" in/outlet long tube header Y pipe
2 DynoMax end to end bullet mufflers w/turndown pipe (primary)
Glass pack w/dual exit (backup)
New EGR valve, knock and O2 sensors
Hypertech LT1 160 degree thermostat
Griffin 6-593AE-GXX race radiator
NTI Racing air dam
NTI Racing radiator cooling intake and rock grill
L98 breather hose fittings and retainers on valve covers
Breather hoses both sides with filter vented aluminum overflow bottle
Upgrade pilot bearing
Corvette starter
Balanced stock flex plate (primary)
Balanced QuarterMaster Pro 5.5 triple disk race clutch (primary)
Quartermaster QMI hydraulic release bearing, lines and fittings (primary)
SLP light weight flywheel (backup)
Stock flywheel (backup)
SPEC Stage 3 clutch with ceramic disc (backup)
M6 T-56 transmission (2nd T-56 spare)
Polyurathane transmission mount
5.0 shifter w/stock ball
Metal Matrix Composite Aluminum (MMC) drive shaft
Spare stock drive shaft (on the shelf)
GM Motive 3.73 ratio gears with Zexel-Gleason/Torsen T-2R Race Master posi-traction and differential in stock housing
GM Motive 3.73 ratio gears with Zexel-Gleason/Torsen T-2R Race Master posi-traction and differential in stock housing (spare/used one season)
Tapped and threaded rear differential vent tubing with filter vented plastic overflow bottle
EVANS Non-Aqueous Propylene Glycol (NPG) coolant
Red Line 10W40 or Mobil-1 10W30 (engine oil - depending on weather temps)
Red Line High Temp ATF (trans)
Red Line 75W90 (rear diff)
Red Line PS fluid
5.7L (350ci) SFI 4 bolt main GM crate LT1
Used for 1999 and 2000 race seasons and then rebuilt into the 391 ci LT4 for the 2005 season
This motor recorded 268 RWHP SAE (apx 300 FWHP) and 302 TQ equipped with MAC 1-5/8" headers
NTI Racing/Don Berry front lower control arms (-2 camber, 4.5-4.8 caster) NAPA part #269-2651 tie rod end links for extended control arms BMR Fabrication SS style shock tower brace (with mods) Power rack & pinion steering Power steering fluid cooler Chicago Rawhide Bearing stainless steel spindle, hub, bearing & ABS assemblies front Four wheel anti-lock disk braking system Baer Pro Race Plus radial mounted "Alcon Four" piston calipers front Coleman 13.5" x 1.25" two piece rotors/hat front (spare set also) HD rear axles (primary) Stock calipars, rotors and spare axles rear Performance Friction 01 front & 97 rear brake pads ARP wheel studs front and rear Teflon lined, steel braided front & rear brake lines Super Blue brake fluid Front brake cooling ducts Eibach Pro-Kit lowering springs G2 32.5mm front & 21.5mm rear sway bars w/poly-graphite bushings Bilstein front and rear shocks Hotchkis pan hard rod w/poly-graphite bushings Canton light weight aluminum rear control arms adjustable w/poly front and ball joint rear rod ends Clearance modified torque arm w/#355-3-1111R Energy Suspension poly torque arm bushing Spohn Performance, Inc. rear control arm brackets (both rear ends) Energy Suspension bushings One set 11" x 17" CCW light weight race wheels w/rear spacers Two sets 9.5" & 10" x 17" OZ Competition wheels Firestone Firehawk P275/40ZR17 front and P285/40ZR17 rear tires (rains) Hoosier P275/40ZR17 front and P315/35ZR17 rear race tires (depending on supply) or Avon P275/40ZR17 front and/or Good Year GS-CS P275/40ZR17 front and P315/35ZR17 rear race tires (depending on supply)
Lightened cowl induction fiberglass hood with NTI Racing hood pins Custom stripe kit Alan Blaine custom made fiberglass roof panel (replaces T-tops) ZR28 ground effects ZR28 rear spoiler AVS headlight covers Night racing head lights (if needed) Remote side and adjustable wide view center mirrors Tow hooks (front and rear) Car numbers 10 or 110 (depends on the race) Racing decals (you name it) Sponsor logos (depends on season) Removed crush bumper material/bracing for racing
Tilt, leather wrapped stock steering wheel Door windows (removed when racing) Sparco Pro 2000 race seat (red) I/O Port seat back brace Manual seat adjuster (w/metal rail backup) for race seat Power driver seat for second driver(s) (swapped when racing) Manual passenger seat (removed when racing) Autopower 8 point roll cage with dual side bars both sides (per SCCA rules) G-Force FIA approved 5 point harness (driver seat) Simpson 6 point harness (passenger seat) Window net, clamps, etc. Battery relocated to right rear passenger seat area in box Master cut off switch Camera mount on roll cage Transponder system
Bell M2 SA-95 helmet Red Auto Pro SFI 3-2A/5 one piece race suit Red G-Force racing boots Red racing gloves 2 pair nomex socks Single layer eyeport nomex racing hood Auto Pro racing equipment bag
LF = 1035, RF=998, LR=790, RR=736 TOTAL = 3559 (apx empty curb wt = 3260) LF + RR = 1771, RF + LR = 1788 (17 lbs diagonal difference) Front to rear balance = 2033 to 1526 or 57% to 43%
LF = 925, RF=934, LR=887, RR=726 TOTAL = 3472 (apx empty curb wt = 3226) LF + RR = 1651, RF + LR = 1821 (170 lbs diagonal difference) Front to rear balance = 1859 to 1613 or 54% to 46%
LF = 1018, RF=969, LR=762, RR=715 TOTAL = 3464 (apx empty curb wt = 3226) LF + RR = 1733, RF + LR = 1731 (2 lbs diagonal difference) Front to rear balance = 1987 to 1477 or 57% to 43%
These numbers (which were done one week later on 05/31/03) were with the same basic set up except w/o head lights, w/o the center console, with the SZ50 street tires and with 7/8 fuel of tank.
LF = 1006, RF=1003, LR=782, RR=720 TOTAL = 3511 (apx empty curb wt = 3226) LF + RR = 1726, RF + LR = 1785 (59 lbs diagonal difference) Front to rear balance = 2009 to 1502 or 57% to 43%
These numbers (which were done two weeks later on 06/13/03) were with the same basic set up including the SZ50 street tires but with lighter rear control arms, with the T-tops replaced by a fiber glass top, with the rest of the interior trim removed and with 5/8 tank of fuel.
LF = 964, RF=968, LR=805, RR=709 TOTAL = 3446 (apx empty curb wt = 3185) LF + RR = 1673, RF + LR = 1773 (100 lbs diagonal difference) Front to rear balance = 1932 to 1514 or 56% to 44%
These numbers were after the next Oregon Regional race with a bone dry fuel tank.
LF = 920, RF=950, LR=813, RR=697 TOTAL = 3380 (apx empty curb wt = 3185) LF + RR = 1617, RF + LR = 1763 (146 lbs diagonal difference) Front to rear balance = 1870 to 1510 or 55% to 45%
Note how the lower the fuel the higher the diagonal difference gets and how the front to rear weight shifts towards a better balance ratio (which is hard to figure?).
LF = 978, RF=904, LR=807, RR=783 TOTAL = 3472 (apx empty curb wt = 3134) LF + RR = 1761... 50.7%, RF + LR = 1711... 49.3% (50 lbs diagonal difference) Front to rear balance = 1882 to 1590 or 54.2% to 45.8%
These corner weights are for the same set up but w/o driver (full fuel load)... the cross weights are darn near 50/50 perfect!
LF = 903, RF=896, LR=747, RR=739 TOTAL = 3285 LF + RR = 1642... 50.0%, RF + LR = 1643... 50.0% (1 lb diagonal difference) Front to rear balance = 1799 to 1486 or 54.8% to 45.2%
At the 2007 Rose Cups race the car weighed apx 3461 w/driver. It also has a larger Griffin radiator plus the roll cage was upgraded to 8 points with double side door bars (minus apx 10 gallons of fuel). Apx empty curb wt = 3186.
BROKEN PARTS - CLICK HERE